Houston 25K

Houston 25K takes place in Houston, Texas, on November 22, 2026 as part of the Houston Marathon Warm-up Series, a set of races organized by the HMSA that let runners gauge their training progress. Three distances are offered with staggered starts: the 25K (15.5 miles) at 7:00 AM, the 10 Mile at 7:15 AM and the 5K at 7:30 AM. Awards go to the top three overall and masters finishers in each race, plus age groups; every participant receives a shirt and a medal, and a ceremony follows the race.

The 25K is a natural fit if you are training for a winter marathon: it is a long, timed effort that slots neatly into a 16- to 18-week build, roughly two months out from race day. The 10 Mile does the same job for half marathoners, while the 5K is a chance for runners of every age and level to join in. Use it as a pace check rather than an all-out race if your goal event is still ahead.