Motor City Triathlon

Belle Isle Park
2 Inselruhe,
Detroit, MI 48206

Michigan's newest state park, Belle Isle sets the scene for arguably the fastest triathlon course in the entire country. New for the 2017 Motor City Triathlon, the entire south end of the island will be closed to traffic. Music to the ears of the triathlete who doesn't want to worry about cars and spectators during the event. Those who have competed here in the past know the Detroit International Grand Prix is typically a few weeks before our event which leaves the entire island is open for the Motor City Triathlon. The entire south end of the island will be closed and off limits to the public resulting in no traffic on half the bike course, and half the run course! A barricade will be opened and manned by park officers at the bike entry/exit point as well as the run entry/exit point. Therefore please pay attention to course and venue maps as well as support crew when arriving on the island. 

Choose your race:

Olympic Triathlon - 1500m swim, 23mi bike, 10k run 
Sprint Triathlon - 500m swim, 20k bike, 5k run 
Olympic Aquabike - 1500m swim, 23mi bike
Sprint Aquabike - 500m swim, 20k bike
Super Sprint - 200m swim, 10k bike, 1mi run
**2 and 3 person relays offered for Olympic and Sprint Distance Triathlon


$90 until April 16
$100 April 17 and after until online registration closes Thursday before the event at midnight.

Super Sprint
$38 until online registration closes Thursday before the event at midnight.

$105 thru April 16
$120 April 17 thru Thursday before the event at midnight.

Onsite Registration - CASH ONLY
Day before: add $10 to above pricing
Day of: add $20 to above pricing 
Relays: add $20 to above pricing 

Onsite registration: Saturday from 12-3 p.m. and Sunday 6-7a.m.

Non USAT Members
$15 One Day Fee (collected onsite cash or check only)

A huge thank you to the folks at the Detroit Grand Prix and DNR for making accommodations for the 12th & 13th Motor City Triathlons to remain on our date. More information and registration is available at You can also contact [email protected] or call 231-546-2229.

Please Note: The Michigan Department of Natural Resources makes every effort to provide the most up-to-date and accurate information on the web calendar. However, dates occasionally change and events may be canceled for any reason. Please call the unit hosting the event to confirm dates and times prior to your arrival.

A Recreation Passport is required for entry into all Michigan state parks and recreation areas. Check "YES" when you renew your license plate at the Secretary of State.

For camping reservations, visit or call 1-800-447-2757.

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