| Alicia's Closet 5K | 12:00 AM | | |
| 6 Hours of Power (Alum Creek State Park) | 12:00 AM | Alum Creek State Park (Marina), 4000 Hollenback Rd, Lewis Center, OH | |
| Xpand Your Limits Strong Women's 5k | 12:00 AM | The Armory (start/finish by Metro Early College MS & HS), 880 Kinnear Rd, Columbus, OH | |
| Tie Dye 50k | 12:00 AM | 3790 State Route 370, Yellow Springs, OH | |
| Girls on the Run Central Ohio Spring 5K | 12:00 AM | John F. Wolfe Columbus Commons, 160 S High Street, Columbus, OH | |
| THE RUN FOR LA: Virtual Run for Recovery - Ohio Runners | 12:00 AM | Virtually Anywhere, Throughout Ohio, OH | |
| Healthy Kids Running Series Spring 2025 - Delaware, OH | 12:00 AM | Veterans Park, 1121 S Houk Road, Delaware, OH | |
| Hero Hustle Columbus | 12:00 AM | Wildwood Park, 785 Broadway E, Granville, OH | |
| Alum Creek Trail Race | 12:00 AM | Alum Creek State Park (Marina), 4000 Hollenback Rd, Lewis Center, OH | |
| Tunnel to Towers 5K Run & Walk - Westerville, OH | 12:00 AM | 325 N. Cleveland Ave., Westerville, OH | |
| Healthy Kids Running Series Spring 2025 - Galloway, OH | 12:00 AM | Westland High School, 146 Galloway Road, Galloway, OH | |
| Just Another Dam Race 5K and 1 Mile Fun Run | 12:00 AM | 3400 Lewis Center Road, Lewis Center, OH | |
| Standardized Brewing Birthday Celebration Beer Mile! | 12:00 AM | 5920 Evans Farm Drive, Unit A, Lewis Center, OH | |
| Luau 1M, 5K, & 10K at Mary Virginia Crites Hannan Park, Circleville, OH (21) 20 | 12:00 AM | 1230 Pontius Rd, Circleville, 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 | |
| John Bryan Trail Race | 12:00 AM | John Bryan State Park (Lower Shelter House), 3790 State Route 370, Yellow Springs, OH | |
| Field of Heroes 5k | 12:00 AM | Westerville Sports Complex, 325 N Cleveland Ave, Westerville, OH | |
| 5k Color Run and Free Kids Color Dash! | 12:00 AM | 2264 Walnut Creek Pike, Circleville, OH | |
| Who Will Carry the Flag - Memorial Day Run | 12:00 AM | Tara Glen Drive and Cheshire Road, Delaware, OH | |
| Fallen 15 Memorial Day 4-Miler and Virtual 4-Miler | 12:00 AM | Adventure Park, 260 Adventure Park Dr, Powell, OH | |
| Roosters Memorial Day 5k Run | 12:00 AM | 1312 Granville Pike, Lancaster, OH | |
| UACA Memorial Day Run | 12:00 AM | Upper Arlington Fire Station #72, 3861 Reed Rd, Columbus, OH | |
| CERC Prediction Run | 12:00 AM | 516 Maier Pl., Columbus, OH | |
| League of Legends, 100 Miles in May | 12:00 AM | Anywhere (Virtual), Columbus, OH | |
| 2FGR Presents the Run for Down Syndrome | 12:00 AM | 6000 Perimeter Dr, Dublin, OH | |
| Private School Pups 3rd Annual 5K Run/Walk | 12:00 AM | | |
| Licking County Suicide Prevention Race | 12:00 AM | Rotary Park, 925 Sharon Valley Rd, Newark, OH | |
| Mom Day 5K, 10K + Kiddo Dash | 12:00 AM | 325 Cleveland Ave, Westerville, OH | |
| The Grandma Gatewood (Virtual) Challenge | 12:00 AM | P.O. Box 403, Westerville, OH | |
| Columbus 10K presented by Barbasol | 12:00 AM | 311 W Long St, Columbus, OH | |
| Grasshoppers Spring Road & Racing (Youth Club) | 12:00 AM | 765 N High Street, Columbus, OH | |
| Healthy Kids Running Series Spring 2025 - Upper Arlington, OH | 12:00 AM | Hastings Middle School / Reed Road Park, 1850 Hastings Lane, Columbus, OH | |
| The Dayton Triathlon & Multisport Festival | 12:00 AM | 1976 Buck Creek Ln., Springfield, OH | |
| The Big Run at Fleet Feet Lewis Center | 12:00 AM | 1270 E. Powell Road,, Lewis Center, OH | |
| Veterans Network "Remember BATAAN" Ruck Challenge (Virtual Event) | 12:00 AM | 3300 Stelzer Rd (Virtual Event), Columbus, OH | |
| Grandview Street Mile | 12:00 AM | 1016 Grandview Ave, Columbus, OH | |
| Simply Women Ohio 5K | 12:00 AM | Yellow Springs High School, 420 E. Enon Road, Yellow Springs, OH | |
| Chillicothe Half Marathon | 12:00 AM | 50W Brewery, 1 N Paint St, Chillicothe, OH | |
| 5K for Thriving Beyond Breast Cancer Race Series DUBLIN, OH | 12:00 AM | 5600 Post Rd., Dublin, OH | |
| JOHNSTOWN MASTODON MARCH 5K/10K RUN & WALK | 12:00 AM | 1 Phalen Place, Johnstown, OH | |
| 2nd Annual NFYAA 5K | 12:00 AM | 260 N. Jefferson St., Utica, OH | |
| Rainbow Run | 12:00 AM | | |
| Rock the Monument Four Miler | 12:00 AM | Melvin Miller Park, 731 CHILDRENS HOME ROAD, Urbana, OH | |
| BT5K Columbus | 12:00 AM | 5200 Emerald Parkway, Dublin, OH | |
| Run for Theron | 12:00 AM | Granville High School 248 New Burg St, Granville, OH | |
| Red, White and Cards 5k | 12:00 AM | Triad Football Stadium, 7941 Brush Lake Road, North Lewisburg, OH | |
| Run with Passion 5K Run/Walk | 12:00 AM | 9801 Hyland-Croy Rd, Dublin, OH | |
| Hometown Half Marathon & 5k/10k - Columbus | 12:00 AM | Three Creeks Park (South of the Dog Park), 2748 Spangler Rd, Columbus, OH | |
| Juneteenth Walk and Run | 12:00 AM | 850 N. Nelson Rd., Columbus, OH | |
| OORANG BANG 5K RUN/WALK | 12:00 AM | 350 North Main Street, La Rue, OH | |