Sat, May 8, 2027 · 8:00 AM · Marianna, FL
Medal Madness 5K, 10K, & 13.1M at Marianna, FL (19)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Half Marathons in May — Page 3
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 121–180 of 271 races. Use search and filters from page 1.
Sat, May 8, 2027 · 8:00 AM · Slidell, LA
Medal Madness 5K, 10K, & 13.1M at Slidell, LA (19)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 8, 2027 · 8:00 AM · Des Moines, IA
Medal Madness 5K, 10K, & 13.1M at Des Moines, IA (19)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 8, 2027 · 8:00 AM · Fort Washington, MD
Medal Madness 5K, 10K & 13.1M at Fort Washington, MD (19)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 8, 2027 · 8:45 AM · Friday Harbor, WA
San Juan Island Half
0.4MHalf Marathon
- Price
- $18.37-$128.01
- Field size
- 500 · based on the organizer's entry cap
Sat, May 8, 2027 · 7:00 AM · Ottawa, IL
Starved Rock Country Marathon
5K10KHalf MarathonMarathonflat and fast
- Price
- $48.70-$128.20
Sun, May 9, 2027 · 7:00 AM · Denver, CO
Hometown Half Marathon/5K/10K - Denver
1M5K10KHalf Marathon
- Price
- Free-$59.10
Sun, May 9, 2027 · 7:00 AM · Fort Worth, TX
Hometown Half Marathon/5K/10K - Fort Worth
1M5K10KHalf Marathon
- Price
- Free-$67.58
Sun, May 9, 2027 · 8:00 AM · South Milwaukee, WI
Hometown Half Marathon/5K/10K - Milwaukee
1M5K10KHalf Marathon
- Price
- Free-$62.28
Sun, May 9, 2027 · 7:55 AM · San Antonio, TX
The Wiener Run - San Antonio
1M5K10KHalf Marathon
- Price
- $17.72-$40.33
Sun, May 9, 2027 · 9:00 AM · Brooklyn, NY
Brooklyn Mother's Day Half, 10K, 5K
5K10KHalf Marathon
- Price
- $54-$91.10
Sun, May 9, 2027 · 8:00 AM · Long Beach, CA
Long Beach Mother's Day Bloom & Zoom 5K, 10K, Half Marathon by Califlow Runs
1M5K10KHalf MarathonWalker-friendly · per organizer
- Price
- $16.90-$61.41
Sun, May 9, 2027 · 6:55 AM · Galveston, TX
Running Through the Decades Half Marathon - Galveston
1M5K6.55MHalf Marathon
- Price
- $17.72-$54.61
Sun, May 9, 2027 · 8:00 AM · Milwaukee, WI
Milwaukee Mother's Day Half Marathon, 10K, & 5K
5K10KHalf Marathon
- Price
- Free-$91.99
Sun, May 9, 2027 · 7:30 AM · San Antonio, TX
Run This Mother Half Marathon, 10k, 5K
5K10KHalf Marathon
- Price
- $27.50-$80.50
- Field size
- 1,300 · based on the organizer's entry cap
Sun, May 9, 2027 · 7:30 AM · Saratoga, CA
Trailquake
5K6.7MHalf MarathonWalker-friendly · per organizer
- Price
- $48.70-$96.40
Sun, May 9, 2027 · 8:00 AM · Coplay, PA
Mother's Day Run for the Roses: Half Marathon, 10K and 5K
5K10K15KHalf MarathonWalker-friendly · per organizer
- Price
- $46.58-$85.80
Fri, May 14, 2027 · 7:30 AM · Maryville, TN
Little River Rush Half Marathon
5KHalf MarathonCertified course · per organizer
- Price
- $27.50-$112.30
- Field size
- 500 · based on the organizer's entry cap
Fri, May 14, 2027 · 7:30 AM · Todd, NC
New River Marathon, Half Marathon & 5K
5KHalf MarathonMarathonCertified course · per organizer
- Price
- $30.68-$120.78
Sat, May 15, 2027 · 10:00 AM · Hueston Woods State Park, OH
Hueston Woods Trail Race
5K10K15KHalf Marathon30KUltraCertified course · per organizer
- Price
- $43.40-$80.50
Sat, May 15, 2027 · 6:30 AM · La Jolla, CA
La Jolla Half Marathon, 10K, & 5K
5K10KHalf Marathon
- Price
- $69.34-$159.44
Sat, May 15, 2027 · 7:30 AM · Saint Charles, MO
Love to Run St. Charles - 5K | 10K | HALF MARATHON
5K10KHalf Marathonflat and fast
- Price
- $9.07-$76.33
Sat, May 15, 2027 · 7:00 AM · Boise, ID
YMCA Famous Idaho Potato Marathon & Fun Runs
5K10KHalf MarathonMarathonflat and fast
- Price
- $33.63-$97.68
Sat, May 15, 2027 · 5:00 AM · Portersville, PA
Mighty Moraine Spring Multi-Sport Festival
12.88KHalf Marathon25.75K27.5K28.2KMarathonUltra
- Price
- Price on registration site
Sat, May 15, 2027 · 7:00 AM · Olympia, WA
Capital City Marathon
1.2M5MHalf MarathonMarathonrolling hills
- Price
- Free-$80.50
Sat, May 15, 2027 · 7:00 AM · Austin, TX
Hometown Half Marathon/5K/10K - Austin
1M5K10KHalf Marathon
- Price
- Free-$65.46
Sat, May 15, 2027 · 7:00 AM · Greater Atlanta, GA
Hometown Half Marathon/5K/10K - Greater Atlanta
1M5K10KHalf Marathon
- Price
- Free-$65.46
Sat, May 15, 2027 · 9:00 AM · Raleigh, NC
Pirate 5K & 13.1M at Raleigh, NC (20)
5KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 7:00 AM · Tulsa, OK
