Triathlon Swim Pace Calculator
Calculate your triathlon swim pace per 100m or 100yd.
Convert total swim time to pace and estimate finish time.
Swim pace in triathlon is typically expressed as minutes:seconds per 100 meters (or 100 yards). Open water pace is usually 5–15% slower than pool pace due to sighting, navigation, wetsuit differences, and drafting.
Standard triathlon swim distances:
- Sprint: 750 m (pool or open water)
- Olympic: 1,500 m
- Half Ironman (70.3): 1,900 m
- Ironman: 3,800 m
Pace formula: Pace per 100m = (total time in seconds) / (distance in meters / 100)
Worked example: Olympic distance swim (1,500 m) completed in 28 minutes (1,680 seconds): Pace = 1,680 / 15 = 112 seconds per 100m = 1:52 per 100m
Typical triathlete swim paces:
- Elite / professional: 55–65 sec/100m
- Age group competitive: 1:20–1:40 per 100m
- Recreational finisher: 1:50–2:30 per 100m
- Beginner: 2:30–3:30 per 100m
Open water vs. pool: Most triathletes are 10–20 seconds per 100m slower in open water. Factor this into race prediction. Wetsuit use (where legal) typically adds 5–10 seconds of speed per 100m due to added buoyancy.
Sighting drills: Every 8–12 strokes in open water, lift your head to sight the buoys. This adds a small time cost but prevents navigation mistakes that add far more distance.