| Ohio University Physician Assistant Program Annual 5k | 12:00 AM | | |
| Defend Your Friend 5K | 12:00 AM | PRAIRIE OAKS METRO PARK, 2755 Amity Rd, Hilliard, OH | |
| LifeWise Hilliard 5K and 1 Miler | 12:00 AM | 5425 Center St, Hilliard, OH | |
| Heroes Not Forgotten | 12:00 AM | Orange Township Veterans Memorial, Lewis Center, OH | |
| Spooktacular 5k | 12:00 AM | 925 Sharon Valley Rd, Newark, OH | |
| Spooktacular 5K | 12:00 AM | 925 Sharon Valley Rd, Newark, OH | |
| Run with Heart | 12:00 AM | Depot Coffeehouse, 644 Miami St, Urbana, OH | |
| Adoption Possibilities 5K | 12:00 AM | Walnut Woods Metropark, 6716 Lithopolis Rd, Groveport, OH | |
| The HER SONG 5,000-Mile Challenge, by F3 COLUMBUS | 12:00 AM | | |
| OSU DPT 5K Run/Walk Fundraiser 2025 | 12:00 AM | 1801 Neil Avenue, Columbus, OH | |
| The Purple Run | 12:00 AM | 402 N Hamilton Rd, Columbus, OH | |
| The 5K for Kids' Mental Health | 12:00 AM | 96 Columbus Crew Way, Columbus, OH | |
| P.A.I.L. Remembrance and Awareness Walk | 12:00 AM | 303 W Broad St, Columbus, OH | |
| Healthy Kids Running Series Fall 2025 - Galloway, OH | 12:00 AM | Norton Middle School, 215 Norton Road, Columbus, OH | |
| Spooky Shuffle 5K, Fun Run, Walk, and Paw | 12:00 AM | Creekside Park & Arboretum, 123 Mill St, Gahanna, OH | |
| Dog Jog 5K and Fun Run | 12:00 AM | 303 W Broad St, Genoa Park, Columbus, OH | |
| WALKIN' THE DOG | 12:00 AM | 218 West St, Columbus, OH | |
| Healthy Kids Running Series Fall 2025 - Upper Arlington, OH | 12:00 AM | Hastings Middle School / Reed Road Park, 1850 Hastings Lane, Columbus, OH | |
| Enon 5k Run/Walk | 12:00 AM | Greenon Junior High School, 510 Enon-Xenia Rd, Enon, OH | |
| Healthy Kids Running Series Fall 2025 - Hilliard, OH | 12:00 AM | Merchant Park, 5467 Center Street, Hilliard, OH | |
| TWIG 1 Cancer Care Run & Walk | 12:00 AM | 710 Lincoln Ave, Lancaster, OH | |
| Royalty Run | 12:00 AM | 148 Parkland Dr, Columbus, OH | |
| 6 Hours of Power (John Bryan State Park) | 12:00 AM | John Bryan State Park (Lower Stone Shelter), 3790 State Route 370, Yellow Springs, OH | |
| CERC Columbus Marathon Cheer Zone | 12:00 AM | 1175 Bobcat Ave., Grandview Heights, OH | |
| Nationwide Children's Hospital Columbus Marathon & 1/2 Marathon, Jesse Owens 5K, 1 Mile & Kids Run | 12:00 AM | North Bank Park, 311 W Long Street, Columbus, OH | |
| Children's Champions 2025 | 12:00 AM | 525 E. Mound St., Columbus, OH | |
| John Bryan Trail Race | 12:00 AM | John Bryan State Park (Lower Shelter House), 3790 State Route 370, Yellow Springs, OH | |
| Healthy Kids Running Series Fall 2025 - Delaware, OH | 12:00 AM | Veterans Park, 1121 S Houk Road, Delaware, OH | |
| Big Nut Strut | 12:00 AM | 701 N Miller Dr, Sunbury, OH | |
| Bluffsview Bear Run | 12:00 AM | 7111 Linworth Rd, Columbus, OH | |
| 1 Day for the K.I.A. Fall 5K Run | 12:00 AM | 1858 Neil Ave, Columbus, OH | |
| Legends Of The Valley | 12:00 AM | 1479 Delashmut Ave, Columbus, OH | |
| Gourdy's Pumpkin Run: Columbus | 12:00 AM | 303 W Broad St., Columbus, OH | |
| Skeleton Skedaddle 5k | 12:00 AM | 4 Lynn Street, Richwood, OH | |
| RushRun 5k | 12:00 AM | 170 Mill Street E, Rushsylvania, OH | |
| Buckeye Lake Trick or Trot 5/10K Walk/Run | 12:00 AM | Buckeye Lake North Shore State Park, 5257 Walnut Rd., Buckeye Lake, OH | |
| The Monster Dash 5k | 12:00 AM | 9801 Hyland Croy Road, Dublin, OH | |
| Spooky Sprint- Columbus | 12:00 AM | Highland Banks Metro Park, 9466 Columbus Pike, Lewis Center, OH | |
| 9th Annual Running Scared 5K Sponsored by Nationwide Children's Hospital | 12:00 AM | 300 Washington St, Canal Winchester, OH | |
| Medal Madness 5K, & 10K at Mary Virginia Crites Hannan Park, Circleville, OH (43) 20 | 12:00 AM | 1230 Pontius Rd, Circleville, OH | |
| Living with Epilepsy Conference | 12:00 AM | Nationwide Children's Hospital Education Center Stecker Auditorium, 575 S 18th Street, Columbus, OH | |
| Howl-o-ween Paws For A Cause | 12:00 AM | 5171 N Bank Rd, Buckeye Lake, OH | |
| 26th Annual World Run Day™ Virtual Run – Dublin | 12:00 AM | United States, Dublin, OH | |
| 26th Annual World Run Day™ Virtual Run – Newark | 12:00 AM | United States, Newark, OH | |
| Healthy Kids Running Series Fall 2025 - Powell, OH | 12:00 AM | Village Green Park, 47 Hall Street, Powell, OH | |
| 26th Annual World Run Day™ Virtual Run – Westerville | 12:00 AM | United States, Westerville, OH | |
| Rally For Reagan 5K | 12:00 AM | 5172 Jackson Pike, Grove City, OH | |
| 26th Annual World Run Day™ Virtual Run – Grove City | 12:00 AM | United States, Grove City, OH | |
| 1st Annual DDR Dash Franklin County Young Marines | 12:00 AM | 3860 Bixby Rd, Groveport, OH | |
| 26th Annual World Run Day™ Virtual Run – Lancaster | 12:00 AM | United States, Lancaster, OH | |