GB Cup 2025 Autumn

The GB Cup 2025 Autumn (GBC 2025 Autumn) was a 3v3 captain draft–based osu!mania 4-key tournament hosted by Team GB. It was the ninth instalment of the GB Cup.

Tournament schedule

Prizes

QQ division

Team placing	Prizes
	Profile badge, ¥200 CNY
	¥200 CNY
	¥150 CNY
5-8 place	¥100 CNY
9–16 place	¥50 CNY

Discord division

Team placing	Prizes
	Profile badge, 2 months osu!supporter tag for members
	2 months osu!supporter tag for members
	1 month osu!supporter tag for members

Organisation

The GB Cup 2025 Autumn was run by Team GB and various community members.

Links

• Discussion thread (English)
• Discussion thread (Chinese)
• Livestream

  • Bilibili stream ( [GB]yobrevelc)
  • Bilibili stream ( aiyulu)
  • Twitch stream
• GBC QQ group
• GBC Discord server
• Information spreadsheet
• Statistic spreadsheet

Participants

QQ division

Discord division

Podium

This competition has come to an end and resulted in the following podium:

QQ division

Placing	Player
	Q20: 不整活
	Q4: 玩不玩
	Q23: 队员已红温之anpig1013, Q22: My Angel Noodle

Discord division

Placing	Player
	D8: super magical chest
	D6: Siemieniakowszczyzna
	D20, D13

Mappools

Semifinals & Finals

Download map pack here

• Rice

  1. Kyary Pamyu Pamyu - Kira Kira Killer (Cut Ver.) (Yuiesta) [L! U! C! K!]
  2. technoplanet feat. Haruno - End of Fairytale (Popy) [Staying in Reality (GBC ver.)]
  3. katagiri - Cafe De Kemomimi Loli (V1do-) [Methamphetamine]
  4. NAKISO feat. Hatsune Miku - Retry Now (MyAngelLaPluma) [Jack Now 1.05x]
  5. RADWIMPS - Hyperventilation (KimMui) [Thoracalgia (cut+edit)]
  6. Virtual Riot - Don't Worry ([GB]Cinelia, - Hitsuumi -) [Disorder]
  7. ShinRa-Bansho - Miko-sama no Aburaage disco ([GB]Cinelia) [rice disco(1.05x)]
• Hybrid

  1. Night Yard - Seika (PORTTAYER) [EXTRA+ x1.1]
  2. Camellia - Seagull (-Oblivionis-) [Arduous Journey]
  3. SIHanatsuka - Symmetry (PORTTAYER, V1do-) [Tayer vs V1do's Glitch]
• LN

  1. Kano - Walk This Way! ([GB]Fomurz) [Sweet Memory]
  2. #EmoCosine - Never Ending Future (-SoraIro-) [Grace in Goodbye]
  3. BlackY feat. Risa Yuzuki - Kannagi (PORTTAYER) [Kusanagi]
  4. IU - The Red Shoes (Cut Ver.) (Micleak) [Fleeting; Long, and on I go 1.05x (GBC Edit)]
• SV

  1. Frums - drnfctn (kamikho) [you need SV]
• Tiebreaker

  1. Akiri - The Angel Of Fallen Origins (Collab) [Genesis: Banished Creator]

Quarterfinals

Download map pack here

• Rice

  1. 4cat feat. flower - Me-first Egoist (Lott) [('-')]
  2. Plum - Dustwind (- Hitsuumi -) [Siltstorm (edit) 1.15x]
  3. Laser Imouto - Prismatix (V1do-) [Stellar 1.15x]
  4. Creepy Nuts - Gouhouteki Tobikata No Susume ([GB]Tyris) [fall down 1.1x]
  5. Supire - Helios (Cut Ver.) (chy030_ft_pH5_6) [analog signal]
  6. natori - What is ahead of the tunnel? (KimMui) [Could I be in love?]
  7. Chroma - To the Milky Way ([GB]Oceanus) [Venture into a New galaxy (edit)]
• Hybrid

  1. takehirotei - Tainted Reminiscence (V1do-) [Rewind]
  2. technoplanet - Megastructure (PORTTAYER) [INFERNO]
  3. 100 gecs - xXXi_wud_nvrstop_UXXx ([GB]Cinelia) [Broken(Edit)]
• LN

