Work out triathlon split times instantly with clear inputs, formula shown and shareable results.
A triathlon result is the sum of three legs plus both transitions, which are timed and often decide close races. An Olympic-distance split of 30, 75 and 50 minutes with 4 minutes of transitions totals 2:39:00, with the bike accounting for 47% of the time - which is why bike fitness usually gives the largest return on training.
Total time
total = swim + T1 + bike + T2 + run
Leg share
share = leg time / total time
This is an estimate from population-average equations, not a medical or diagnostic assessment. Individual results vary with genetics, training history and technique. Seek advice from a qualified coach or clinician before making significant changes to training.
Two to five minutes for age-group athletes and under a minute for professionals. It is often the cheapest place to find time.
The bike takes the most time, but the run decides most races because it is where fatigue from the first two legs shows.