Fri August 6 - Sat August 7 Walker, MI 49534 US Directions

Sprint Tri

08/07 8:00AM EDT

Sprint Tri - Elite

08/07 8:00AM EDT

Sprint Tri Relay

08/07 8:00AM EDT

My Team Triumph

08/07 7:15AM EDT

Sprint Duathlon

08/07 8:00AM EDT

Sprint Aqubike

08/07 8:00AM EDT
2021 Registration Closed

Registration for this year's event is now closed. There will not be any race day registration. Please contact the race director with any questions.

Race Website

Additional race information can be found at

1400 Maynard Ave SW
Walker, MI US 49534

One of West Michigan's longest-standing triathlons, and a favorite among many local athletes.  Located in the beautiful Millennium Park in Grand Rapids, MI, TriMillennium offers an Olympic and Sprint distance triathlon.  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 Millennium Park lake typically offers calm, pleasant water, and our run and bike courses are flat and fast, making TriMillennium a great race for the elite athlete looking for an August "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, TriMillennium is a race for everyone.    

100% of proceeds from TriMillennium will go to support the inner-city youth of Grand Rapids, helping provide them with opportunities to succeed.  For more information about our charitable partners, visit

Race Contact Info

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