- Weather
- 49°Ftypical startModelled estimate
- Field size
- ~500 runners
- Course
- Flat
- Elevation
- 150 ft gain · 0 ft net
Event listed as: Marathon
PR9Weather9Experience6
Early October · Mountain West · Out-and-Back
Antelope Island Marathon - 26.2 - 13.1 - 10K - 5K
Syracuse, UT · Friday, October 9, 2026
Event: Full Marathon Slow Racers - Over 6 Hrs 30 Min to finish
- Best for PR
- Boston Qualifier
Registration opens on the organizer's site
Typical start
49°
Cooler than 46% of U.S. marathons
Modeled historical conditions
Elevation gain
150ft
Flatter than 64% of races
Estimated total climb
Field size
400
Larger than 4% of races
Estimated field
PR potential
9.1/10
Ahead of 63% of races
Almanac model
Percentiles compare this race against all 224 U.S. marathons in the Almanac.
Course profile
150 ft gain · 0 ft net
Flat course, out-and-back.
0510152026.2
Race-day weather
Modeled from location, month and coastal proximity, not verified race history.
6 AM
41°
Start
49°
Midday
59°
ExcellentGoodWarmHeat risk
Typical start sits at 49°F, excellent marathon conditions.
Typical dew point 27°F, 6% chance of precipitation, wind around 7 mph. All modeled.
The bottom line
A quietly fast race that does not ask for much beyond honest pacing.
Antelope Island Marathon - 26.2 - 13.1 - 10K - 5K is a strong choice for a PR attempt, and Syracuse offers very little meaningful elevation. The tradeoff is atmosphere: expect long quiet stretches and few spectators.
Why runners choose this race
A out-and-back course around Syracuse, UT, with very little meaningful elevation change.
The case for it
- PR attempts
- Boston qualification
- Runners who want a low-key start
The tradeoffs
- You want crowds and on-course energy
Course and logistics
- Course type
- Out-and-Back
- Surface
- Road
- Profile
- Flat
- Total gain
- 150 ft(estimated)
- Total loss
- 150 ft(estimated)
- Net elevation
- 0 ft(estimated)
- Field size
- ~400 runners(estimated)
- Crowd support
- Quiet, low-key
- Entry
- Easy
- Entry fee
- $95(most recent listed price)
- Day of week
- Friday
- Start / finish
- Start and finish in the same area
Race details
- Typical timing
- Early October
- Next confirmed date
- Friday, October 9, 2026
- Registration
- Open now
- Region
- Mountain West
- Editorial tier
- Recommended
- Data last reviewed
- 2026-08-26
- Best for PR
- Boston Qualifier
- Out-and-back
- Flat course
- Easy entry
Similar races
Races with a comparable profile.
- Weather
- 45°Ftypical startModelled estimate
- Field size
- ~1,000 runners
- Course
- Flat
- Elevation
- 200 ft gain
Flat course along Boise River Greenbelt
PR9Weather9Experience7
- Weather
- 47°Ftypical startModelled estimate
- Field size
- ~600 runners
- Course
- Flat
- Elevation
- 120 ft gain · 0 ft net
Event listed as: Marathon
PR9Weather9Experience7