Sat, May 1, 2027 · 8:00 AM · Des Moines, IA
Des Moines Women's Half Marathon, 10K & 5K
5K10KHalf Marathon
- Price
- $49.53-$118.48
- Field size
- 270 · based on the organizer's entry cap
Half Marathons in May
Every upcoming Half Marathon race we know about in May. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Showing 60+ of 171 races · loading the full list…
Sat, May 1, 2027 · 7:45 AM · South Bend, IN
Run Happy 50K (and other happy distances)
10KHalf MarathonMarathonUltra
- Price
- $43.40-$59.30
Sat, May 1, 2027 · 7:30 AM · Ohiopyle, PA
Great Allegheny Ohiopyle Marathon Race Festival: Marathon, Half Marathon, 10K and 5K
5K10K15KHalf MarathonMarathon
- Price
- $43.40-$85.80
Sat, May 1, 2027 · 5:30 PM · Costa Mesa, CA
The Hoag OC Marathon Running Festival
5KHalf MarathonMarathon
- Price
- $50.05-$201.56
Sat, May 1, 2027 · 7:00 AM · Eminence, MO
The Bluffs Trail Runs
1M5K10K15KHalf MarathonMarathonrolling hills
- Price
- $16.90-$122.90
Sat, May 1, 2027 · 10:15 AM · Augusta, MO
Drink MO Wine Run - 1 Mile, 5K, 10K & Half Marathon
1M5K10KHalf Marathonhilly
- Price
- $38.96-$76.33
Sat, May 1, 2027 · 7:00 AM · Kansas City, MO
Hometown Half Marathon/5K/10K - Kansas City
1M5K10KHalf Marathon
- Price
- Free-$52.28
Sat, May 1, 2027 · 7:00 AM · Nashville, TN
Hometown Half Marathon/5K/10K - Nashville
1M5K10KHalf Marathon
- Price
- Free-$67.58
Sat, May 1, 2027 · 7:30 AM · Tacoma, WA
Tacoma City Marathon / Half / Ghost / 10K / 5K / 1K
5K10KHalf MarathonMarathonflat and fastCertified course · per organizer
- Price
- $13.20-$232.55
Sat, May 1, 2027 · 8:00 AM · Longview, TX
Luau 5K, 10K, & 13.1M at Longview, TX (17)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 1, 2027 · 8:00 AM · Holiday, FL
Luau 5K, 10K, & 13.1M at Holiday, FL (17)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 1, 2027 · 8:00 AM · Stillwater, OK
Luau 5K, 10K & 13.1M at Stillwater, OK (17)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 1, 2027 · 8:30 AM · DeBary, FL
Luau 5K, 10K, & 13.1M at DeBary, FL (18)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 1, 2027 · 6:00 AM · Winter Park, FL
Sunshine Double
5K10KHalf MarathonMarathonUltraCertified course · per organizer
- Price
- $32.80-$149.40
Sat, May 1, 2027 · 8:00 AM · Long Beach, CA
Run, Fiesta, Repeat - Cinco de Mayo 5K, 10K, & Half Marathon
5K10KHalf MarathonWalker-friendly · per organizerCertified course · per organizer
- Price
- $27.49-$48.69
Sat, May 1, 2027 · 8:00 AM · Ballwin, MO
The SPRING SPRUNG 5k-10k 10K Ruck and Half Marathon
5K10KHalf Marathon
- Price
- $42.34-$74.14
- Field size
- 1,000 · based on the organizer's entry cap
Sat, May 1, 2027 · 7:00 AM · Durham, NC
Garmin Marathon Durham
5K10KHalf MarathonMarathonrolling hills
- Price
- $41.70-$103.50
Sat, May 1, 2027 · 6:55 AM · Houston, TX
Running through the Decades Half Marathon - Houston
1M5K6.55MHalf Marathon
