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OCT
11

Chicago, IL
• 22.5 miles
The Bank of America Chicago Marathon is one of the six World Marathon Majors and one of the fastest marathon courses in the world. The flat, fast course winds through 29 Chicago neighborhoods,...
Marathon
62
OCT
16

Schaumburg, IL
• 83.0 miles
DescriptionInternet Registration has not begun yet. Check Registration Dates in details.Run or walk in your Halloween costume for nearly 2 miles while being chased by zombies! Fee includes a hot...
15
OCT
17

Chicago, IL
• 83.5 miles
$12 -$119
You’re invited to the Chicago Fall Classic Half Marathon, 10K & 5K. Finish line goods will feature local caramel apples, hot apple cider and beer (21+)!  #ChicagoFallClassic Woven between the...
5K 10K Half Marathon
111
OCT
17

Jacksonville, IL
• 3.6 miles
$32 -$37
The JMH 5K/10K, presented by Gatorade, is Saturday, Oct. 17, 2026. The JMH 5K/10K is the longest, consecutive running event in Jacksonville. 2026 is our 32nd year. Be prepared for a PR as both...
5K 10K
OCT
17

Chicago, IL
• 86.3 miles
$42 -$54
A 5K run/walk at Rosehill Cemetery in Chicago on October 17.
5K
81
OCT
18

Glen Ellyn, IL
• 74.6 miles
$25 -$40
5K run/walk benefiting melanoma research, awareness and healing.
5K 10m
17
OCT
18

Bolingbrook, IL
• 94.1 miles
$35 -$40
Love those 4-legged friends of ours? Have a soft spot for rescue animals? Or just want to get some exercise? This event is for you!   Join us for our fourth annual 6-legged 5K! Run or walk, with...
5K
16
OCT
18

Geneva, IL
• 92.7 miles
$40
Join Marklund for our 14th Annual Run, Walk & Roll–Geneva 5K and 1-Mile Event, Presented by the Fitch Foundation. This premier community event welcomes participants, fundraisers, donors, sponsors...
1m 5K
10
OCT
18

Bloomington, IL
• 26.8 miles
$10 -$35
Every third Sunday in October is our Annual Oktoberfest 5K Run and 1 Mile Fun Walk! This run/walk is a fundraiser to support BN Sunrise Rotary’s Youth Services and the CCHS Rotaract Club.  The...
1m 5K
21
OCT
23

Pingree Grove, IL
• 105.4 miles
$70 -$80
A 5K nighttime haunted trail run with ghostly actors, finishing in a celebration with music and food.
5K
85
OCT
24

Wheaton, IL
• 101.0 miles
Whether you’re a seasoned runner or just love to walk and take in the scenery, SKECHERS Wicked Wine Run is for you! Each course will be held on beautiful properties or various partner vineyards...
1K 5K
19
OCT
24

Batavia, IL
• 34.9 miles
$5 -$50
Batavia United Way is pleased to announce the 13th annual Bat Race 5K/10K on October 24, 2026, beginning at River and State Street in downtown Batavia at 8:15 a.m. for the 10K, 8:30 a.m. for the...
5K 4m 10K
77
OCT
24

Channahon, IL
• 78.2 miles
$27
Fall 5K run/walk supporting Channahon School District music programs.
5K
23
OCT
24

Palatine, IL
• 117.8 miles
$20 -$75
TRICK OR TREAT! READY TO GET YOUR HUSTLE ON? Gather your ghouls, goblins, and most spooktacular friends and family for the Halloween Hustle® 5K and Kid’s Dash! Get into the Halloween spirit and...
5K
45
OCT
24

Rolling Meadows, IL
• 117.4 miles
$25 -$55
  Howl-o-ween 5K is all about Running (or Walking) and supporting amazing animal shelters!  Join us on Saturday, October 24th, 2026 at 9:00 am CST for an exciting "Howl-o-ween Themed" event that...
5K
35
OCT
24

Normal, IL
• 28.7 miles
$20
All registration will be done online.  To save time, please complete your registration prior to arriving on site.Get ready to raise the banner high at the Town and Gown Hybrid 5K and 1-Mile Fun...
1m 5K
89
OCT
24

Danville, IL
• 102.9 miles
                                                             🍂 FALL FRENZY 2025 🍂 Free Members-Only Event — and the perfect excuse to become a KRR member if you haven’t yet! 📍 Location: Kennekuk...
25
OCT
24

Palatine, IL
• 119.3 miles
$90 -$120
What Is OUTLAST? OUTLAST is a 6-hour trail endurance challenge where runners complete a 5K every hour, on the hour. Each lap must be finished within the hour to stay in the event. If you finish...
2
OCT
24

Lisle, IL
• 101.8 miles
$45 -$65
Spend a magical fall morning running or walking through a scenic course with trees just at the cusp of their full autumnal color change. You’ll experience a unique course with rolling terrain...
5K
34
OCT
24

Springfield, IL
• 32.8 miles
$30 -$35
This event has been renamed and moved to September 5th.   CLICK HERE to go to the LEVEE Trail Trek.
5K
34