When in May are most half marathons held?
The busiest weekend in Ohio is May 22 and May 23, with 3 of them, 2 of those on Sunday, May 23. Every one of them is on a Saturday or a Sunday.
Race calendar · May 2027 · Ohio
Half Marathons in Ohio in May 2027
Every Half Marathon in Ohio in May 2027, all 8 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
What the field actually runs
May Half Marathons, By the Numbers
2:34:50Median finish time
1:41:32Median winning time
24Median field size
7May half marathons with published results
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Nov 12, 2026.
When in May
The May Race Weekends
Half marathons are not spread evenly across May. Here is how the calendar actually falls, weekend by weekend, which is the part worth knowing before you book a trip or plan a taper around one.
By the numbers
The Biggest Field
The largest field of any May Half Marathon in Ohio, from the most recent published results.
Ohio Half Marathons by City in May
All Half Marathons in Ohio in May
8 total Sat, May 1, 2027The Little Miami Trail Challenge @ John Bryan Yellow Springs, OHFrom $65Details Sat, May 8, 2027The Sink or Swim @ Caesar Creek State Park Waynesville, OHFrom $65Details Sat, May 15, 2027Hueston Woods Trail Race Hueston Woods State Park, OHFrom $65Details Sat, May 22, 2027Hometown Half Marathon/5K/10K - Cincinnati Hamilton, OHFrom $55Details Sun, May 23, 2027Hometown Half Marathon/5K/10K - Columbus Columbus, OHFrom $55Details Sun, May 23, 2027WALLINGFORD HALF MARATHON & 5K RACES Bellevue, OHFrom $60Details Sat, May 29, 2027Fools Peninsula, OHFrom $70Details Sat, May 29, 2027Alum Creek Trail Race Lewis Center, OHFrom $65Details
Common Questions About Running a May Half Marathon in Ohio
What is a good Half Marathon time?
Across the 7 of these May half marathons with published results from past editions, the median finisher ran 2:34:50, and the median winning time was 1:41:32. So anything under 2:34:50 puts you in the faster half of a typical field. That is the middle of these RunSignup fields, walkers and charity entrants included, not a national average.
How big is a typical May Half Marathon field?
The median one finished 24 runners, across the 7 of these May half marathons with published results from past editions. Most are far smaller than the big-city events people picture, which means less crowding at the start and a friendlier field, with a last recorded finisher at 3:58:26.
Are there trail half marathons in Ohio in May?
Yes, 2 races around Ohio get you off the pavement: 1 is a trail race, and 1 mixes road and trail.