The following race classes and distances will be at the 2011 Marsh Mash:
- Adult/Child Rec Class 8km
- Rec kayak  8km
- Outrigger 12km
- Novice Outrigger 8km
- C2 Mixed 22km
- C2 Men's 22km
- C2 Junior 12km
- ICF World Team Qualifier 22km