- Weather
- 46°Ftypical start
- Field size
- ~1,000 runners
- Course
- Rolling
- Elevation
- 600 ft gain · 0 ft net
Event listed as: Marathon
PR7.3Weather9.1Experience6.7
All marathons
Early October · Midwest · Double Loop
Trinity Health Probility Ann Arbor Marathon
Ann Arbor, MI
Event: Marathon (26.2)
Registration opens on the organizer's site
- Typical start temp
- 47°F(estimated)
- Field size
- ~800 runners(estimated)
- Course
- Rolling
- Elevation
- 700 ft gain · 0 ft net(estimated)
Why runners choose this race
A loop course around Ann Arbor, MI, with steady rollers that reward even pacing.
Good fit if
- · Runners who want a low-key start
Think twice if
- · You want crowds and on-course energy
Course and logistics
- Course type
- Double Loop
- Surface
- Road
- Total gain
- 700 ft(estimated)
- Total loss
- 700 ft(estimated)
- Net elevation
- 0 ft(estimated)
- Field size
- ~800 runners(estimated)
- Crowd support
- Quiet, low-key
- Entry
- Easy
- Entry fee
- $100(most recent listed price)
- Day of week
- Saturday
- Start / finish
- Start and finish in the same area
Race details
- Typical timing
- Early October
- Next confirmed date
- Saturday, October 3, 2026
- Registration
- Open now
- Region
- Midwest
- Editorial tier
- Recommended
- Prestige
- 6.0/10(estimated)
- Data last reviewed
- 2026-08-26
Event: Marathon (26.2)
Good to know
- Loop course
- Easy entry
Race-day weather
Modelled from location, month and coastal proximity — not verified race history.
ExcellentGoodWarmHeat risk
Typical start sits at 47°F — excellent marathon conditions.
Similar races
- Weather
- 47°Ftypical start
- Field size
- ~1,200 runners
- Course
- Rolling
- Elevation
- 600 ft gain
Gateway Arch Riverfront
PR7.3Weather9.0Experience7.3
- Weather
- 47°Ftypical start
- Field size
- ~1,200 runners
- Course
- Rolling
- Elevation
- 600 ft gain · 0 ft net
Event listed as: Marathon
PR7.3Weather9.0Experience6.8