Mary Lou Triathlon
Swim. Bike. Run. Enjoy the wilderness.
Event Details
Join us for the Mary Lou Triathlon — a day full of excitement, endurance, and memories to last a lifetime! Whether you are a beginner or seasoned triathlete, we have something for everyone.
Expect a fun day with good vibes, energetic crowd, and delicious snacks at every turn! The triathlon consists of swimming, biking, and running, but the real challenge is always pushing yourself just a little more.
📍 Location
Weippe, ID 83553, USA
📅 Dates
June 13-14, 2026
⏰ Youth Start
June 13 @ 6:00 PM
⏰ Adult Start
June 14 @ 8:00 AM
Expect a fun day with good vibes, energetic crowd, and delicious snacks at every turn! The triathlon consists of swimming, biking, and running, but the real challenge is always pushing yourself just a little more.
We can't wait to see you there! Don't forget to bring your sense of humor and a willingness to have fun!
📍 Location: 4137 Schmidt Mill Road, Weippe, ID 83553, US
📅 New Dates in 2026: Saturday & Sunday, June 13-14 – Deyo Reservoir
🚸 Youth Triathlon: Saturday, June 13, 6:00 PM (Ages 4–12).
🚸 Adult Triathlon: Sunday, June 14, 8:00 AM.
📢 Youth Triathlon Mini Course
- Swim: 60 Yards
- Bike: 0.7 Miles
- Run: 0.4 Miles
🚨 Adult Triathlon Course
- Swim: 300 Yards
- Bike: 13 Miles
- Run: 2.2 Miles
🎒 Packet Pickup
*ALL AGES*
- Sat, June 13, 3:00–5:30 PM @ Schmidt House
- Sun, June 14, 6:30–7:00 AM @ Deyo Reservoir
📢 Athlete Briefing
*ALL AGES*
- Sat, June 13, 5:00 PM @ Schmidt House
- Sun, June 14, 7:30 AM @ Deyo Reservoir
Camping Options
- 🏕Camping Available: http://www.weippe.com/deyo/⛺
🚨 Rules & Safety
- 🚴 Helmets are mandatory — brains are cool, concussions are not.
- 🦺 No lifejackets allowed in the adult race.
- 🧼 Transition area opens at 6:30 AM.
- 🧭 Follow all course markings — this isn't an orienteering event.
📸 Highlights from Past Events
