Allerton Races
USATF CertifiedSaturday, April 11, 2026
Monticello, Illinois
The Experience
Trail/Road Half Marathon, 10K Run/Walk, or nighttime Trail-Glo 5K Run/Walk, benefitting Robert Allerton Park!
Trail-Glo 5K start time is 8:30PM 11 April.
Half Marathon and 10K start time is 9:00AM 12 April.
More race info at our website!
Help us help Make-A-Wish families! For our 14th consecutive year, Allerton Races is fundraising for Make-A-Wish Illinois. Be a "Wish Warrior" by donating $10 or more, and you'll get a special logo on the sleeve of your race T! (If you register with a race T) Donate to Make-A-Wish Illinois by clicking HERE!
Course Information
USATF Certified Course
IL18002JW · Expires 2028
Certified Course Name
Alpine Races Half Marathon
Net Drop
0.00
m/km
Separation
0.0%
start to finish
This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Race Details
Race Day
Saturday, April 11, 2026 · 4/12/2026 09:00
Start Location
515 Old Timber Rd, Monticello, IL 61856
Course
Loop
Also Offers
Giveaway
Tech T-Shirt
Registration
Register online — $38
Race Website
Official race information
Past Results
View previous race results
Race Performance
2:11:02
10:00/mi pace
1:16:15
5:49/mi pace
96
46% female · 54% male
5 states
Avg age: 41
Finish Time Distribution (2025)
1:55:51
Top 25%
2:30:46
Top 75%
Historical Weather
☀
Avg High
64°F
☽
Avg Low
43°F
☂
Precip
0.09 in
🍃
Wind
14.8 mph
More races in Illinois
The Experience
Trail/Road Half Marathon, 10K Run/Walk, or nighttime Trail-Glo 5K Run/Walk, benefitting Robert Allerton Park!
Trail-Glo 5K start time is 8:30PM 11 April.
Half Marathon and 10K start time is 9:00AM 12 April.
More race info at our website!
Help us help Make-A-Wish families! For our 14th consecutive year, Allerton Races is fundraising for Make-A-Wish Illinois. Be a "Wish Warrior" by donating $10 or more, and you'll get a special logo on the sleeve of your race T! (If you register with a race T) Donate to Make-A-Wish Illinois by clicking HERE!
Course Information
USATF Certified Course
IL18002JW · Expires 2028
Certified Course Name
Alpine Races Half Marathon
Net Drop
0.00
m/km
Separation
0.0%
start to finish
This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Race Details
Race Day
Saturday, April 11, 2026 · 4/12/2026 09:00
Start Location
515 Old Timber Rd, Monticello, IL 61856
Course
Loop
Also Offers
Giveaway
Tech T-Shirt
Registration
Register online — $38
Race Website
Official race information
Past Results
View previous race results
Race Performance
2:11:02
10:00/mi pace
1:16:15
5:49/mi pace
96
46% female · 54% male
5 states
Avg age: 41
Finish Time Distribution (2025)
1:55:51
Top 25%
2:30:46
Top 75%