HalfRuns
TriWalloon

TriWalloon

TriWalloon offers a scenic triathlon experience on the pristine waters of Walloon Lake.

Race Date

Jul 18, 2026

Location

Walloon Lake, MI

Quick facts

Date
Saturday, July 18, 2026
Location
Walloon Lake, Michigan
Distance
Half marathon (13.1 mi) + 15.9 Miles, 16 Miles, 18.6 Miles
Course
Point to Point
Terrain
Road
USATF certified
Not listed

Highlights

Good For

Beginner FriendlyDestination Worthy

Atmosphere

Local CommunityWell OrganizedGreat Swag

Course

Scenic Route

The Experience

Set against the stunning backdrop of Walloon Lake in Michigan, TriWalloon transforms the picturesque village into a vibrant race venue. This event, which began in 2017 with 120 participants, now consistently sells out with over 350 athletes each year, drawing multisport enthusiasts from across the state.

The course features a 600-meter swim in the clear waters of Walloon Lake, followed by a 12.4-mile out-and-back bike ride along scenic country roads bordering the lake. The race concludes with a two-loop run through Walloon Lake Township, finishing in the park adjacent to Legacy Marina. This well-organized event is designed to welcome everyone, from first-time triathletes to seasoned competitors, making it an ideal destination race for a memorable weekend.

TriWalloon has cultivated a loyal following, becoming a favorite among athletes who appreciate its beautiful setting and inclusive atmosphere. The event offers a fantastic opportunity to combine athletic challenge with the charm of a Michigan lakeside community.

Race-provided description

Welcome to TriWalloon, a triathlon staged in the increasingly popular Walloon Village. The pristine waters of Walloon Lake are located between Petoskey and Boyne City, Michigan and offer a stunning setting for a triathlon. The event consists of a sprint distance triathlon, duathlon, and aquabike. Our races have proven to be a great event for all, from the beginner athlete who wants to attempt their first triathlon, to the seasoned and elite athletes who race every weekend. Relay teams are also encouraged for the triathlon. Male, female and co-ed are welcomed. This event will make for the ideal destination race for all. Come for the race, stay for the weekend! TriWalloon has become a favorite with many multi-sport athletes from around the state.  We started in 2017 with 120 athletes.  Now, just a few years later we sell out with over 350 athletes registering each year. COURSE DESCRIPTION: 600 Meter triangular swim course starting and finishing at the docks of Legacy Marina. Transition area is right out of the water in the park next to Barrel Back Restaurant. The bike course is a 12.4 mile out-and-back route that follows the country roads along the south side of Walloon Lake. The run is a two-loop course through Walloon Lake Township, with a finish back at the park next to Legacy Marina. Duathlon will start with one loop of the run course, then bike, then finishing with the full, two-loop run course. Aquabike will start with the 600m swim and finish after the bike course. Once again, 100% of the proceeds from this race will go toward the continued work of the inner-city ministry of Bridge Street Ministries. Please visit bsmgr.org for more information about this great mission.

Logistics

Race Day

Saturday, July 18, 2026

Start Time

7:30 AM

Giveaway

T-Shirt

Start Location

4069 M-75, Walloon Lake, MI, 49796

Directions

Course Info

Course Type

Point to Point

Terrain

road

Scenery

Lake River

Surface

Paved

Difficulty

Ultra-Flat

Net Drop/km

0 m (Flat)

Separation

0.0%

Also Offers

15.9 Miles16 Miles18.6 Miles

Quality Score

Methodology
Heritage0/20

first year

Size0/15

no finisher counts yet

Momentum3/5

small race — neutral

Loyalty0/20

needs a few years of results

Course & details5/15

3 timing sources

National draw0/10

no finisher data yet

Front-pack speed0/5

no winner time yet

Weather0/10

typical high 77°F

Race Day Weather

5-year historical avg

Start (Low)

61°

Afternoon (High)

77°

Warm — hydration strategy is key, start conservatively

0.1"

Precipitation

10 mph

Wind

74%

Humidity

Frequently asked

When is the TriWalloon?

The TriWalloon is held on Saturday, July 18, 2026, starting at 7:30 AM.

Where does the TriWalloon take place?

It takes place in Walloon Lake, Michigan.

What distances does the TriWalloon offer?

The half marathon (13.1 miles), plus 15.9 Miles, 16 Miles, 18.6 Miles.

Is the TriWalloon course flat and good for a PR?

The TriWalloon is a ultra-flat, point to point course.

HalfRuns editorial — independent, no paid placement.

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