- Price
- $17.72-$54.61
Sat, May 1, 2027 · 6:55 AM · Oklahoma City, OK
Running through the Decades Half Marathon - Oklahoma City
1M5K6.55MHalf Marathon
- Price
- $17.72-$54.61
Sat, May 1, 2027 · 8:00 AM · Iowa City, IA
Luau 5K, 10K, & 13.1M at Iowa City, IA (17)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 1, 2027 · 8:00 AM · Beaumont, TX
Luau 5K, 10K, & 13.1M at Beaumont, TX (17)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 1, 2027 · 7:00 AM · Summerville, SC
Charleston Craft Beer Half Marathon - 5K
5KHalf Marathon
- Price
- $33.74-$87.34
Sat, May 1, 2027 · 8:00 AM · Marietta, SC
Knock On Wood Trail Run/Hike - 13.1 & 10k
10KHalf Marathon650 ft gain
- Price
- $38.10-$43.40
Sat, May 1, 2027 · 7:00 AM · Frederick, MD
Frederick Running Festival
5KHalf Marathon
- Price
- $22.50-$142.35
Sat, May 1, 2027 · 6:30 AM · Riceville, IA
IronHorse - USATF Certified & Sanctioned
5K10KHalf MarathonMarathonCertified course · per organizer
- Price
- $16.90-$69.90
- Field size
- 120 · based on the organizer's entry cap
Sat, May 1, 2027 · 6:00 PM · Farmington, UT
May the Fourth Race Half Marathon, 10K, 5K
5K10KHalf Marathon
- Price
- $43.35-$1,041
Sat, May 1, 2027 · 7:30 AM · Topeka, KS
TopCity Half Marathon
5KHalf Marathon
- Price
- $38.86-$70.89
- Field size
- 504 · based on the organizer's entry cap
10KHalf MarathonMarathonflat and fastCertified course · per organizer
- Price
- $64.85-$107.25
- Field size
- 2,550 · based on the organizer's entry cap
Sun, May 2, 2027 · 6:30 AM · Boise, ID
Boise River Marathon
5K10KHalf MarathonMarathonflat and fast
- Price
- $38.10-$64.60
Sun, May 2, 2027 · 7:00 AM · St Louis, MO
Hometown Half Marathon/5K/10K - St Louis
1M5K10KHalf Marathon
- Price
- Free-$54.28
Sun, May 2, 2027 · 7:30 AM · Longmont, CO
Longmont Half & 5k (LM Half)
5KHalf MarathonWalker-friendly · per organizer
- Price
- $39-$64
Sun, May 2, 2027 · 9:00 AM · Portland, OR
Cinco de Mayo
0.4M5K10KHalf Marathon
- Price
- Free-$80.50
- Field size
- 25 · based on the organizer's entry cap
Sun, May 2, 2027 · 7:00 AM · Cordova, TN
Hometown Half Marathon/5K/10K - Memphis
1M5K10KHalf Marathon
- Price
- $20.83-$52.28
Sun, May 2, 2027 · 7:00 AM · Dallas, TX
Hometown Half Marathon/5K/10K - Dallas
1M5K10KHalf Marathon
- Price
- Free-$65.46
Sun, May 2, 2027 · 8:40 AM · Leonard, MI
2 PARKS TRAIL HALF MARATHON AND 5K
5KHalf Marathon
- Price
- $33.30-$54.50
Sun, May 2, 2027 · 8:30 AM · Morristown, NJ
2027 Superhero Half Marathon and Relay
Half Marathon
- Price
- $61.01-$82.36
Sun, May 2, 2027 · 6:30 AM · Fort Collins, CO
The Colorado Marathon
5K10KHalf MarathonMarathon
- Price
- $48.70-$170.60
Sun, May 2, 2027 · 7:30 AM · East Providence, RI
Providence Rhode Races
1K5KHalf MarathonMarathonCertified course · per organizer
- Price
- $13.60-$106.71
Sun, May 2, 2027 · 8:00 AM · Long Beach, CA