  1. JIN - T.A.O. feat. Luo Tianyi (-Oblivionis-) [Evolution]
  2. Aquestion - urara (Yuiesta) [cfv extra stage]
  3. Taishi feat. Mitose Noriko - The Blue Sanctuary (Cut ver.) (PORTTAYER) [swim in the sea of quarks]
  4. Kozakai Yurie, Oomori Nichika, Hasegawa Rena - ULTRARHYTHM (Prod. Hylen) (V1do-) [Mayhem Concoction]
• SV

  1. VeetaCrush & Project G - glacier's poetry (-Oblivionis-) [Insurmountable]
• Tiebreaker

  1. SEVEN LIVES - The Bewitching Voice of the Nine-Tailed Fox ([GB]Cinelia, RTrigger) [Hypnosis // co. RTrigger]

Round of 16

Download map pack here

• Rice

  1. Jay Chou - Qi Li Xiang (Cut Ver.) (Yuiesta) [Ba Shan Ye Yu Zhang Qiu Chi / 1.05]
  2. Anfini - Photon (PORTTAYER) [Speed of Link x1.1]
  3. ABSOLUTE CASTAWAY - Shinsou Shintouron (Yuiesta) [HELP ME, MIKOOOOOOO!! / 1.10]
  4. Utata-P feat. Yuzuki Yukari - Shiawase ni Nareru Kakushi Command ga Arurashii (Cut Ver.) ([GB]Fomurz) [Real Master in maimai]
  5. Wink - Ai wo Ubatte Kokoro Shibatte (Cut Ver.) (Miaurichesu) [Lovebound 1.05x]
  6. dawn-system - T'Suramic (dawn-system 2016 tsunamix) ([GB]Tyris) [lolicore]
• Hybrid

  1. HyuN feat. Sennzai - Duplicity Shade (Cut Ver.) (RTrigger) [Disanimate (edit)]
  2. Camellia - Bring Our Ignition Back (Cut Ver.) ([GB]Cinelia) [Take Your Spark Forever]
  3. Ruby My Dear - Saint Patron ([Crz]FolAH1217) [Extra (edit)]
• LN

  1. Minstrel - today is the day (Cut Ver.) (PORTTAYER) [December 8 x1.05]
  2. rejection - Aimai Attitude (feat. Nakamura Sanso) (Cut Ver.) (V1do-) [<3 <3 <3 <3]
  3. HAKUSHI HASEGAWA - Desert (V1do-) [Till Dawn]
• SV

  1. Eliminate - Cyber Whale (xxuurruuii) [SV]
• Tiebreaker

  1. modlessflash - SYNCOPATiON (Collab) [RHYTHMiC DiSTURBANCE]

Group Stage Round 3

Download map pack here

• Rice

  1. Mosq - Moonlight Daydream (feat jen & Neptune) (Cut Ver.) (-Oblivionis-) [Full Moon Full Life]
  2. MYGO!!!!! - Hitoshizuku ([GB]Fomurz) [RE:Master 1.1x]
  3. DJ Sharpnel - Zero Steiner (PORTTAYER) [Amadeus x1.1]
  4. DJ Amane - Early Summer Rain (Cut Ver.) (Blue_Potion) [Calm in the Storm 1.0x]
  5. JynX - Microcosm ~ Homunculus nightmare (Cut Ver.) (KimMui) [Stolen Omniscience & Omnipotence]
  6. False Noise - Kek ([GB]Tyris) [coc]
• Hybrid

  1. Marmalade butcher - =/=Virtual Futural (V1do-) [Intangible]
  2. MEMODEMO - Showoff Showdown (V1do-) [Rock Tonight!]
  3. Mwk feat Hatsune Miku - Snow Crystal (PORTTAYER) [Northern Lights [edit] x1.05]
• LN

  1. Guchiry feat. flower - Abnormality, Dancin' Girl (V1do-) [Ordinariness]
  2. La priere x ShinRa-Bansho - #Yamikawa (Cut ver.) (Ninesey) [ASMR]
  3. Team Red but Blue - First Adventure (chy030_ft_pH5_6) [the Wizard of OSU]
• SV

  1. Sub001 - Synth Gardens (xxuurruuii) [SV]
• Tiebreaker

  1. t+pazolite - Gumbarlzo! (V1do-) [Matsuri]

