5K Races in Illinois — 2026

There are 216 5K races in Illinois scheduled for 2026. The next is the SAO HYROX Full SIM in Oswego on October 11. Illinois 5K races run primarily October.

Operation Jake

Sat, Oct 10 · Herrin, IL Herrin

Operation Jake 5K

From $35 Closed

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OPERATION JAKE 5K RUN AND WALK

Sat, Oct 10 · Herrin, IL Herrin

5K RUN AND WALK5K RUN AND WALK

From $35 Closed

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CAI - Illinois Family 5k

Sat, Oct 10 · Oak Brook, IL Oak Brook

5k

From $75 Closed

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We Love Teachers 5K - Chicago

Sat, Oct 10 · Elk Grove Village, IL Elk Grove Village

We Love Teachers 5KWe Love Teachers 5K VirtualWe Love Teachers 5K - Educator Entry +1

From $20 Open Closing Soon

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Welcome Run 5K

Sat, Oct 10 · Lansing, IL Lansing

Welcome Run Virtual 5KWelcome Run 5KWelcome Run Kids Race (10 and under)

From $5 Open Closing Soon

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Care4 Breast Cancer Hybrid 5K

Sat, Oct 10 · Woodstock, IL Woodstock

Kids Care4 Breast Cancer 5K @WNHSVIRTUAL Care4 Breast Cancer 5KCare4 Breast Cancer 5K @ WNHS

From $15 Open Closing Soon

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El Trote De Las Calacas

Sat, Oct 10 · Elgin, IL Elgin

5k

From $35 Open

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Catholic Illini Feast Week 5K

Sat, Oct 10 · Champaign, IL Champaign

Catholic Illini Feast Week 5K

From $5 Open Closing Soon

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The Zac Plantz Foundation's Don’t Run Alone 5K Walk & Run

Sat, Oct 10 · New Lenox, IL New Lenox

5KVirtual 5K

From $35 Open Closing Soon

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Candy Corn 5K

Sat, Oct 10 · Carmi, IL Carmi

Candy Corn 5k Run

From $30 Open

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13th Annual Harvest Hustle 5K

Sat, Oct 10 · Niles, IL Niles

5K Run/Walk5K Youth Run/Walk

From $10 Closed

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36 for Colt: A Memorial Walk & Run

Sat, Oct 10 · Kewanee, IL Kewanee

36 for Colt: A Memorial Walk & Run

From $36 Open Closing Soon

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Sarcoma Stomp: Run for Research 5K/10K

Sat, Oct 10 · Carlyle, IL Carlyle

1-mile fun runSarcoma Stomp: 5K Run/Walk for ResearchVirtual 5K/10K run/walk +2

From $15 Open Closing Soon

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Miles for Mae

Sat, Oct 10 · Effingham, IL Effingham

Miles for Mae 5KMae's Mini Mile (Kids Lap)

From $10 Open Closing Soon

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Be a Hero 5K

Sat, Oct 10 · Urbana, IL Urbana

Be a Hero 5K

From $25 Open Closing Soon

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Race for Rescue 5k/10k- Supporting Coles County Animal Control

Sat, Oct 10 · Mattoon, IL Mattoon

Race for Rescue

From $25 Open Closing Soon

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4th Annual DBC Keys 2 Stability Community 5K 2026

Sat, Oct 10 · Flossmoor, IL Flossmoor

4th Annual DBC Keys 2 Stability Community 5K 2026Virtual 5K

From $25 Open Closing Soon

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Sesser Oktoberfest 5k

Sat, Oct 10 · Sesser, IL Sesser

5k Run5kWalk

From $25 Open

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Run With Kenyans Pamoja 5K Shakeout Run – Chicago

Sat, Oct 10 · Chicago, IL Chicago

5k Run

From $0 Open Closing Soon

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Fairgrounds Classic 5K Community Race

Sat, Oct 10 · Sandwich, IL Sandwich

5k

From $40 Open Closing Soon

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SAO HYROX Full SIM

Sun, Oct 11 · Oswego, IL Oswego

SAO RUNNING ROX 8:50 AM WOMEN PRO / MEN OPENSAO RUNNING ROX 9:10 WOMEN PRO / MEN OPEN / MIXED DOUBLES / MALE DOUBLESSAO RUNNING ROX 9:20 WOMEN PRO / MEN OPEN / MIXED DOUBLES / MALE DOUBLES +19

From $25 Open Closing Soon 3 spots left

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Tamborazo Blast 5K

Sun, Oct 11 · Aurora, IL Aurora

Tamborazo Blast 5K

From $40 Open

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Strides Against Stigma- GCAP 5K Walk/Run

Sun, Oct 11 · Urbana, IL Urbana

5K

From $25 Open Closing Soon

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Ham City Fall Fest 5k Run/Walk

