Lake Wilderness Triathlon

Sat, Jun 6, 2026
United States
Maple Valley
lakewildernesstriathlon.com
Lake Wilderness Triathlon
Triathlon

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Triathlon in United States, Maple Valley

Distances

Triathlon
Olympic Bike
27.9 km
Start: Jun 8, 01:00 PM
Triathlon
Half Marathon
21.1 km
Start: Jun 8, 01:00 PM
Triathlon
Half Marathon (washes out)
21.1 km
Start: Jun 8, 11:02 AM
Triathlon
Sprint Bike
13.8 km
Start: Jun 8, 01:00 PM
Triathlon
10K
10 km
Start: Jun 8, 11:04 AM
Triathlon
Olympic Run
6.1 km
Start: Jun 8, 01:00 PM
Triathlon
5.5K
5.5 km
Start: Jun 8, 11:06 AM
Triathlon
Sprint Run
5 km
Start: Jun 8, 01:00 PM
Triathlon
Olympic Swim
0.9 km
Start: Jun 8, 01:00 PM
Triathlon
Sprint Swim
0.3 km
Start: Jun 8, 01:00 PM

About

Join Lake Wilderness Triathlon at Lake Wilderness Park featuring an Olympic swim, bike, and run, along with sprint and relay options. A community-focused event supporting local families and charities.

Catering & aid stations

Water and GU every 2 miles; Porta-potty at mile 4.68 and 11.28 on long run. Walkers permitted on 5.5K and 10K; NO walkers on half marathon route due to washout.

Pacers

Pace groups on race morning per start wave listed on the "Race Day" page. Pacers will lead their respective waves; look for Pacer flagons.

Typical weather in Maple Valley

Monthly averages based on historical data (2000–present).

Jan45°34°

↑ 07:52

↓ 16:44

Feb46°33°

↑ 07:15

↓ 17:31

Mar51°36°

↑ 07:21

↓ 19:15

Apr56°39°

↑ 06:19

↓ 19:58

May62°45°

↑ 05:32

↓ 20:40

Jun67°51°

↑ 05:12

↓ 21:08

Jul75°56°

↑ 05:28

↓ 21:02

Aug75°56°

↑ 06:06

↓ 20:21

Sep69°51°

↑ 06:47

↓ 19:21

Oct58°44°

↑ 07:28

↓ 18:21

Nov49°38°

↑ 07:15

↓ 16:33

Dec44°34°

↑ 07:51

↓ 16:19

Weather data by Open-Meteo

What's included in entry

Race T-Shirt
Finisher Medal
Event Food and Drink

Sweat Vest
Timing Chip Tag

FAQ

Is there a half marathon this year?

No — due to washout conditions on the trail the half marathon route cannot be completed as previously routed; the half marathon is not offered this year.

Are walkers allowed?

Walkers are permitted on the 5.5K and 10K routes. Walkers are NOT permitted on the half marathon route due to washout; the marathon remains open to walkers where posted.

What are the start times?

Sprint events start at 9:00 AM. Olympic events start at 9:00 AM. 5.5K starts at 7:06 AM. 10K starts at 7:04 AM. See the Race Day page for pace group waves and exact times.