Group Stage Round 2

Download map pack here

• Rice

  1. Crispy - Bubble Dancer (Sakisagee) [blub]
  2. airportexpress featItsuneko - BIRTH (Yuiesta) [creation / 1.20]
  3. LegoLee - Trajectory (chy030_ft_pH5_6) [paperplane]
  4. Street - Hypothesis (PORTTAYER) [Goldbach]
  5. 633397 - let me go (Sakisagee) [i want to be free]
• Hybrid

  1. Rabbit House feat. NezMayo - Seculo Seculorum (V1do-) [Echoes]
  2. PRASTIK DANCEFLOOR - TECHNOPOLIS 2085 (V1do-) [FUTURISTIC HYPERBEAT]
• LN

  1. Ponchi feat. haxchi - Nyanderful <3 Summer!! (-SoraIro-, Popy) [Serendipity w/ Popy]
  2. Tenrogun - BAD SURPRISE (RTrigger, DivineJudas) [Surprise! / co.DivineJudas]
  3. Kikuo - Yoru no Uta (Cut Ver.) (V1do-) [Wonderland in Darkness]
• SV

  1. Son Tung M-TP - Lac Troi (Cut Ver) (Lott) [Ephemerality]
• Tiebreaker

  1. DJ Raisei - Tsuikou no Toshi yori (V1do-, [GB]Fomurz) [Seekers of Distant Worlds (w/ Fomurz)]

Group Stage Round 1

Download map pack here

• Rice

  1. nanobii - pineapple spaceship (PORTTAYER) [I Can Fly In The Universe x1.05]
  2. Camellia (feat. Hatsune Miku) - Denkoh Sekka (RTrigger) [Onsoku]
  3. cygnus - Sacred Connection (Old Pigeon) [(4) = (7/10)(4/6)(5/10)(5/6)]
  4. Frums - Flashbacklog (nyasun) [.x((32^49 [remap]]
  5. GEMN - Fatal (Cut Ver.) (V1do-) [Retribution]
• Hybrid

  1. aa...hisuichazuke... - Tricolor*circuS ([GB]Fomurz) [1.05EditMaster]
  2. ariiol - Sorry, I'm daria emotional (Popy) [6e 69 67 68 74]
• LN

  1. Minimum - MIMI feat. wanko (-Oblivionis-) [Luminesense]
  2. VeetaCrush - Sesame Kingdom (-Oblivionis-) [Wonderland]
  3. Static-X - Brainfog (Blue_Potion) [Confused 1.0x]
• SV

  1. PSYQUI - Be There (PokeSky) [PokeSky's Future]
• Tiebreaker

  1. UKRampage - Yumenoshima feat. mami (Collab) [collab.hyw]

Qualifiers

Download map pack here

• SV

  1. Limpid - HAZARD (xxuurruuii) [Stage 1: Fluctuation]
• Rice

  1. Kenshi Yonezu - IRIS OUT (KimMui) [Stage 2: I've never gone to school either.]
  2. Yorushika - Hachigatsu, Bou, Tsukiakari ([GB]Kita, [GB]Oceanus) [Stage 3: Collaboration]
  3. Kozakai Yurie, Oomori Nichika, Hasegawa Rena - Hyper Bass(RENKA chan Drop) ([GB]Tyris) [Stage 4: Landmines]
• LN

  1. hanser & Ling Yuan yousa & Aria Zuyanaxi & Kano - Ji Xiang Hua (Cut Ver.) (Yuiesta, Popy) [Stage 5: Gong Xi Fa Cai (w/ Popy)]
  2. E0ri4 - Absolute Gate (-SoraIro-) [Stage 6: Sojour]
• Hybrid

  1. Mori Calliope, Giga & TeddyLoid - Let's End the World (RTrigger) [Stage 7: END IS NIGH]
  2. takehirotei - Haiboku no Altra Vita (V1do-) [Stage 8: Uncertainty]

Match results

Showmatch

Saturday, 10 January 2026:

Sunday, 11 January 2026:

QQ division

Finals

Detailed statistics for this round can be found here.

Friday, 2 January 2026:

Semifinals

Detailed statistics for this round can be found here.

Saturday, 27 December 2025:

Quarterfinals

Detailed statistics for this round can be found here.

Saturday, 20 December 2025:

Round of 16

Detailed statistics for this round can be found here.

Friday, 12 December 2025:

Saturday, 13 December 2025:

Sunday, 14 December 2025:

Group Stage Round 3

Detailed statistics for this round can be found here.

