Spartan Race in Amphoe Chiang Rai, Thailand. 11 events over 2 days, Dec 12–13, 2026.
This World Championship event weekend is held in Chiang Rai, northern Thailand. Sprint, Super, and Beast races run over two days on rural trails and mud, with Elite and Age Group fields in the Super and Beast. Kids races round out the weekend.
Start times as published by the organizer. Waves fill up.
Register on spartan.com
Race village, nearest airport and how to get there.
Amphoe Chiang Rai, Thailand
Actual conditions on these dates over the past 5 years.
| Year | High | Low | Wind | Rain |
|---|---|---|---|---|
| 2025 | 24°C | 18°C | 6 km/h | 1.1 mm |
| 2024 | 28°C | 18°C | 5 km/h | — |
| 2023 | 28°C | 21°C | 8 km/h | 2.0 mm |
| 2022 | 27°C | 18°C | 7 km/h | — |
| 2021 | 27°C | 17°C | 8 km/h | — |
Spartan Chiangrai is a trail and mud course with Sprint, Super and Beast waves. Every training plan is built around your race date, your fitness and the days you can train.