How long does a triathlon take? A typical age-grouper finishes a 70.3 in just under 6 hours and a full Ironman in 12–13 hours. These averages, drawn from large sets of race results, show where you stand.
How to use the Average Triathlon Finish Times Calculator
- Race type
- Sex
- Your time (optional) – hours
- minutes
- seconds
Averages are approximate and vary with course and conditions; splits are proportional estimates. Everything is calculated in your browser.
How it works
Choose the race type and sex, and optionally enter your own finish time.
Tips
- Practise transitions – they count towards your total time.
- Train your race-day nutrition as carefully as your fitness.
- Heart rate zones differ slightly between swimming, cycling and running.
- Everything is calculated in your browser.
Common mistakes to avoid
- Going too hard on the bike and suffering on the run.
- Trying new food or gear on race day.
- Ignoring open-water skills.
Inputs explained
| Field | What to enter |
|---|---|
| Race type | Choose one: Sprint (750 m / 20 km / 5 km), Olympic (1.5 km / 40 km / 10 km), Half Ironman 70.3 (1.9 km / 90 km / 21.1 km), Ironman (3.8 km / 180 km / 42.2 km) |
| Sex | Choose one: Men, Women |
| Your time (optional) – hours | A number |
| minutes | A number |
| seconds | A number |
What each result means
- Swim (approx.) = [Average finish time]×0.1106
- Bike (approx.) = [Average finish time]×0.497
- Run (approx.) = [Average finish time]×0.3536
- Transitions T1 + T2 (approx.) = [Average finish time]×0.0389
Formula
Average time from published race-result analyses · Splits ≈ swim 11%, T1 + T2 4%, bike 50%, run 35% of the total · Difference = your time − average
Worked example
Inputs — Race type: Half Ironman 70.3 (1.9 km / 90 km / 21.1 km); Sex: Men; Your time (optional) – hours: 0; minutes: 0; seconds: 0.
Results — Average finish time = 5:51:25; Swim (approx.) = 38:52; Bike (approx.) = 2:54:39; Run (approx.) = 2:04:16; Transitions T1 + T2 (approx.) = 13:40; Your time compared with average = 0 %; Verdict = Enter your time to compare.
Key terms
- T1 / T2
- Swim-to-bike and bike-to-run transitions.
Frequently asked questions
What is a good 70.3 time?
Under 5:30 is good for age-group men, under 6:00 for women.
How long does an Ironman take?
Around 12–13 hours on average; cut-off is 17 hours.
Why are transitions included?
T1 and T2 count towards your official time.
Do courses differ?
Yes – hilly or hot races are much slower, so compare like with like.