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Ultra Races in Illinois (Page 2)
Browse 38+ upcoming ultra races in Illinois.
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Golden Harvest Half Marathon & 5k/10k - Greater Chicago
Sep 27, 2026
Chicago, IL
50M
13.1M
6.2M
3.1M
1M
72°
55°
12%
The Hennepin Hundred
Oct 3, 2026
Sterling, IL
100M
100M
50M
31.1M
70°
45°
10%
Hennepin Hundred
Oct 3, 2026
Sterling, IL
100M
50M
31.1M
70°
45°
10%
Site M: Redacted
Oct 3, 2026
Chandlerville, IL
50M
30M
74°
48°
10%
Arrowhead Endurance Run
Oct 10, 2026
Johnston City, IL
24HR
24HR
12HR
12HR
6HR
3HR
73°
48°
12%
Des Plaines River Trail Races
Oct 10, 2026
Waukegan, IL
50M
31.1M
Marathon
1/2 Marathon
63°
45°
14%
Shake Your Trail Feather Trail Run
Oct 17, 2026
Charleston, IL
31.1M
16M
8M
5K
66°
45°
12%
Richardson Farm Fall 5K & 10K with Family 1 Mile Adventure Run
Oct 18, 2026
Spring Grove, IL
100M
10K
5K
1M
60°
38°
13%
Spooky Sprint - Greater Chicago
Oct 25, 2026
Chicago, IL
50M
13.1M
6.2M
3.1M
1M
59°
43°
13%
Fancy Nonsense 25k/50k
Oct 31, 2026
Willow Springs, IL
31.1M
15.5M
5M
57°
36°
12%
Tunnel Hill 100
Nov 14, 2026
Vienna, IL
100M
50M
58°
36°
15%
The Forge Trail Run Festival
Nov 14, 2026
Lemont, IL
37.2M
18.6M
13.1M
6.2M
50°
33°
11%
Forge Trail Run Festival
Nov 14, 2026
Lemont, IL
37.3M
18.6M
12.4M
10K
50°
33°
11%
Long Grove Turkey Trot 5K & 8K
Nov 26, 2026
Long Grove, IL
100M
5M
5K
44°
30°
9%
Chi Town Turkey Trot 5K & 10K
Nov 26, 2026
Chicago, IL
100M
10K
5K
45°
31°
9%
Schaumburg Turkey Trot Half Marathon & 5K
Nov 28, 2026
Elk Grove Village, IL
100M
13.1M
5K
43°
29°
10%
Turkey Trails - Greater Chicago
Nov 28, 2026
Shorewood, IL
50M
13.1M
6.2M
3.1M
1M
43°
28°
11%
Candy Cane Course- Greater Chicago
Dec 12, 2026
Chicago, IL
50M
9.3M
6.2M
3.1M
1M
39°
26°
11%
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