Tri Millennium

JUL
25
2026
Read all about the Tri Millennium on 25 Jul 2026 in Grand Rapids.
Sat 25 Jul 2026
Youth 6-11 Years Old Youth 12-15 Years Old Sprint Olympic Duathlon

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Event Information

The Tri Millennium is a multisport event held in Walker, Michigan. It takes place over two days in late July. The event features various formats: triathlon, duathlon, and aquabike in both Sprint and Olympic distances. There are also relay team options for the triathlon events.

Distances and Formats

The event offers a wide range of race formats:

  • Olympic Triathlon: A 1500-meter swim, a 24.8-mile bike, and a 6.2-mile run.
  • Sprint Triathlon: A 750-meter swim, a 12.4-mile bike, and a 3.1-mile run.
  • Duathlon: Run-bike-run events at both Sprint and Olympic distances.
  • Aquabike: Swim-bike events at both Sprint and Olympic distances.
  • Relays: Team options for both Sprint and Olympic triathlon distances (2-person and 3-person teams).
  • Kids Triathlon: Separate events for children aged 6-8, 9-11, and 12-15.

Course Details

The event is held at Millennium Park in Grand Rapids. The swim takes place in the park's inland waters, which are typically calm. The bike course uses surrounding roads with rolling terrain. The run is on paved park trails described as flat and fast.

Charity

The event's charity partner is Bridge Street Ministries, a Christian urban youth ministry in Grand Rapids. All event donations go directly to this organization. Visit the organization's website for the most recent information.

10 km
Olympic
5 km
Sprint
Youth 12-15 Years Old
Youth 6-11 Years Old
Duathlon