Sat, Oct 31, 2026
Houston, TX
Entry is $45 now and rises to $50 after Aug 1, 2026, so registering before then saves $5.
The Monster Mash is a Halloween costume run through Houston streets, part of a recurring holiday race series. The crowd shows up dressed for it, so expect plenty of elaborate getups at the start line. Karbach Brewing hosts the after-party, which is the obvious draw once you cross the finish.
Free race emails
In for this one or still deciding, keep race season near Houston on your radar: a Monday look ahead and a Thursday rundown of the weekend's races.
Two helpful emails per week. No spam. Unsubscribe anytime.
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
Traveling for this race? The map shows hotels and rentals in and around Houston — pan or zoom to compare what's nearby.
The map is provided by Stay22. If you book through it, RunSesh may earn a commission at no extra cost to you — it never affects the races we list.
Join a local run club. Houston Striders, In Flight Running, Houston Harriers and others in Houston welcome runners of all paces, and a weekly group run is the most reliable way to hold a training block together.
