

Onionman Triathlon 2027
- Date
- Saturday, May 22, 2027
- Start time
- 9:00 AM start (Los Angeles)
- Location
- Walla Walla, Washington
- Entry fee
- From $100
- Included with entry
- Includes a shirt
- Fundraising
- Takes optional donations when you register
Registration is open.
We earn a small commission when you register through this link, at no cost to you. Details
Official race websiteAdd to calendar: Apple or Outlook · Google
Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Aquabike | AquabikeOpen water swim | May 22, 20279:00 AM | $105$120 after Apr 21, 2027 | – |
| Athena & Clydesdale | Olympic TriathlonOpen water swim | May 22, 20279:00 AM | $105$120 after Apr 21, 2027 | – |
| Individual - Olympic Age Group | Olympic TriathlonOpen water swim | May 22, 20279:00 AM | $105$120 after Apr 21, 2027 | 275 |
| Olympic Relay -2 Person | Olympic TriathlonRelay or teamOpen water swim | May 22, 20279:00 AM | $155$175 after Apr 21, 2027 | – |
| Olympic Relay - 3 Person | Olympic TriathlonRelay or teamOpen water swim | May 22, 20279:00 AM | $255$275 after Apr 21, 2027 | – |
| **Special Teams | Olympic TriathlonOpen water swim | May 22, 20279:00 AM | $100 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The Aquabike fee goes up to $120 on Apr 21, 2027.
Race day planning
Entry fee schedule
- Aquabike and Athena & Clydesdale and Individual - Olympic Age Group: $105 until Apr 21, then $120 until May 22.
- Olympic Relay -2 Person: $155 until Apr 21, then $175 until May 22.
- Olympic Relay - 3 Person: $255 until Apr 21, then $275 until May 22.
- **Special Teams: $100 until May 22.
Online registration closes May 22, 2027, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 5:14 AM, and the Aquabike starts at 9:00 AM. The start sits about 1,080 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
3211 Reservoir Rd, Walla Walla, WA 99362
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Where Onionman Triathlon ranks
- No. 39 of 50 on Cheapest olympic triathlons in the US
National lists computed from results, entry fees, course maps and water temperatures; they refresh through the day.
Typical race-day weather
Around May 22 the day usually runs from 50°F at dawn to 69°F in the afternoon, with measurable rain on about 12% of days. Cold snaps dip to 44°F and hot years reach 81°F.
Based on 85 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- 3211 Reservoir Rd, Walla Walla, WA 99362Map
- Course
- Road
- Start elevation
- About 1,080 feet
- Included with entry
- T-Shirt
- Donations
- Accepted when you register
- Distances
- Olympic Triathlon, Aquabike
- Editions
- 2027 (May 22, 2027), 2026 (May 17, 2026), 2025 (May 18, 2025), 2024 (May 18, 2024), 2023 (May 20, 2023), 2022 (May 21, 2022)
Organize this race? Add details or a correction
Quick answers
- When is Onionman Triathlon?
- Saturday, May 22, 2027, starting at 9:00 AM.
- How much does it cost?
- Entry starts at $100 before processing fees.
- When does registration close?
- Online registration closes May 22, 2027, unless the race fills first.
- Do athletes get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- Can I donate to a cause when I register?
- Yes. The registration form offers an optional donation, usually for the charity or nonprofit the race supports. The race's own page names the cause.
- What distances are offered?
- Olympic Triathlon, Aquabike.
- Where does it start?
- 3211 Reservoir Rd, Walla Walla, WA 99362.
From the organizers
Onion Man is a grass roots, affordable, low-key, early season event in beautiful Walla Walla meant to be accessible to all triathletes. This race is for beginners looking to gain experience to elite athletes looking for a competitive, challenging race. Onion Man is also open to team competitors. We wish all of you a safe race and encourage you to get out there and swim hard, ride strong, run fast and most of all, enjoy yourselves!
* The race will have a 300 participant cap! Register early *