Spartan Race in Snohomish, USA. 18 events over 2 days, Sep 18–19, 2027.
The Seattle Spartan Trifecta Weekend is held at Snohomish, about an hour north-east of Seattle in the Cascade foothills. The course runs through second-growth evergreen forest on logging tracks and singletrack, with the Pacific Northwest rainfall keeping the mud sections deep well into September.
All three Trifecta distances run across 18-19 September 2027: Beast (21 km) and Sprint on the Saturday, Super (10 km) and a second Sprint on the Sunday, so the full Trifecta is achievable in the weekend. Doubles heats run on every distance and Kids Races at 1 km, 1.5 km and 3 km run both days.
Start times as published by the organizer. Waves fill up.
Register on spartan.com
Race village, nearest airport and how to get there.
Snohomish, USA
Airports within 200 km of the venue. Each one lists the other races you can reach from it.
Actual conditions on these dates over the past 5 years.
| Year | High | Low | Wind | Rain |
|---|---|---|---|---|
| 2026 | 21°C | 9°C | 8 km/h | — |
| 2025 | 20°C | 10°C | 13 km/h | — |
| 2024 | 20°C | 11°C | 10 km/h | — |
| 2023 | 19°C | 10°C | 14 km/h | — |
| 2022 | 22°C | 10°C | 10 km/h | 1.1 mm |
Spartan Seattle is a forest, 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.