Saturday, 6 December 2025:

Sunday, 7 December 2025:

Group Stage Round 2

Detailed statistics for this round can be found here.

Friday, 28 November 2025:

Saturday, 29 November 2025:

Group Stage Round 1

Detailed statistics for this round can be found here.

Friday, 21 November 2025:

Saturday, 22 November 2025:

Sunday, 21 November 2025:

Discord division

Finals

Detailed statistics for this round can be found here.

Saturday, 10 January 2026:

Semifinals

Detailed statistics for this round can be found here.

Saturday, 3 January 2026:

Sunday, 4 January 2026:

Quarterfinals

Detailed statistics for this round can be found here.

Friday, 19 December 2025:

Sunday, 21 December 2025:

Round of 16

Detailed statistics for this round can be found here.

Saturday, 13 December 2025:

Sunday, 14 December 2025:

Group Stage Round 3

Detailed statistics for this round can be found here.

Saturday, 6 December 2025:

Sunday, 7 December 2025:

Group Stage Round 2

Detailed statistics for this round can be found here.

Friday, 28 November 2025:

Saturday, 29 November 2025:

Sunday, 30 November 2025:

Group Stage Round 1

Detailed statistics for this round can be found here.

Friday, 21 November 2025:

Saturday, 22 November 2025:

Sunday, 23 November 2025:

Qualifier stage

Detailed statistics for this round can be found here.

Ruleset

Tournament rules

1. The GB Cup 2025 Autumn is a captain draft–based team tournament, played in the osu!mania game mode.

   • While this competition is planned as a 3 versus 3 setup, this might change depending on the number of incoming registrations.
2. The GB Cup 2025 Autumn is divided into three stages: Qualifier, group stage and the elimination phase.
3. Beatmap scoring is based on Score V2.
4. The maps for each round will be announced by the mappool selectors on the official stream, on the Monday before the actual matches take place.
5. The match schedules for each round will be announced by the host on this page, as well as the information sheet, on the Monday before the matches take place.
6. Use of the Visual Settings to alter background dim or disable beatmap elements like storyboards and skins is allowed.

   • Custom skin elements must not be used to alter core gameplay mechanics.
7. If a game ends in a draw, it will be nullified and the map will be replayed.
8. Teams may ask for a rematch if a team member encounters technical difficulties while playing.

   • "Lag spikes" will not be considered as a valid reason to nullify a beatmap.
   • If a rematch happens, the original roster for each team during that particular beatmap must remain the same. If that is not possible, e.g. by virtue of a technical issue, both teams will be allowed to swap rosters.
   • This rule should not to be abused. Referees may veto a rematch request if they find that this is the case.
9. Disconnects within 30 seconds or 25% of the beatmap length (whichever happens first) can be rematched, at the referee's discretion, as long as it is clearly communicated in the chatroom.

   • Each team may only request to rematch one beatmap in a match with this rule. This rule should not be abused; the referee has the right to deny the request at their own discretion.
10. If a player disconnects, their scores will not be counted towards their team's total, unless adequate proof of said score is provided. The following are considered as acceptable proof:

    • Player point-of-view live stream snippets (commonly referred to as "clips" or "VODs"). The entirety of the play, along with the results screen must be clearly visible along with the affected player's score.
    • Replay files of the play, taken directly from the "Local scores" tab on the affected player's client (the timestamps must exactly match the time at which the game took place, as seen on the multiplayer lobby link).
    • Screenshots from other players taken directly in-game that show the affected player's score.

      • Screenshots from the results screen must clearly show the affected player's score. This is the preferred method.
      • Screenshots taken in-game at the time of disconnection may be accepted. Note that this method does not provide a one-to-one representation of that player's score. Using this method is not encouraged and it may be denied at the referee's discretion if the information provided is not sufficient to identify the player/score.
      • All screenshots MUST be taken using the game itself (using Shift + F12), that is, they must be hosted on the https://osu.ppy.sh/ domain. Any other form of screenshot will be denied.
      • Player scores may be derived from the official stream as a last resort, in cases where the match is streamed.
11. If less than the minimum amount of required players are present at match time, the match can be postponed for up to 10 minutes. If, after this period, there are still not enough players for either, a win by default will be declared for the team with the most members present.

