Race Discovery
Tri Millennium
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2025 - Tri Millennium

Walker, Michigan, United States View on map
Jul 25, 2025 – Jul 26, 2025 (America/Detroit local time)
Triathlon

2025 distances

Triathlon

Kids Tri (Ages 6-10)

50 yd swim 1.5 mile bike 1k run

Jul 25, 2025 3.2K 6:00 PM
$45.00
Closed

Kids Tri (Ages 11-15)

About a 100 yd swim 3 mile bike 2k run

Jul 25, 2025 6.4K 6:30 PM
$45.00
Closed

Sprint Tri

Swim 750 meters Bike 20k Run 5k

Jul 25, 2025 25.6K 7:15 AM
$150.00
Closed

Sprint Tri - Athena (Female 165lb+)

Jul 25, 2025 25.7K 7:15 AM
$150.00
Closed

Sprint Tri - Clydesdale (Male 220lb+)

Jul 25, 2025 25.7K 7:15 AM
$150.00
Closed

Sprint Tri Relay

Swim 750 meters Bike 20k Run 5k

Jul 25, 2025 25.6K 7:15 AM
$185.00
Closed

Olympic Tri

Swim 1.5 km Bike 40 km Run 10 km

Jul 25, 2025 Ultra 7:30 AM
$160.00
Closed

Olympic Tri - Athena (Female 165+lb)

Jul 25, 2025 Ultra 7:30 AM
$160.00
Closed

Olympic Tri - Clydesdale (Male 220+lb)

Jul 25, 2025 Ultra 7:30 AM
$160.00
Closed

Olympic Tri Relay

Swim 1.5 km Bike 40 km Run 10 km

Jul 25, 2025 Ultra 7:30 AM
$200.00
Closed

Duathlon

Sprint Duathlon

Run 2.5k Bike 20k Run 5k

Jul 25, 2025 29.9K 7:15 AM
$150.00
Closed

Olympic Duathlon

Run 5 km Bike 40 km Run 10 km

Jul 25, 2025 Ultra 7:30 AM
$160.00
Closed

Sprint Duathlon Relay

Jul 25, 2025 25.4K 7:15 AM
$185.00
Closed

Aquabike

Sprint Aquabike

Swim 750 Meter Bike 20 km

Jul 25, 2025 Half-Marathon 7:15 AM
$140.00
Closed

Olympic Aquabike

Swim 1500 meters Bike 40 km

Jul 25, 2025 41.2K 7:30 AM
$150.00
Closed

Race-day weather

Conditions on July 25, 2025 — historical Open-Meteo data.

Temp (°C)
Minimum temperature (recorded on race day) 21.6° / Maximum temperature (recorded on race day) 28.0°
Feels Like (°C)
Minimum feels like — heat index / wind chill (recorded on race day) 21.6° / Maximum feels like — heat index / wind chill (recorded on race day) 31.7°
Peak wind (km/h)
Strongest wind of the day (recorded on race day)
12.7
Precip (mm)
Precipitation over the day (recorded on race day)
7.0mm
Humidity
Mean relative humidity (recorded on race day)
88.0%
Sunrise
Sunrise at the start line on July 25, 2025 (EDT)
Sunset
Sunset at the start line on July 25, 2025 (EDT)
Daylight
Hours between sunrise and sunset on race day
14h 44m

The sun rises at 6:27 AM and sets at 9:11 PM local time (EDT) in Walker on July 25, 2025 — 14h 44m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

Reviews

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2025 results — Tri Millennium

265 finishers across 13 distances · leading places in the Sprint Tri

View all results
Leading finishers of the 2025 Tri Millennium
Place Name Time Pace
1 Sam Wilkinson 1:10:30 4:21 /mi
2 Jonathan Langworthy 1:11:53 4:26 /mi
3 Christopher Gregory 1:12:14 4:28 /mi
4 Eric Olsen 1:15:22 4:39 /mi
5 Elisabeth Wardell 1:16:06 4:42 /mi

Every finisher is on the results page, filterable by distance, gender and age group.

Other races near Walker

Different organizers, within 40 miles, in the next three months

Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 7 Walker events

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