# Part 18: Winter Triathlon and Winter Duathlon (World Triathlon Competition Rules)

Triathlon · Part 18: Winter Triathlon and Winter Duathlon · Insporta Book (https://book.insporta.app/triathlon/laws/part-18-winter-triathlon-and-winter-duathlon/)

Winter formats, the run and mountain bike, skiing and skating, transition, coaches' and repair stations, the finish and the cold-weather limit.

## 18.181 Winter Triathlon and Winter Duathlon

Winter formats, the run and bike, skiing and skating, transition, stations, finish and weather.

### Test 1: Formats, the run and the bike

- A winter triathlon is running, mountain biking and cross-country skiing; a 6-segment version repeats them twice. (Source: World Triathlon Competition Rules (January 2025), 18.1 a (i) (Winter Triathlon and Winter Duathlon))
- Skating takes the bike's place in S3, between the run and the ski. (Source: World Triathlon Competition Rules (January 2025), 18.1 a (ii) (Winter Triathlon and Winter Duathlon))
- A winter duathlon is running and cross-country skiing, or those two repeated once more. (Source: World Triathlon Competition Rules (January 2025), 18.1 a (iii) (Winter Triathlon and Winter Duathlon))
- Athletes may not warm up or familiarise on the course while a competition is in progress. (Source: World Triathlon Competition Rules (January 2025), 18.2 b (Winter Triathlon and Winter Duathlon))
- Any type of shoe, including spike shoes, is allowed on the run. (Source: World Triathlon Competition Rules (January 2025), 18.3 b (Winter Triathlon and Winter Duathlon))
- Tyres are 26 to 29 inches, with a cross section of at least 1.5 inches; front and rear may differ. (Source: World Triathlon Competition Rules (January 2025), 18.4 a-b (Winter Triathlon and Winter Duathlon))
- On the winter bike segment drafting is allowed and lapped athletes are not removed. (Source: World Triathlon Competition Rules (January 2025), 18.4 e (Winter Triathlon and Winter Duathlon))
- The 6-segment format repeats run, bike and ski continuously twice. (Source: World Triathlon Competition Rules (January 2025), 18.1 a (i) (Winter Triathlon and Winter Duathlon))
- Two segments, four segments, and six segments. (Source: World Triathlon Competition Rules (January 2025), 18.1 a (Winter Triathlon and Winter Duathlon))
- Spiked tyres are allowed only if the spikes are shorter than 5 mm; 27.5 inch wheels and 2.1 inch tyres are fine. (Source: World Triathlon Competition Rules (January 2025), 18.4 a, i (Winter Triathlon and Winter Duathlon))

### Test 2: Skiing and skating

- Athletes may ski with their preferred technique; the TD may make classic style mandatory in certain areas. (Source: World Triathlon Competition Rules (January 2025), 18.5 d-e (Winter Triathlon and Winter Duathlon))
- Athletes may change one ski and both poles; elite and junior athletes only if the ski or binding is broken. (Source: World Triathlon Competition Rules (January 2025), 18.5 c (Winter Triathlon and Winter Duathlon))
- Helmets are not allowed on the ski segment, though the TD may allow one because of the cold. (Source: World Triathlon Competition Rules (January 2025), 18.5 f (Winter Triathlon and Winter Duathlon))
- Once a request to pass is made, the athlete being passed must move to the side as soon as possible. (Source: World Triathlon Competition Rules (January 2025), 18.5 g (Winter Triathlon and Winter Duathlon))
- Athletes may not change corridors in the finish chute, except to overtake. (Source: World Triathlon Competition Rules (January 2025), 18.5 i (Winter Triathlon and Winter Duathlon))
- Skis stay on until at least 10 m past the finish line, where the last ski check is made. (Source: World Triathlon Competition Rules (January 2025), 18.5 j (Winter Triathlon and Winter Duathlon))
- Athletes are not allowed to change any of the skates. (Source: World Triathlon Competition Rules (January 2025), 18.6 b (Winter Triathlon and Winter Duathlon))
- Elite and junior athletes may change one ski only if it is broken, off the track and without help, and prove it afterwards. (Source: World Triathlon Competition Rules (January 2025), 18.5 c (Winter Triathlon and Winter Duathlon))
- Finish is judged at the front boot's tip; skis stay on for 10 m, where the last ski check happens. (Source: World Triathlon Competition Rules (January 2025), 18.5 h-j; 18.10 (Winter Triathlon and Winter Duathlon))
- Every condition in the report matches: one ski, a broken binding, off the track, no helper. (Source: World Triathlon Competition Rules (January 2025), 18.5 c (Winter Triathlon and Winter Duathlon))

### Test 3: Transition, stations, finish and weather

- Skiing inside the transition area is forbidden. (Source: World Triathlon Competition Rules (January 2025), 18.7 a (Winter Triathlon and Winter Duathlon))
- Running shoes and skates go on and off in the athlete's own space; Nordic blades may use a changing zone if provided. (Source: World Triathlon Competition Rules (January 2025), 18.7 b (Winter Triathlon and Winter Duathlon))
- Helmets are fastened from putting skates on (or taking the bike) until the skates come off (or the bike is racked). (Source: World Triathlon Competition Rules (January 2025), 18.7 d (Winter Triathlon and Winter Duathlon))
- A littering zone after the ski placing line takes discarded shoe covers. (Source: World Triathlon Competition Rules (January 2025), 18.7 f (Winter Triathlon and Winter Duathlon))
- Tools and spares may be left if packed and labelled; complete wheels may not, and repairs are the athlete's own. (Source: World Triathlon Competition Rules (January 2025), 18.9 d (Winter Triathlon and Winter Duathlon))
- Finish is the moment the tip of the front ski boot crosses the line's vertical plane. (Source: World Triathlon Competition Rules (January 2025), 18.10 a (Winter Triathlon and Winter Duathlon))
- The competition is cancelled when the air temperature is lower than -18 C. (Source: World Triathlon Competition Rules (January 2025), 18.11 a (Winter Triathlon and Winter Duathlon))
- Coaches get a designated space on the run, bike and ski segments. (Source: World Triathlon Competition Rules (January 2025), 18.8 a (Winter Triathlon and Winter Duathlon))
- Under 5 mm spikes, 10 m past the line, and cancellation below -18 C. (Source: World Triathlon Competition Rules (January 2025), 18.4 i; 18.5 j; 18.11 (Winter Triathlon and Winter Duathlon))
- Below -18 C air temperature the competition is cancelled. (Source: World Triathlon Competition Rules (January 2025), 18.11 a (Winter Triathlon and Winter Duathlon))

Sources: World Triathlon Competition Rules, January 2025, Part 18 (paraphrased in original wording; original questions authored from the rules, not reproduced)

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