Tri Millennium
Tri Millennium is a triathlon, aquabike, and duathlon race on July 23–24, 2027 in Walker, MI, with entry fees from $45 to $139.
- Date
- July 23–24, 2027 (274 days to go)
- Location
- 1400 Maynard Ave SW, Walker, MI
- Price
- $45–$139
- Sports
- TriathlonAquabikeDuathlon
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.
Events
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
83°
Typical Low
61°
Chance of Rain
30%
Based on US Climate Normals data from E Grand Rapids, 7 mi from the venue.
About Walker, MI
Nearest Airport
GRR
Gerald R. Ford International Airport · 12 mi
Time Zone
Eastern Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
What Are You
Waiting For?
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.
274
Days to train
- Race
- Tri Millennium
- Date
- July 23–24, 2027
- Location
- 1400 Maynard Ave SW, Walker, MI
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About These Sports
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Triathlon
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.
Aquabike
A swim followed by a bike — a triathlon without the run. Sprint and Olympic distances, often alongside a tri at the same venue.
Duathlon
Run, bike, run. The multi-sport format without the swim. Two disciplines, one race — a great bridge between running and triathlon.
More Triathlon races near Walker, MI
Frequently Asked Questions
What is the Tri Millennium?
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How do I register for the Tri Millennium?
Tri Millennium
Jul 23, 2027