Epic Races' Island Lake Triathlon, Duathlon, Aquabike
About this race
Triathletes throughout Michigan have long considered the Island Lake State Recreation Area, home of the Island Lake Triathlon, an epic training destination, ideal for any athlete preparing for a multisport event. Set within a 4,000-acre park in Livingston County that offers an “up north” experience without leaving southeast Michigan. The terrain is a mixture of open brush land to mature hardwood forest, with some pockets of open meadows mixed in with a paved road of rolling hills weaving throughout. You’ll swim the clear waters of Kent Lake, bike the park’s rolling, tree-lined hills, then run the panoramic final leg towards the lakeside finish line!
Island Lake Tri features 7 different events:
Olympic Triathlon — 1500 meter swim, 24-mile bike, 6.2-mile run
Sprint Triathlon — 750-meter swim (32 lengths in a standard metric pool), 12-mile bike ride, 3.1-mile run
Super Sprint (formerly Mini-Sprint) Triathlon — 400-meter swim (16 lengths in a standard metric pool), 12-mile bike ride, 1.5-mile run
Olympic Aquabike (swim bike done) — 1500 meter swim, 24-mile bike ride
Sprint Duathlon (run bike run) — 1.5-mile run, 12-mile bike ride, 3.1-mile run
Olympic Relay — team up with one or two friends to complete our Olympic Triathlon together
Sprint Relay — team up with one or two friends to complete our Sprint Triathlon together
Certification
USA Triathlon Official Sanctioned Event
Course Maps
Please note that in the interest of safety, all courses are subject to change at any time at the discretion of the race director.
OLYMPIC BIKE COURSE
OLYMPIC RUN COURSE
SPRINT AND SUPER SPRINT BIKE COURSE
SPRINT RUN COURSE
SUPER SPRINT RUN COURSE
Post-Race Celebration
Stick around post race for food and festivities! Our Epic staff and volunteers will be cooking up pancakes, breakfast burritos, and more for race participants.
Zero Waste Policy
The event is a Leave No Trace event. Learn more about our race-day recycling and composting efforts here. Want more information about running a great race and leaving no trace? Visit https://happyplanetrunning.com.
→ Read the Island Lake Tri sustainability report here!
Pick your distance
Triathlon
Olympic Triathlon
1500m swim, 40K bike, 10K run
Sprint Triathlon
750m swim, 12-mile bike, 3.1-mile run
Super Sprint Triathlon (formerly Mini Sprint)
400m swim, 12-mile bike, 1.5-mile run
Olympic Relay Triathlon
1500m swim, 40K bike, 10K run
Sprint Relay Triathlon
750m swim, 12-mile bike, 3.1-mile run
Aquabike
Olympic Aquabike
1500m swim, 40K bike
Duathlon
Sprint Duathlon
1.5-mile run, 12-mile bike, 3.1-mile run
Swimming
Open Water Timed Practice Swim - 1500m
Swim open water in a race environment without the pressure of a race! Get the swag and stick around for post-event food and festivities!
Open Water Timed Practice Swim - 750m
Swim open water in a race environment without the pressure of a race! Get the swag and stick around for post-event food and festivities!
Open Water Timed Practice Swim - 400m
Swim open water in a race environment without the pressure of a race! Get the swag and stick around for post-event food and festivities!
Typical race-day weather
Based on 10 years of historical conditions on this event's race dates in Brighton.
About Brighton
Epic Races' Island Lake Triathlon, Duathlon, Aquabike takes place in Brighton, Michigan, United States. The local timezone is America/Detroit.
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🏃 Plan Your Next Race in Brighton
Find upcoming events by distance:
- Brighton 5K Races Best Brighton routes for beginners and speed work.
- Brighton Half Marathons Top-rated 21.1K courses in the Brighton area.
- Brighton Running Calendar 2026 See all upcoming race dates.
Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.
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