Onionman Triathlon

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 *

The 33rd Annual Onion Man Triathlon will be held on SATURDAY, May 22, 2027. The Olympic Distance race held at the base of the Blue Mountains is a 1.5K lake swim, 40K rolling bike, and an honest 10K run. 

BIKE COURSE:  Due to the reconstruction of Five Mile Bridge, the bike course this year will revert to our former out-and-back course up Mill Creek Road to a turn-around point just before Kooskooskie. In accordance with USAT rules, bar end plugs are required on all bikes.

Registration includes a custom short-sleeved T-shirt, a post-race burrito, and a free beer from Quirk Brewing in a custom pint glass.  You may also add-on an additional post-race meal for $15 and/or a beer for non-participants at least 21 years of age for $5.  No day of race registration and no wait list available if race fills. No refunds, transfers and no deferrals.

Onion Man Triathlon race is a USA Triathlon Sanctioned event (Event ID #361774), if you are a USAT member you will need to enter your number on the registration page. If you are not a member you will need to purchase a one-day license during registration.

Thank you and let's race!