    • The minimum amount of required players is the amount of players needed to play a beatmap without any vacant spots in the lobby (i.e. 3 participants must be present for the match to begin).
12. Exchanging players during games is allowed without limitations, except tournament-specific rules. See the match instructions for details.
13. The size for a team is 5.

    • This might change depending on the amount of registrations.
14. Players are expected to keep the match running fluently and without delays. Excessive match delays from the players' side may result in penalties being applied at the referee's discretion. Disrupting the match by foul play, insulting or provoking other players or staff, delaying the match, or other deliberate inappropriate misbehaviour are strictly prohibited, and will be punished accordingly at the interpretation of the referee.
15. All players and staff must be treated with respect. Instructions of the referees and the host are to be followed. Decisions labelled as final are not to be objected.
16. The multiplayer chatrooms underlie the osu! community rules. All chat rules apply to the multiplayer chatrooms, too.

    • Breaking the chat rules results in a silence. Silenced players cannot participate in multiplayer matches and must be exchanged for the time being.
17. Unexpected incidences will be handled by the host. Referees may allow higher tolerance depending on the given circumstances. This is up to their discretion.
18. Penalties for violating the tournament rules include, but are not limited to:

    • Exclusion of specific players for one beatmap.
    • Exclusion of specific players for an entire match.
    • Declaring the match as forfeited, or as a win by default for the other team.
    • Disqualification from the entire tournament.
    • Disqualification from current and future GBC series.
    • Disqualification from current and future official and community tournaments, until appealed.
19. Referees may allow, at their discretion, lower or higher tolerances for timers.
20. The host may request liveplays or recordings of individual players or teams at any point.
21. The host reserves the right to modify these rules at any moment. Any such changes will be announced in advance.
22. Players who are suspected of undermining the competitive integrity of the tournament, such as by sandbagging or match fixing, may be reported to the Tournament Committee for case-by-case review.

Tournament registration

1. Please fill this form to register.

   • Players need to choose a division according to their chat software, i.e. the Discord division or QQ division. The QQ division and Discord division will each have an independent tournament, but use same mappool.
   • Players must join this QQ group or this Discord server after register, according to their choice during registration.
   • Players must state their time zone when registering.
2. To ensure valid and serious registrations, every registered user will be manually checked by the host.

   • To be successfully registered, a player must not have violated the osu! community rules within the last 12 months.
   • There are no rank limitations for this tournament. If there are too many registrants, some of the high-level registrants may be removed from the main tournament and be invited to participate in the showmatch instead.
3. A list of all successfully registered players will be published after the registration phase, and will then participate in the drafting phase.
4. Tournament staff members must not participate as players in the tournament.

Qualifier instructions

1. In the Qualifier stage, all players will play a specific mappool designed by the mappool selectors and mappool helpers.

   • All players will be ranked in the Qualifier together. Based on the total number of applicants, the organiser will allow a number of top players from the Qualifiers to enter the drafting phase, and the other players will be eliminated. If a qualified player quits, they may be replaced by someone else.
2. The Qualifier mappool contains 8 maps, all of which will use FreeMod rules, organised as such:

   • SV: 1 beatmap
   • Rice: 3 beatmaps
   • LN 2 beatmaps
   • Hybrid: 2 beatmaps
3. Players will play the mappool at least once (and up to twice) at a designated time. Their best combined score, meaning the total of each beatmap's best score, will be the final result.
4. The mappool will be played in the following order: SV1, RC1, RC2, RC3, LN1, LN2, HB1, HB2. Players may not ask to play the pool in any other order.

   • Player may skip playing any beatmap on their second run.
5. There will be an optional 5-minute break in between the first and second playthrough of the mappool.
6. We suggest players not to broadcast or share their results to avoid seed manipulation.
7. Qualifier stage results will be used for seeding and for choosing captains.
8. The best-performing players will advance to drafting phase.

   • Disrupting the match by foul play or seed manipulation will result in disqualification, and any such players will be announced before the drafting phase takes place.
9. Players will use same multiplayer rooms if they select same time to play the Qualifiers. It is prohibited to abort a match with the reason of a technical problem, in which case the score will be recorded as is.

