Triathlon Distances

The Basics — Triathlon Distances 101

Swim

Bike

Run

Sprint

750 m
(0.47 mi)

20 km
(12.4 mi)

5 km
(3.1 mi)

For pool-based races a 400 or 500 m swim is common.

Olympic

1.5 km
(0.93 mi)

40 km
(24.8 mi)

10 km
(6.2 mi)

Aslo known as “international distance”, “standard course”, or “short course”.

Half

1.93 km
(1.2 mi)

90 km
(56 mi)

21.09 km
(13.1 mi)

Also known as “middle distance”, “70.3” (total miles traveled), or “half-ironman”.

Full

3.86 km
(2.4 mi)

180 km
(112 mi)

42.2 km
(26.2 mi)

Also known as “long distance”, “Ironman Triathlon” or “Iron Distance”.