INFORMATION
CONDENSED INFO
The 2024 edition of Corsace Open, one of osu!'s most prestigious unofficial 4v4 tournaments. Organized by Corsace, this open rank tournament gathers some of the most talented players from around the world, serving as a testament to the skill, strategy, and teamwork inherent in the rhythm game community.
GENERAL INFORMATION

  • Corsace Open is a 4v4, international tournament open to players of all ranks
  • All matches are played using Team VS, ScoreV2
  • All scheduling shall be done in UTC
  • All matches must take place between Friday 23:59 UTC and Sunday 23:59 UTC
  • Reschedules must be submitted before Thursdays at 23:59 UTC the week a round is to take place. Exceptions are made on a case-by-case basis
  • Staff are prohibited from playing and/or acting as captains in the tournament with the exception of streamers, commentators, and GFX artists
PRIZES

  • 1st Place:
    • 50% of prizepool split among players and their captain how they wish
    • (Pending) Corsace Open 1st place badge
  • 2nd Place:
    • 30% of prizepool split among players and their captain how they wish
    • (Pending) Corsace Open 2nd place badge
  • 3rd Place:
    • 20% of prizepool split among players and their captain how they wish
    • (Pending) Corsace Open 3rd place badge
TEAM STRUCTURE

  • Teams may consist of 6 - 8 players
  • Team names may consist of 3 - 20 characters with acronyms of 2 - 4 letters along with a team photo
    • Inappropriate pictures, names, and/or acronyms are subject to change at the discretion of administration
  • Teams must designate a single timezone to be used for scheduling (EX: UTC-7, UTC+2, UTC-4, etc.)
    • Teams shall be guaranteed a match time within the hours of 10:00 - 22:00 in accordance with the timezone used when registering
      • Teams are expected to be available for 4 weekends to play 1 - 3 matches that last 45 - 90 minutes within the 10:00 - 22:00 time frame for Saturday and Sunday
      • Due to the guaranteed time, schedules will be made with streamers in mind
QUALIFIERS PROCEDURES

  • Teams shall have their own lobby freely scheduled by themselves, and run by the Corsace bot
  • The deadline to play qualifiers to complete registration is July 28 at 23:59 UTC
  • The mappool consists of 10 maps (3 NM / 2 HD / 2 HR / 3 DT) and shall be played ONCE, starting from NM1 and ending in DT3
  • 90 second timers are used for teams to swap members and ready up
  • Teams complete registration by playing qualifiers
    • Rosters are locked after play. Changes are not allowed under any circumstance
    • Due to this process, teams with players who are screened out will have that player's scores voided
  • Qualifier results are calculated using z-score

SEEDING

  • 16 teams qualify and are split into two tiers
  • Tier 1 (Seeds 1 - 4)
    • Advances and is placed into the Upper Bracket in Week 2
    • Does not play in Week 1
  • Tier 2 (Seeds 5 - 16)
    • Moves on to Week 1, it is a group stage consisting of 4 groups of 3 teams
TOURNAMENT STRUCTURE

The tournament consists of 4 stages of play: Week 1, Week 2, Week 3, Week 4

WEEK 1 (AUG 10 - 11)

  • Groups (12 teams, 12 matches)
    • Group A (Seeds 5, 12, 13)
    • Group B (Seeds 6, 11, 14)
    • Group C (Seeds 7, 10, 15)
    • Group D (Seeds 8, 9, 16)
  • Placements:
    • Group placement and W2 seeding is in the following precedence:
      • Match W/L Ratio
      • Points Won
      • Difference in Points (Points Won - Points Lost)
    • 1st: Moves into the Middle Bracket of Week 2
    • 2nd: Moves into the Lower Bracket of Week 3
    • 3rd: ELIMINATED
  • Matches are Best of 11 with 2 bans and 1 protect
  • Mappool size (17 maps): 5 NM / 3 HD / 3 HR / 3 DT / 2 FM / 1 TB