Stage instructions

1. Following the Qualifier stage, all players will participate in a phase to form teams, called the drafting phase. Both divisions will have independent drafting phases. All unpicked players will be eliminated from the tournament.
2. Following the drafting phase, a group stage will be played in both divisions. Each group includes 6 teams and will play 3 rounds. The top 4 of each group (from a total of 16 teams per division) will advance to the elimination phase, with the other teams eliminated.
3. Following the group stage, a single-elimination stage will be played in both divisions.
4. All teams that lose in the elimination phase will be eliminated from the tournament and the last team will be the winner.
5. This tournament doesn't have the bronze medal match. As such, both teams that get eliminated during the Seminfinals will receive same prize.

Drafting phase instructions

1. The host will declare one captain for each team 24 hours before the drafting phase.

   • Drafting order depends on the captain's seed, lower seed pick first.
   • Captains are selected by their performance during the Qualifiers.
   • Non-captains will join a group of players waiting to join a team, herein called a "player pool".
   • The drafting phase for the two divisions will be held separately, and the number of teams will be determined by the number of players who have passed the Qualifier round in corresponding division.
2. Captains decide their team members during the drafting phase.
3. There will be a 120-second planning phase before the picking phase starts.
4. During the picking phase, the pick order consists of 2 phases that repeat twice, such that every captain gets to choose 4 players.

   • During phase 1 and 3, picks start from the 24th to the 1st captain.
   • During phase 2 and 4, picks start from the 1st to the 24th captain.
   • This might change depending on the number of incoming registrations.
5. Each captain has 60 seconds to pick one player from the player pool on their turn.

   • If the captain does not pick a player within 60 seconds, a random player from the remaining player pool will be assigned to their team.
6. If the captain picks a player, the pick time still has to elapse before the next captain's turn starts.
7. After each phase, there is a 60-second break before the next phase starts.
8. At all times, the captains may communicate with each other via multiplayer chatrooms or voice chat.

   • Other players will be muted during the drafting phase.
9. After the drafting phase, captains may choose, with the approval of the host, to delegate their role to other prospective team members.
10. Captains may also choose to rename their team name after the drafting phase.

    • The default name of team is: {Y}{X}, with {Y} being the division, and {X} being the seed of captain.
    • Team names cannot be longer than 24 characters (a Chinese character is considered as 2).
11. Bad behaviour during the drafting phase will be seen as disrupting the match by foul play.
12. To prevent draft manipulation, players are strictly prohibited from contacting captains before the draft phase.

Regular phase instructions

1. The regular phase will be divided into two divisions, the Discord division and the QQ division.

   • Players can choose the division and participate in the team of the corresponding division. Players must ensure that they can use the chat tool of the corresponding division and keep the chat open.
2. Group stage has 3 rounds. Players will face against 3 other teams during this stage. Since each group has 6 teams, they will not be matched against all opponents in their respective group.

   • The group stage of both divisions will be held separately. Each division will have 16 teams advance to the elimination phase.
   • The top 4 of each group will advance.
3. The final ranking of the Swiss round will be determined by the following criteria in order:

   • Most matches won
   • Highest beatmap difference (beatmap wins - beatmap losses)
   • Highest Buchholz score¹
   • Head-to-head result (if possible)
   • Most beatmaps won
   • Fewest beatmaps lost
   • Sum of all score differences of each beatmap (∑(total score - opponent's total score) for each beatmap played in the group stage)
   • Dice roll
4. The team list of each group will be decided by a draw, and so will the brackets for the group stage.

   • According to the seed of captains, seed 1-8 as A, 9-16 as B, 17-24 as C, each group includes double A & B & C teams, 6 teams in total.
   • Round 1 bracket is A1 vs A2, B1 vs B2, C1 vs C2
   • Round 2 bracket is A1 vs B2, B1 vs C1, C2 vs A2
   • Round 3 bracket is A1 vs C1, B1 vs A2, C2 vs B2
5. The results from the group stage will also be used for the elimination quarter. However, the bracket and match will be decided by a draw.

   • Each division is divided into 4 quarters. Teams from the same group won't be divided into same quarter.
   • In each division, there will be a group #1 team vs a group #4 team, and a group #2 team vs a group #3 team.

Win conditions

• In the Qualifier stage, players need to rank high enough to advance.
• In the group stage round 1 and round 2, teams need to win 5 maps to win a match (best of 9).
• In the group stage round 3 and the Round of 16, teams need to win 6 maps to win a match (best of 11).
• In the Quarterfinals, Semifinals and Finals, teams need to win 7 maps to win a match (best-of-13).

Match procedures

1. A referee will create a multiplayer room 10 minutes before the scheduled match time. Players must join the lobby in that period.