May the 4th be with You- The Empire Strides Back 5K, 10K, & Half Marathon by Califlow Runs
1M5K10KHalf Marathon
- Price
- $20.08-$69.89
Sun, May 2, 2027 · 6:55 AM · Fort Worth, TX
Running through the Decades Half Marathon - Fort Worth
1M5K6.55MHalf Marathon
- Price
- $17.72-$54.61
Sun, May 2, 2027 · 6:55 AM · Tulsa, OK
Running through the Decades Half Marathon - Tulsa
1M5K6.55MHalf Marathon
- Price
- $17.72-$54.61
Sun, May 2, 2027 · 7:15 AM · Schaumburg, IL
Chicagoland Spring Marathon, Half Marathon & 10K
10KHalf MarathonMarathon
- Price
- $45.99-$114.99
Sun, May 2, 2027 · 8:00 AM · Gloucester, MA
Twin Lights Half Marathon
Half Marathon
- Price
- $89.59
- Field size
- 1,100 · based on the organizer's entry cap
Fri, May 7, 2027 · 6:30 PM · Harpers Ferry, IA
Friends of Yellow River State Forest Trail Run
5K10KHalf Marathon
- Price
- $38.10-$59.30
Sat, May 8, 2027 · 7:00 AM · Versailles, KY
Pisgah Farms & Furlongs Half Mare-athon & 10K
10KHalf Marathon
- Price
- $68.09-$83.99
- Field size
- 420 · based on the organizer's entry cap
Sat, May 8, 2027 · 8:30 AM · Berkeley, CA
Grizzly Peak Trail Run
10KHalf MarathonMarathonUltra
- Price
- Free-$96.40
Sat, May 8, 2027 · 8:00 AM · Lewes, DE
Race4Warriors 5K, 10K & Half Marathon Challenges!
5K10KHalf MarathonCertified course · per organizer
- Price
- $27.50-$64.60
Sat, May 8, 2027 · 7:00 AM · Colorado Springs, CO
Hometown Half Marathon/5K/10K - Colorado Springs
1M5K10KHalf Marathon
- Price
- Free-$46.28
Sat, May 8, 2027 · 8:00 AM · Chicago, IL
Hometown Half Marathon/5K/10K - Greater Chicago
1M5K10KHalf Marathon
- Price
- Free-$63.34
Sat, May 8, 2027 · 9:00 AM · Rockaway Beach, NY
RUN ROCKAWAY BEACH NYC MOTHER'S DAY HALF MARATHON 5K & 1 MILE WALK
1M5KHalf Marathon
- Price
- $48.70-$69.90
Sat, May 8, 2027 · 8:30 AM · Sacramento, CA
Beer City Half™ Sacramento
1M5K10KHalf Marathon
- Price
- $27.50-$93.75
Sat, May 8, 2027 · 8:00 AM · Amesbury, MA
Enjoy Your Life Happy Half Marathon & Friendly 5K
5KHalf Marathon
- Price
- $38.10-$91.10
Sat, May 8, 2027 · 8:00 AM · Pflugerville, TX
Medal Madness 5K, 10K & 13.1M at Pflugerville, TX (19)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 8, 2027 · 8:00 AM · Sapulpa, OK
Medal Madness 5K, 10K, & 13.1M at Sapulpa, OK (19)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 8, 2027 · 8:00 AM · Gadsden, AL
Medal Madness 5K, 10K, & 13.1M at Gadsden, AL (18)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 8, 2027 · 8:30 AM · Deland, FL
Medal Madness 5K, 10K, & 13.1M at Deland, FL (19)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 8, 2027 · 7:00 AM · Smiths Grove, KY
P.A.C.E. Races for Youth Athletic Scholarships
Half MarathonMarathon
- Price
- $50-$75
Sat, May 8, 2027 · 8:30 AM · Richmond, KY
Medal Madness 5K, 10K & 13.1M at Richmond, KY (18)
5K10KHalf Marathon
- Price
- $33.80-$70.90
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