Mario Kart 8 Duos Game Manual
Fall 2025​
THIS TOURNAMENT IS NOT AFFILIATED WITH, SANCTIONED OR SPONSORED BY NINTENDO OR ANY OTHER GAME DEVELOPER OR PLATFORM.
Competition​
Platform & Format Requirements
Players​
Roster​
- A team roster must consist of at least 2 players (more is strongly advised) and no more than 4 players
- A player is allowed to represent only 1 team's roster in the same MiHSEF Mario Kart 8 competition
- Any number of players may be substituted before a match, or between heats, as long as they are officially rostered on the LeagueOS team
- Teams must be created in LeagueOS, fully rostered with a minimum of 2 players
Minimum to Compete​
- Teams must provide a minimum of 1 player for all matches
- If a team is unable to field the required number of players for any races, they will forfeit the remainder of the match
- Teams may agree to play out matches in good faith
Pre-Match​
Lobby Setup
Lobby​
- There will be 4 teams of 2 players in a lobby (total of 8 players)
- A match will cover 3 heats of 4 races in the same lobby
- The highest seeded team will create the lobby and provide the room name and code
- The lobby will be set up as follows:
- Game Style: 150cc Race
- Teams: No Teams
- Items: Normal Items
- COM: No COM
- Race Count: 4 Races
Character/Kart Selection Rules
Character/Kart Selection​
- During kart selection players must have smart steering turned off
- During kart selection players must have auto acceleration turned off
- Players may change karts/characters before the match and/or between heats
- Players cannot change karts/characters during a heat
Player Names​
- Each team must declare the usernames of their 2 players in the LeagueOS match chat prior to the beginning of the match
- If a team substitutes a new user between heats, the new user must be declared in the LeagueOS match chat
Gameplay​
Map Selection Penalty
Map Selection​
- All players must select "Random" during track selection to ensure fairness
- Warning: A 10-point deduction will be applied if a player fails to comply
Heats & Transitions
Heats​
- Teams will be given a maximum of 5 minutes to make any desired substitutions, kart changes, or character changes between heats
- At the end of 5 minutes play must continue (or sooner if all teams agree)
Scoring​
- Match: Accumulation of both players' points after a match
- Season: Accumulation of both players' points after a season
- Playoff berths: Based upon season scoring
LeagueOS Scoring​
- 3 Games will be displayed in LeagueOS (one for each heat)
- For each heat: Add together the total point value of your two competitors
- Determine team placement (1st, 2nd, 3rd, or 4th)
- Input placement number into LeagueOS (1 for 1st, 2 for 2nd, etc.)
- Rankings based on lowest team scores (drop two highest placements to compensate for missed weeks)
- Absent players earn zero points for each heat
- Absent teams automatically get 4th place (4 points)
Stoppage of Play​
Player Disconnect Rules
Player Connectivity​
- Should a player disconnect from the game less than 60 seconds into the first race or before the first lap, the game can be restarted if teams agree
- Should a player disconnect after the first lap or past 60 seconds, they may rejoin but the match cannot be restarted or paused
Technical Issues & Corrections
Technical Issues​
- In the event incorrect players are present or incorrect settings are loaded, the match should be stopped and reset
- If a game is completed before realizing the error, the game results stand
- Teams will rectify any issues prior to starting the next game
Restrictions​
Code of Conduct​
- Players are prohibited from cooperating with other teams to gain an advantage, including:
- Voice communication
- Teaming in-game
- Any other form of collusion
- Violations will result in immediate disqualification and potential further punishment
Anti-Cheating Enforcement
Hacking/Exploits​
- Hacking or using any form of exploitation will lead to immediate disqualification and banning
- The host must close the room, remove the offender, and reopen the room for a fair race
Schedule​
High School Schedule​
| Match | Date |
|---|---|
| Pre-Season (2 weeks) | Sep 15 & 22, 2025 |
| Week 1 | Sep 29, 2025 |
| Week 2 | Oct 6, 2025 |
| Week 3 | Oct 13, 2025 |
| Week 4 | Oct 20, 2025 |
| Week 5 | Oct 27, 2025 |
| Week 6 | Nov 3, 2025 |
| Week 7 | Nov 10, 2025 |
| Post-season: Play-Ins | Nov 17, 2025 |
| Post-season: Finals | Dec 13, 2025 |
Resources​
- Official Mario Kart 8 Website
- MiHSEF Discord - For tournament updates and support
Date Approved by Board: November 19, 2025