   • The room settings are Game mode: "osu!mania", Team mode: "Team Vs" and Score mode: "ScoreV2". The room name must follow the pattern of GBC 2025 Autumn: ({TeamRed}) vs ({TeamBlue}).
   • The team mentioned first in the room name must be the red team, and the team mentioned second in the room name must be the blue team.
2. Each captain can protect one beatmap from the pool. These beatmaps cannot be banned. Then, each captain can ban one beatmap from the pool. These beatmaps cannot be picked by any team for the entire duration of the match.
3. Both captains will alternate picking a beatmap from the mappool.

   • SV slot map can't be protected or banned。
4. Each captain must use !roll once in #multiplayer.

   • The winner of the !roll may choose to pick first or ban first in the match. The other choice will be used by loser of the roll. The team who picks first will also protect first, and the others will ban first.
5. After each pick, both captains may ban one of the opposing team members from playing the beatmap in a match, except during tiebreakers.

   • Any player can only be banned like this once per match.
   • Only players who have already played in the match can be banned.
   • No players can be banned at SV slot map。
   • The team that picks beatmaps first cannot ban players during the first 2 rounds.

     • As a consequence of the earlier rules, no teams are allowed to ban players during the first round since no one has finished playing any beatmaps.
   • Picks and bans should be sent in the same message. If the ban is delayed, or the message causes a disagreement or misunderstanding, the referee has the right to ignore the ban.
6. The team currently picking a map will have 2 minutes to choose beatmap and ban an opposing player. Then, the other team will have 1 minute to ban an opposing player. Once this is done teams will have 2 minutes to get ready.

   • A team can request a timeout during this period. The timeout lasts 2 minutes.
   • The tactical timeout may be called on a tiebreaker.
7. If a team takes more time than allowed, the procedures adopted will be as follows:

   • For the first occurrence:

     • The team will receive a verbal warning from the referee.
   • On subsequent occurrences:

     • For bans of opposing players, the captain forfeits the ban.
     • For map bans, the captain forfeits the ban.
     • For map picks, a random map will be chosen from the mappool using !roll X, where X is the number of maps that were neither picked nor banned, excluding the tiebreaker.
     • For a ready timer, the referee will issue the !mp start 10 command, regardless of how many players from each team are present in the lobby, using !mp kick on any extra players for each team, starting from the top (i.e. the first valid player combination for each team will be forced to play the pick). The results for such games are to be taken as is.
   • Repeat offenders may receive further sanctions from the host.

Mappool instructions

1. There will be six separate mappools.
2. Each mappool consists of a fixed amount of maps each stage which will all be played under FreeMod conditions. This means that there is a unique FreeMod bracket.
3. The mappool sizes are as follows:

   • Qualifiers: 8 beatmaps.
   • Mappool in group stage round 1 & 2: 12 beatmaps.
   • Mappool in group stage round 3 & Round of 16 : 14 beatmaps.
   • Mappool in the Quarterfinals, Semifinals and Finals: 16 beatmaps.
4. Each mappool has one tiebreaker, except for the Qualifiers. The tiebreaker will be played under FreeMod conditions.
5. Possible mod choices for the FreeMod bracket are NoFail, Hidden, Fade In, Flashlight, and Mirror.
6. The Semifinals and the Finals will use the same mappool.

Scheduling information

1. Each stage will be held on a single weekend.
2. Matches in Qualifiers will be held during specific time slots proposed by the tournament staff. Each player is free to choose a time slot in which they want to play.
3. All matches will be held between Friday 18:00 and Sunday 23:59 (UTC+8).

   • Rescheduling a match to a weekday is only permitted if absolutely necessary, both teams request and agree to it, and staff members are available.
4. Scheduling will be handled by the host. Schedules will be released on the Monday before the first match of the stage. The host will try to create a schedule that respects all participants' preferences.

   • Please inform the host before Sunday if you expect a specific time slot to be unavailable in the following week. The host will try to accommodate all wishes, but makes no promises.
5. Reschedules will only be considered if both teams agree to a time and communicate it to the tournament staff, before Thursday 23:59 UTC+8 of the week the match is to take place on.

   • Reschedules may only be requested by a team captain.
   • Do not ask for reschedule unless it is absolutely needed. The host reserves the right to deny any reschedule requests.
6. Captains are responsible for their team's availability.

Notes