A half marathon is a road running event of 21.0975 kilometres (13 miles 192.5 yards)—half the distance of a marathon. It is common for a half marathon event to be held concurrently with a marathon or a 5K race, using almost the same course with a late start, an early finish, or shortcuts. If finisher medals are awarded, the medal or ribbon may differ from those for the full marathon. The half marathon is also known as a 21K, 21.1K, or 13.1 miles, although these values are rounded and not formally correct.
A half marathon world record is officially recognised by World Athletics. The men's world record time, pending ratification, is 56:42, set by Jacob Kiplimo of Uganda in February 2025 in Barcelona, Spain. The women's world record, in a mixed-gender race, is 1:02:52, set by Letesenbet Gidey of Ethiopia in October 2021 in Valencia, Spain. In a female-only race, the women's world record is 1:05:16, set by Peres Jepchirchir of Kenya in October 2020.
Participation in half marathons has grown steadily since 2003, partly because it is a challenging distance, but does not require the same level of training that a marathon does. In 2008, Running USA reported that the half marathon is the fastest-growing type of race.
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Half Marathon
Half Marathon Guide is the largest calendar and educational resource in the world for half marathon runners and enthusiasts with over 10,000,000 annual visitors.
Oct 13, 2018 · Day of the Dead Half Marathon San Antonio. Oct 19, 2024. Saturday. 13.1M, 15K, 6.6M, 5K, 1M run | kids run Virtual Option. More Information San Antonio, TX. City Location Bexar County, TX. details update save claim feature. Featured Listing. 19. Day of the Dead Half Marathon Fort Worth.
Feb 15, 2023 · The most comprehensive list of Half Marathons in 2025 - 2026. Discover 100's of US Half Marathons. Find your perfect race here!
Half Marathon Guide is the largest calendar and educational resource in the world for half marathon runners and enthusiasts with over 10,000,000 annual visitors.
Jan 25, 2025 · visit the race's website for the most complete and accurate race information.
Search for half marathons by state OR search for half marathons by month. The half marathon calendar is always a work in progress for all 2025 half marathons, for all events that have set their half marathon 2025 race dates and half marathon 2026 race dates.
Nov 22, 2024 · Our half marathon training plans are designed for everyone from beginning to experienced runners, and for every lifestyle. They’ve each been designed and signed off by running coaches; the mileage load and weekly increase is designed to minimize injury and maximize conditioning.
Nov 19, 2024 · Use our half marathon training plans to get to the start and finish line feeling your best. Plus, we have the advice you need on workouts, nutrition, and more.
May 31, 2024 · A half-marathon, clocking in at 13.1 miles or 21 kilometers, is exactly half the distance of a full marathon. It's a great challenge for runners who have already completed a 5K (3.1 miles) or a 10K (6.2 miles) and are looking for their next challenge.
Explore the best half marathons in the United States for 2024-2025! Our updated list features 2245 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
