Triathlon Distances

Discover the various triathlon distances and find the perfect challenge for you. From Sprint to Ironman, each distance offers unique opportunities for personal growth, fitness improvement, and a sense of accomplishment.

Bicester Triathlon Club also supports, Duathlon, Aquathlon, Aquabike, Swim/Run, Biathle, Open Water Swimming events and Sportives. If your interests extend to any of these multi-sport, swimming and cycling events please contact us at

Adult Triathlon Distances

Super Sprint Triathlon
The ideal distance for the first time social triathlete, the shortest distances of:

400/200m swim
10km bike
2.5km run
Sprint Triathlon
The Sprint distance is ideal for beginners or those looking for a shorter, more manageable race.
It typically consists of:

750m swim (400m in a pool)
20km bike
5km run
Olympic Triathlon
Also known as the "standard" or "international" distance, the Olympic triathlon is perfect for athletes seeking a more significant challenge.
It features:

1.5km swim
40km bike
10km run
Half Ironman
The Half Ironman, or 70.3, is a challenging distance for experienced triathletes looking to push their limits.
The race includes:

1.9km swim
90km bike
21.1km run
The Ironman is the ultimate test of endurance and mental strength. This demanding distance requires rigorous training and determination:

3.8km swim
180km bike
42.2km run

Junior Triathlon Distances

Bicester Triathlon Club is committed to nurturing young athletes and offers training for tailored race distances for various age groups, from 8 to 19 years old.

** Whilst tarmac distances are given, junior races in these age categories are rarely competed entirely on tarmac. Tarmac will generally only feature as a small part of a grass track.
TristarStart (age 8):
Swim(pool): 50m
Swim (open water): 50m - 100m
Cycle (grass): 800m
Cycle (tarmac): 1.5k**
Run: 600m
Tristars 1 (age 9-10):
Swim: 150m
Swim (open water): 150m - 200m
Cycle (grass): 2k
Cycle (tarmac): 4k**
Run: 1.2k
Tristars 2 (age 11-12):
Swim: 200m
Swim (open water): 200m - 300m
Cycle (grass): 4k
Cycle (tarmac): 6k**
Run: 1.8k
Tristars 3 (age 13-14):
Swim: 300m
Swim (open water): 300m - 350m
Cycle (grass): 6k
Cycle (tarmac): 8k**
Run: 2.4k
Youths (15-16 years old)
400m swim
10km bike
2.5km run
Juniors (17-19 years old)
750m swim
20km bike
5km run

Whilst Triathlon is our primary sport. Bicester Tri club also supports participation in; duathlon, aquathlon,
distance swimming events, swim/run, and cycling sportives

Interested in joinging the club?

No matter your age or experience level, Bicester Triathlon Club offers race distances that cater to your needs.
Join us today and start your journey in the thrilling world of triathlon.