Spring 2026 At a Glance

Many of these documents are only available to MOSEF coaches listed on a an active school profile.
If you need to request access, please be sure to identify your school in the request!
If you are not listed on the profile, you will be asked to have your general manager add you before you will be added.

Titles

High School Varsity/JV

  • Mario Kart 8 4v4

  • Marvel Rivals

  • Rocket League 3s

  • SSBU Crew Battles

Middle School Championship/Competitive

  • Mario Kart 8 4v4 (inc. Elementary)

  • Rocket League 3s (13+ only)

  • SSBU Crew Battles (inc. Elementary)

Star Division

  • Switch Sports Bowling

Game Rules

Important Dates

Preseason Week 1: February 9-13

Registration due: February 13 (includes rosters and quizzes)

Preseason Week 2: February 16-20 (matches on February 16 will be rescheduled for February 18)

Season Schedules Available: February 20

Regular season: February 23-April 10

Reschedule Requests Due: February 27

Buffer week: April 13-17

Postseason: April 20-May 8 (playoffs and opening rounds of state)

Spring Showdown: May 15-16

Season Contacts

Mario Kart 8 4v4:

TO: Amanda Galloway, T.S. Hill Middle School
rblamanda / mariokart@mosef.org

Assistant TO: Gary Micke, Potosi High School
lordsaitamaog

Marvel Rivals:

TO: Kevin Clevenger, Blue Springs High School
drego84 / marvelrivals@mosef.org

Assistant TO: Jacob Fletcher, DCR1
bumpysquirrel

Rocket League 3s:

TO: Sean Lebron, Doniphan R1
doniphanr1seanl / rocketleague@mosef.org

Assistant TO: unfilled

SSBU Crew Battles:

TO: Amy Harris, Hart Career Center
hcc_queen__honeybee / smash@mosef.org

Assistant TO: Collin Todd, Webster Groves High School
colontoad

Star Division

TO: Amy Harris, Hart Career Center
hcc_queen__honeybee / smash@mosef.org

Assistant TO: unfilled

Registration

REGISTRATION IS CLOSED

To register, you will need your quiz score and your roster. These items are available on the registration page!

Confirm your registration

Copy the registration checklist

preseason

It is mandatory for each team to participate in at least one week of preseason! Teams who do not participate will not be scheduled for the regular season.

You must sign up to be scheduled to ensure everyone has an opponent that will be present.

Mario Kart 8 4v4 (Varsity: Thursdays; JV: Wednesdays; MS/Elementary: Tuesdays)

Marvel Rivals (Varsity: Thursdays; JV: Mondays)

Rocket League 3s (Varsity: Tuesdays; JV: Wednesdays; MS: Mondays)

SSBU Crew Battles (Varsity: Mondays; JV: Tuesdays; MS/Elementary: Thursdays)

Reschedule Guidelines

All regular season reschedules for existing dates must be documented by February 27 (form closed).

  • Applies to things like spring break, PD days, school plays, band concerts, etc.

  • Does NOT apply to weekly events like other sports/activities

  • Both coaches must agree. 

  • If a reschedule date cannot be agreed on, the school who cannot make default time will forfeit.

  • Reschedules for existing dates requested after February 27 will not be approved unless there are extenuating circumstances ("We forgot" doesn't count!).

  • For emergency reschedules (inclement weather, illness, infrastructure failure, etc.), contact the TO and the opposing coach immediately. 

    • These will be approved on a case-by-case basis.

  • Teams forfeiting more than one match will be ineligible for playoffs.

All rescheduled matches must be completed no later than April 17.

Regular Season

Mondays: (matches on February 16 will be rescheduled for February 18)

Tuesday:

Wednesday:

Thursday:

Friday:

  • Switch Sports Bowling: Scoresheet (asynchronous due date)

CTE CHallenges

The following CTE Challenges are due during the spring season:

  • March 27

    • Graphic Design: MOSEF Season Graphics (Spring)

    • Video Editing

  • April 10

    • Event Planning (Spring)

    • Graphic Design: Team Stream Package (Spring)

    • Shoutcasting (Spring)

  • April 25

    • Programming

PostSeason

The top team from each Varsity and MS Championship section will move on to the Spring Showdown. The top four teams in each class will attend the in-person Spring Showdown. If there are more than four sections in your class, you will play the first round of the Spring Showdown online during the postseason window.

Postseason matches will take place on the same day of the week as regular season matches.

All playoff brackets will be seeded by the season record! Please see game rules for tiebreaker explanations.

Postseason brackets will be posted at the conclusion of the regular season.

Mondays:

  • Rocket League MS: Bracket

  • Smash Crews Varsity: Bracket Class 1 • Bracket Class 2

Tuesday:

  • Mario Kart MS Championship: Bracket

  • Rocket League Varsity: Bracket

Thursday:

  • Mario Kart Varsity: Bracket

  • Marvel Rivals Varsity: Bracket Class 1 • Bracket Class 2

  • Smash Crews MS Championship: Bracket