Allerton Races

Monticello, IL | Saturday, April 11, 2026Registration OpenCharity / Cause

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 !

Available Distances

Awards & Prizes

Participant Giveaway

13.1 Miles: Tech T-Shirt

10K: Tech T-Shirt

5K: Cotton T-Shirt (FREE if also registering for a Saturday event!)

Registration & Pricing

Distance	Price	Opens	Closes
13.1 Miles	$38.00	Oct 27	Apr 12
10K	$33.00	Oct 27	Apr 12
5K	$25.00	Oct 27	Apr 11

Past Results

10K

Year	Finishers	Median Time	Fastest Time
2025	116	1:04:39	42:58
2024	119	1:07:41	43:30
2023	114	1:06:00	41:42
2022	346	1:04:34	37:17
2021	280	1:09:15	39:15
2020	194	1:06:08	39:04

5K

Year	Finishers

Interested in this race?

2025	190	43:16	20:25
2024	143	40:19	21:24
2023	157	41:24	22:31
2022	166	41:59	22:25
2021	324	39:16	19:42
2020	190	43:04	22:08

Year	Finishers	Median Time	Fastest Time
2025	96	2:11:27	1:16:15
2024	46	2:06:28	1:15:40
2023	89	2:11:26	1:15:14
2022	216	2:04:38	1:17:21
2021	161	2:15:06	1:25:44
2020	95	2:07:16	1:23:59