Sat, Oct 17 · Effingham, IL Effingham

Kids 1 Mile Fun Run/WalkFall Fest 5k Run/Walk

From $20 Open Closing Soon

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FIREHOUSE 5K

Sat, Oct 17 · Oconee, IL Oconee

1 Mile WalkFIREHOUSE 5K

From $30 Open Closing Soon

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JAIMIE COX MEMORIAL RUN

Sat, Oct 17 · Roscoe, IL Roscoe

Virtual Supporter5K Run or 2- Mile Walk ParticipantKids Registration (12 and under -- Youth T-Shirt Only)

From $20 Open Closing Soon

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4th Annual St. Francis of Assisi 5K

Sat, Oct 17 · Harrisburg, IL Harrisburg

4th Annual St. Francis of Assisi 5K

From $35 Open Closing Soon

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Tunnel to Towers 5K Run & Walk - Quincy, IL

Sat, Oct 17 · Quincy, IL Quincy

Adult RegistrationFirst Responders & Military RegistrationYouth Registration 13 to 17 yrs +1

From $5 Open Closing Soon

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Harvard Dia de Los Muertos 5K

Sat, Oct 17 · Harvard, IL Harvard

5K Run/Walk

From $25 Open Closing Soon

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Greenville University Panther 5K

Sat, Oct 17 · Greenville, IL Greenville

GU Student/Faculty/Staff RateHSHS Employee Rate5K Run/Walk +1

From $10 Open Closing Soon

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Rosehill Cemetery 'Crypt' 5K Run/Walk

Sat, Oct 17 · Chicago, IL Chicago

5K Chip-Timed Run5K Fun Run/Walk

From $37 Open Closing Soon

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Lawrenceville Halloween Hustle 5K

Sat, Oct 17 · Sumner, IL Sumner

Run/Walk

Closed

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Popeye's Fall Festival 5K

Sat, Oct 17 · Chester, IL Chester

Fun Run5K Run5K walk

From $25 Open Closing Soon

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Going The Distance for the Salvation Army

Sat, Oct 17 · Urbana, IL Urbana

5K Run

From $15 Open Closing Soon

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HOW 5K

Sun, Oct 18 · Chicago, IL Chicago

HOW 5K - Walk and AfterpartyHOW 5K - WalkHOW 5K - Run and Afterparty +2

From $25 Closed

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Oktoberfest Rotary Run

Sun, Oct 18 · Bloomington, IL Bloomington

1 Mile (Untimed)5KBrat Dinner + Shirt (No Race) +1

From $10 Open Closing Soon

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Paws for a Cause 5k

Sun, Oct 18 · Urbana, IL Urbana

Paws for a Cause 5k

Closed

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Bolingbrook Howl-O-Ween 5K

Sun, Oct 18 · Bolingbrook, IL Bolingbrook

Bolingbrook Howl-O-Ween 5K

From $35 Open Closing Soon

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23rd Annual This Run's For Jack 2026

Sun, Oct 18 · Glen Ellyn, IL Glen Ellyn

TRFJ2026 5k Run/Walk IN-PERSON EVENTTRFJ VIRTUAL 10 Mile Bike RideTRFJ VIRTUAL Golf Outing (9-holes at a course near you) +1

From $25 Open Closing Soon

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Washington Park Trail Trek

Sat, Oct 24 · Springfield, IL Springfield

Virtual 5K To Support the Leland Summer Kitchen Project5K Run - Registration Closed5K Walk +1

From $0 Closed

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Forte 5K Run/Walk

Sat, Oct 24 · Channahon, IL Channahon

5K

From $27 Open Closing Soon

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Wellness Warrior Run

Sat, Oct 24 · Pinckneyville, IL Pinckneyville

Kids 1 Mile Fun RunWellness Warrior Run

From $20 Open

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Halloween Hustle 5K & Kids Dash

Sat, Oct 24 · Palatine, IL Palatine

5K Virtual5KKids Dash

From $20 Open Closing Soon 80 spots left

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Illinois State University Homecoming Town and Gown 5K

Sat, Oct 24 · Normal, IL Normal

1 Mile Fun Run/Walk (Untimed)5K - Virtual5K

From $20 Open Closing Soon

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The Fall Color 5K

Sat, Oct 24 · Lisle, IL Lisle

Virtual 5K8:00 a.m. Shotgun Start 5K

From $40 Open Closing Soon 77 spots left

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Lake Bluff PTO Pumpkin Chase

Sat, Oct 24 · Lake Bluff, IL Lake Bluff

1 Mile Fun Run5K Run

From $20 Open Closing Soon

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Paws for a Cause 5K Run. Walk. Rescue. Repeat!

Sat, Oct 24 · Greenup, IL Greenup

🐾 Paws for a Cause 5K Run. Walk. Rescue. Repeat!

From $25 Open

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STARS Girls Club Walk to End Breast Cancer Awareness Walk-a-Thon

Sat, Oct 24 · Calumet City, IL Calumet City

5k

From $20 Open

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Orient Spooky 5k!

Sat, Oct 24 · Orient, IL Orient

Orient Spooky 5k!

From $15 Open

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Marshall Rotary Jack-O-Jog

Sat, Oct 24 · Marshall, IL Marshall

1 mile walk5K Loop

From $25 Open Closing Soon

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