The qualifiers for Marble League 2021 will take place sometime in 2021. 20 teams will enter the qualifiers for a chance at a spot in the competition, however only 12 will make it through alongside the four auto-qualified teams from Marble League 2020.
The Savage Speeders, O'rangers, Minty Maniacs, and Crazy Cat's Eyes are already confirmed to auto-qualify for the main league, so they will not be competing.
The Turtle Sliders, Jawbreakers, Limers, and Snowballs will not be participating to the ML2021 Qualifiers or the ML2021 main event due to getting bottom 4 in the Marble League Showdown 2020.
| Teams | Method of Qualification |
|---|---|
| Midnight Wisps | Marble League 2020 4th Place |
| Hazers | Marble League 2020 6th Place |
| Team Galactic | Marble League 2020 7th Place |
| Team Momo | Marble League 2020 8th Place |
| Raspberry Racers | Marble League 2020 9th Place |
| Oceanics | Marble League 2020 10th Place |
| Bumblebees | Marble League 2020 11th Place |
| Green Ducks | Marble League 2020 12th Place |
| Thunderbolts | Marble League 2020 13th Place |
| Mellow Yellow | Marble League 2020 14th Place |
| Balls of Chaos | Marble League 2020 15th Place |
| Hornets | Marble League 2020 16th Place |
| Kobalts | Marble League Showdown 2020 1st Place |
| Jungle Jumpers | Marble League Showdown 2020 2nd Place |
| Chocolatiers | Marble League Showdown 2020 3rd Place |
| Shining Swarm | Marble League Showdown 2020 4th Place |
| Pinkies | Marble League Showdown 2020 5th Place |
| Indigo Stars | Marble League Showdown 2020 6th Place |
| Team Primary | Marble League Showdown 2020 7th Place |
| Rojo Rollers | Marble League Showdown 2020 8th Place |