Triathlon Split Time Target Calculator
Set target split times for each triathlon leg.
Plan your swim, bike, and run splits to reach your goal finish time.
Race planning in triathlon means knowing not just your goal finish time, but how to distribute effort across the swim, T1, bike, T2, and run legs.
Standard triathlon distances and typical finish times:
| Format | Swim | Bike | Run | Beginner | Competitive |
|---|---|---|---|---|---|
| Sprint | 750m | 20km | 5km | 1:30-2:00 | 55-75 min |
| Olympic | 1500m | 40km | 10km | 2:30-3:30 | 1:50-2:20 |
| Half Ironman | 1900m | 90km | 21km | 5:30-7:00 | 4:00-5:00 |
| Ironman | 3800m | 180km | 42km | 12:00-16:00 | 8:30-11:00 |
Typical split distributions (% of total race time):
- Swim: 10–15% of total
- T1: 2–4% of total
- Bike: 45–55% of total
- T2: 1–2% of total
- Run: 30–38% of total
Pacing philosophy: The bike sets up the run. Many triathletes race the bike at 85–90% of max effort and then find the run impossible. A conservative bike lets you run at close to standalone pace. The goal is the fastest TOTAL time, not the fastest single split.
Worked example (Olympic target 2:15:00):
- Swim target (13%): ~17:35
- T1 (2%): ~2:42
- Bike target (50%): ~1:07:30
- T2 (1.5%): ~2:02
- Run target (33.5%): ~45:11
Adjust percentages based on your relative strengths — a strong cyclist will give more time to bike, a strong runner will push for a faster run split.