Tri Millennium

JUL
25
2026
Tri Millennium on July 25, 2026 at Millennium Park in Grand Rapids offers sprint and Olympic triathlon, duathlon, aquabike and relay options plus youth races. Registration includes a shirt, medal, and free entry into the Michigan Tri Series.
Sat 25 Jul 2026
Youth (6-11 Years Old) Ru... Youth (12-15 Years Old) R... Sprint Triathlon Run Olympic Triathlon Run

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Tri Millennium

Tri Millennium takes place on July 25, 2026 at Millennium Park in Grand Rapids, Michigan. The event features multiple multisport formats and distance options held at the Millennium Park recreation area on the city’s southwest side.

Available distances and youth categories:

  • Sprint: 750 m swim, 20 km bike, 5 km run
  • Olympic: 1500 m swim, 40 km bike, 10 km run
  • Youth 6-8: 50 m swim, 1.5 mi bike, 1 km run
  • Youth 9-11: 50 m swim, 1.5 mi bike, 1 km run
  • Youth 12-15: 100 m swim, 3 mi bike, 2 km run

The event offers triathlon, duathlon, aquabike, and relay entries. Registration includes a participant shirt, a finisher medal, and free entry into the Michigan Tri Series with no additional sign-up required. The course is marked and staffed with volunteers and police at predetermined intersections; aid stations are provided depending on distance. Awards are given for overall placings, age groups, and designated categories such as Clydesdale and Athena. Parking is available on-site with attendants to assist on race day. A portion of event proceeds benefits Bridge Street Ministries to support youth programs in West Michigan. Visit the organization's website for the most recent information.

10 km
Olympic Triathlon Run
5 km
Sprint Triathlon Run
Youth (12-15 Years Old) Run
Youth (6-11 Years Old) Run
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