Tri Millennium
- Date
- July 24–25, 2026
- Location
- 1400 Maynard Ave SW, Walker, MI
- Distance
- Sprint Tri · Sprint Tri Relay (2 Person) · Sprint Tri Relay (3 Person) & more
From the Organizer
Tri Millennium is one of West Michigan's longest-standing multi-sport events and a favorite among many local athletes. Located in the beautiful Millennium Park in Grand Rapids, MI, Tri Millennium offers an Olympic and Sprint distance triathlon, duathlon, and aquabike. Our Olympic race features a 1,500-meter swim, 24.8-mile bike, and 6.2-mile run. Our Sprint distance race features a 750-meter swim, 12.4-mile bike, and 3.1-mile run. Relay options are available for both races.
The inland waters of Millennium Park are typically calm and pleasant, the surrounding roads follow the rolling terrain for the bike course, and the paved trails through the park are flat and fast, making Tri Millennium a great race for the elite athlete looking for a summer "A" race, a beginner athlete looking to complete their first triathlon, or a primer race for those prepping for the MiTi half or full triathlon later in August. With professional timing from Trivium Racing and a full complement of volunteers and support on race day, Tri Millennium is a race for everyone.
Tri Millennium's charity partner is Bridge Street Ministries, a Christian urban youth ministry in Grand Rapids' West Side, working to support the spiritual, academic, and social development of inner-city youth, leading them with a vision of hope and restoration and believing that they will be the future leaders of our community. 100% of the donations from Tri Millennium will go to support this important work. For more information, visit bsmgr.org.
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Every finish line starts with a single decision. Claim your spot at Tri Millennium, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Triathlon races in Michigan
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
Three sports, one race — swim, bike, run in sequence, with transitions that are a discipline of their own.
Open water, open roads, and competition with yourself. Cross the finish line knowing what it took to get there.
Triathlon
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think.
Frequently Asked Questions (FAQs)
- What is the Tri Millennium?
- Tri Millennium is a triathlon race held in Walker, Michigan on July 24, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more triathlon races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Tri Millennium?
- Friday, July 24, 2026 in Walker, Michigan at 1400 Maynard Ave SW, Walker, MI. Check the event page for exact start times and wave schedules.
- How do I register for the Tri Millennium?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Tri Millennium
Jul 24, 2026