Tri Millennium
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Tri Millennium
Tri Millennium is a multisport event held at the Millennium Park recreation area in Grand Rapids, Michigan on July 25, 2026. The event features multiple race formats—triathlon, duathlon, aquabike, and relay—offered at Sprint and Olympic distances, plus a youth triathlon for several age groups.
Distances include:
- 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
- Sprint: 750 m swim, 20 km bike, 5 km run
- Olympic: 1500 m swim, 40 km bike, 10 km run
The venue is Millennium Park on the southwest side of Grand Rapids; on-site parking is available with attendants. The event is included in the Michigan Triathlon Series; series entry is free and there is no separate sign-up fee.
Registration includes a participant shirt, finisher medal, entry into the Michigan Triathlon Series, course markings and volunteers, aid stations depending on distance, and free race photos. Awards are presented by overall and age-group categories for triathlon, and overall awards for aquabike, duathlon, and relay events. A portion of proceeds supports Bridge Street Ministries to assist under-resourced youth in West Michigan. Visit the organization's website for the most recent information.
