Last updated: 3 October 2026
Reviewed by Jordan Morley, FA Level 2 Football Coach
Swim pace is the time taken to cover a fixed distance, almost always expressed per 100 metres (or per 100 yards in the US). It is the swimming equivalent of running pace. Knowing your pace lets you plan sets, hold even splits and compare sessions. Fitness swimmers often sit around 2:00–2:30 per 100m, while competitive swimmers hold well under 1:30 per 100m over distance.
- Time per 100m or 100yd
- Swimming's version of running pace
- Fitness swimmers ~2:00–2:30/100m
- Used to plan sets and even splits
In practice
Swim pace is typically tracked per 100m (rather than per kilometre, as in running) since pool-based training is naturally organized around standard pool lengths, and most structured swim sets are prescribed as a target per-100m pace derived from a recent time trial — coaches then build an entire session's intervals around percentages of that baseline pace to target specific aerobic or anaerobic training zones.
FAQ
Why is swimming pace usually measured per 100m instead of per km?
Pool training is naturally organized around standard pool lengths (25m or 50m), making per-100m pace a more practical, intuitive unit for prescribing and tracking swim sets than per-kilometre pace.
How do coaches use pace to structure a swim training session?
A baseline pace (often derived from a recent time trial, like critical swim speed) anchors the session, with different sets prescribed as percentages faster or slower than that baseline to target specific aerobic or anaerobic training zones.