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Half Marathon Races in Illinois (Page 2)

Browse 73+ upcoming half marathon races in Illinois.

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Shawnee Hills Trail Races

Aug 22, 2026
Ozark, IL
100M62.1M31.1M1/2 Marathon
86°
63°
12%

Comlara 12 Hour Sunrise-Sunset, 6 Hour, 3 Hour and Hour of Power Trail Run

Aug 22, 2026
Hudson, IL
51M25.5M12.75M4.25M
84°
60°
16%

Tough Mudder - Chicago

Aug 29, 2026
Rockford, IL
8HR10M3M
81°
60°
15%

Mud Sweat and Gears MTB Race

Aug 29, 2026
Hudson, IL
31M15M7M1M
84°
59°
16%

Run to Breast Cancer 5K/10K/13.1 CHICAGO/EVANSTON

Aug 29, 2026
Chicago, IL
13.1M10K5K1M
82°
65°
15%

Summer Sizzler- Greater Chicago

Aug 30, 2026
Aurora, IL
50M6.2M3.1M1M
81°
61°
16%

The Ultimate SUCK

Sep 4, 2026
Cuba, IL
50M25M10M
82°
59°
13%

Naperville Trails Half Marathon

Sep 5, 2026
Wheaton, IL
13.1M
80°
58°
12%

Naperville Trails Half Marathon & 10K

Sep 5, 2026
Wheaton, IL
13.1M10K
80°
58°
12%

Timely Nonsense

Sep 12, 2026
Chicago, IL
124HR12HR6HR3HR
78°
61°
12%

Hidden Gem Half Marathon

Sep 12, 2026
Flossmoor, IL
13.1M
78°
57°
15%

National Chocolate Day: Run for Chocolates 5K/10K/13.1 CHICAGO/EVANSTON

Sep 12, 2026
Chicago, IL
13.1M10K5K1M
78°
61°
12%

Divas Half Marathon and 5K

Sep 19, 2026
Chicago, IL
13.1M5K
76°
59°
12%

St. Jude Walk

Sep 19, 2026
Bloomington, IL
13.1M6.2M3.1M1M
79°
53°
14%

Fox Valley Marathon Races

Sep 20, 2026
St. Charles, IL
26.2M20M13.1M5K
75°
53°
11%

Stone Bridge Half Marathon and 5k

Sep 26, 2026
Roscoe, IL
13.1M3.1M
68°
47°
12%

Belleville Main Street Marathon & Half Marathon

Sep 26, 2026
Belleville, IL
26.2M13.1M
81°
55°
9%

Oktoberfest Run 5K/10K/13.1 CHICAGO/EVANSTON

Sep 26, 2026
Chicago, IL
13.1M10K5K1M
73°
55°
12%

Belleville Main Street Marathon

Sep 26, 2026
Belleville, IL
26.2M13.1M
81°
55°
9%

Run for the Hills

Sep 26, 2026
McHenry, IL
13.1M10K
70°
50°
13%