Quick answer: the main base and side base are the two halves of a two-base stunt. The main base typically leads timing and takes primary control, particularly on single-leg positions, while the side base focuses on matching, stabilising and assisting.
| Main Base | Side Base | |
|---|---|---|
| Typical focus | Leads timing, primary control | Matches and stabilises |
| Common single-leg role | Supports the standing foot | Assists and balances |
| Physical demand | Similar overall strength demand | Similar overall strength demand |
The Core Difference
Both roles fall under base, but they're not identical jobs. On a two-leg stunt like a prep or extension, the split in responsibility is often fairly even. On a single-leg stunt like a liberty, the difference becomes clearer - the main base takes primary responsibility for the standing foot, while the side base supports and stabilises.
Why the Split Exists
Splitting responsibility this way gives a stunt group a clear leader for timing and control, while still sharing the physical load and the responsibility for correcting small balance shifts between two athletes.
Can an Athlete Do Both?
Yes, and most experienced bases do - which side they take on is often decided by the specific stunt, the flyer's preference, or simply which side of the formation the stunt is positioned in.
Related Roles
See Flyer for the role both bases support, and Base vs Back Spot for how basing compares with the role behind the stunt.