WEEK 2 (AUG 17 - 18)

  • Triple bracket (Upper, Middle, Lower)
  • Upper bracket: Seeds 1 - 4
  • Middle bracket: 1st out of Groups
  • Lower bracket: 2nd out of Groups
  • Round 1 (12 teams, 6 matches)
    • LB Losers are ELIMINATED
  • Round 2 (8 teams, 4 matches)
    • UB losers go against MB winners
    • MB losers go against LB winners
    • LB losers are ELIMINATED
  • Matches are Best of 11 with 2 bans and 1 protect
  • Mappool size (17 maps): 5 NM / 3 HD / 3 HR / 3 DT / 2 FM / 1 TB

WEEK 3 (AUG 24 - 25)

  • Double bracket
  • Round 1 (8 teams, 4 matches)
    • LB Losers are ELIMINATED
  • Round 2 (6 teams, 3 matches)
    • UB winners go against each other
    • UB losers go against LB winners
    • LB losers are ELIMINATED
  • Matches are Best of 13 with 2 bans and 1 protect
  • Mappool size (20 maps): 5 NM / 4 HD / 4 HR / 4 DT / 2 FM / 1 TB

WEEK 4 (AUG 31 - SEP 1)

  • Single bracket
  • Matches are Best of 13 with 2 bans and 1 protect
  • Mappool size (20 maps): 5 NM / 4 HD / 4 HR / 4 DT / 2 FM / 1 TB
MATCH PROCEDURES

  • A referee will create a match at 10 minutes prior to match time
  • There are no warmups
  • Teams are expected to show up on time and prepared to matches
    • Captains are expected to be online at least 5 minutes before the scheduled match time to receive invites from referees
  • Teams that fail to field a roster 5 minutes after the scheduled match time shall forfeit
  • There are no restrictions on picks or bans
  • NF is enforced on all maps
  • Captains will roll in matches. The winner will pick first, ban second, and protect second
  • Teams have 1 protected map each
    • Protected maps cannot be banned but can be picked by either team
  • Teams have 2 bans throughout bracket stage
  • Each set of bans shall have teams banning 1 map
    • The first set of bans shall be at the start of the match
    • The second set of bans shall be after 4 maps are played
    • Ban order is ABAB
  • Teams have 90 seconds to declare picks, bans, and protects
    • If a team takes more time than allotted for any of the above actions, the procedures adopted will be as follows:
      • First occurrence: A 15-second extension is given along with a verbal warning
      • On subsequent occurrences: A random map will be chosen from the mappool using !roll X, where X is the number of beatmaps remaining in the mappool
  • Teams have 90 seconds to swap teammates and lock in their roster
    • If a team takes more time than allotted for either action, the procedures adopted will be as follows:
      • First occurrence: A 15-second extension is given along with a verbal warning
      • On subsequent occurrences: the referee will issue the !mp start 10 command

FREEMOD RULES

  • FreeMod Rules: Allowed mods are HD and HR. Each team must have at least one player with HD and one player with HR (or HDHR)
    • Tiebreakers are played with FreeMod enabled, however, do not require players to use a mod

DISCONNECTIONS

  • In the event of a disconnection, an abort/replay may be called if it occurred within the first 30 seconds of the map. Other than that, common sense will be applied. If proof exists of the disconnected player's score (or a rough estimate of their hypothetical score if they finished the map), it will be used. If it is at all ambiguous, the player’s score is considered forfeit.
  • Disconnections are considered to be unexpected, game-breaking events out of a player’s control (i.e. keyboard/tablet/mouse malfunction, system failure, internet disconnect, etc). Offset, background dim, leaderboard presence, etc. ARE NOT considered valid reasons to call for an abort/replay as players may fix these on their own time.
REPORT TOURNAMENTS HERE

*all rules are subject to change for clarification and/or adjustments