Hometown Half Marathon/5K/10K - Tulsa
1M5K10KHalf Marathon
- Price
- Free-$62.28
Sat, May 15, 2027 · 8:30 AM · Fort Smith, AR
Pirate 5K, 10K, & 13.1M at Fort Smith, AR (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 7:00 AM · Rochester, MN
Med City Marathon, presented by ActivePT
1.2M5KHalf Marathon20MMarathonCertified course · per organizer
- Price
- Free-$186.50
Sat, May 15, 2027 · 8:00 AM · Ocala, FL
Pirate 5K, 10K, & 13.1M at Ocala, FL (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 8:30 AM · DeBary, FL
Pirate 5K, 10K, & 13.1M at DeBary, FL (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 8:00 AM · Winston-Salem, NC
Pirate 5K, 10K, & 13.1M at Winston-Salem, NC (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 7:00 AM · Spicewood, TX
Pechanga Trail Run
1M5K10KHalf MarathonMarathonUltra
- Price
- $11.60-$97.46
Sat, May 15, 2027 · 7:00 AM · Paragould, AR
Get Down to the Loose Caboose
1M5K10KHalf Marathon
- Price
- $11.60-$32.80
Sat, May 15, 2027 · 8:30 AM · Bettendorf, IA
Pirate 5K, 10K, & 13.1M at Bettendorf, IA (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 7:00 AM · Rochester, MN
Hometown Half Marathon/5K/10K - Rochester
1M5K10KHalf Marathon
- Price
- Free-$63.34
Sat, May 15, 2027 · 10:00 AM · College Corner, OH
Mad Maple Trail Races @ Hueston Woods
5K10K15KHalf Marathon30KUltraCertified course · per organizer
- Price
- $48.70-$75.20
Sat, May 15, 2027 · 7:55 AM · Houston, TX
The Wiener Run - Houston
1M5K10KHalf Marathon
- Price
- $17.72-$40.33
Sat, May 15, 2027 · 8:30 AM · Charlotte, NC
Pirate 5K, 10K, & 13.1M at Charlotte, NC (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 8:30 AM · Fort Pierce, FL
Pirate 5K, 10K, 13.1M at Fort Pierce, FL (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 6:00 AM · Huntsville, AL
In It For The Long Run
5K10KHalf MarathonMarathonUltra
- Price
- $27.50-$107
Sat, May 15, 2027 · 8:00 AM · Slidell, LA
Pirate 5K, 10K, & 13.1M at Slidell, LA (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 7:00 AM · Orlando, FL
Hometown Half Marathon/5K/10K - Orlando
1M5K10KHalf Marathon
- Price
- $20.83-$63.34
Sat, May 15, 2027 · 8:00 AM · Wilmington, NC
Pirate 5K, 10K & 13.1M at Wilmington, NC (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 8:00 AM · Stockbridge, GA
Pirate 5K, 10K, & 13.1M at Stockbridge, GA (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 6:55 AM · North Little Rock, AR
Running Through the Decades Half Marathon - Little Rock
1M5K6.55MHalf Marathon
- Price
- $17.72-$54.61
Sat, May 15, 2027 · 8:00 AM · Stillwater, OK
Pirate 5K, 10K & 13.1M at Stillwater, OK (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 8:00 AM · Vancouver, WA
Pirate 5K, 10K, 13.1M at Vancouver, WA (20)
5K10KHalf Marathon
- Price
- $33.80-$70.90
Sat, May 15, 2027 · 8:00 AM · South Hamilton, MA
Barns & Blooms Half Marathon
Half Marathonflat and fast
- Price
- $89.99
- Field size
- 700 · based on the organizer's entry cap
Sat, May 15, 2027 · 3:30 PM · Hampstead, NC
Copperhead Beer Run
1M10K20KHalf Marathon
- Price
- $39.60-$371
- Field size
- 82 · based on the organizer's entry cap
5KHalf Marathon
- Price
- $39.28-$92.53
- Field size
- 2,800 · based on the organizer's entry cap
Sat, May 15, 2027 · 7:00 AM · Irving, TX
Fiesta De Mayo Half Marathon
5K10KHalf MarathonCertified course · per organizer
- Price
- Free-$181.19
- Field size
- 20 · based on the organizer's entry cap
Sun, May 16, 2027 · 7:00 AM · Sioux Falls, SD
Sioux Falls Skedaddle
1MHalf Marathon
- Price
- $32.80-$69.90
- Field size
- 650 · based on the organizer's entry cap
Sun, May 16, 2027 · 7:00 AM · St. Paul, MN
Hometown Half Marathon/5K/10K - St. Paul
1M5K10KHalf Marathon
- Price
- Free-$52.28
Sun, May 16, 2027 · 7:00 AM · Bentonville, AR
Hometown Half Marathon/5K/10K - Bentonville
1M5K10KHalf Marathon
- Price
- Free-$62.28
Sun, May 16, 2027 · 7:30 AM · East Providence, RI
Rhode Island Half Marathon & 5K
5KHalf MarathonCertified course · per organizer
- Price
- $38.99-$82.45
- Field size
- 2,000 · based on the organizer's entry cap
Sun, May 16, 2027 · 7:00 AM · Chattanooga, TN
Hometown Half Marathon/5K/10K - Chattanooga
1M5K10KHalf Marathon
- Price
- Free-$62.28
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