Search for October half marathons! Search for your next October half marathon at the October Half Marathon Calendar USA website page. The calendar currently has October half marathons 2026, and will have October half marathons 2027 as they roll in. For races that are late in posting their October half marathon date, we do our best to get those dates updated throughout the year, as race directors and race organizers update their websites. Updates can also be submitted via ou

Search for your next December half marathon at the December Half Marathon Calendar USA website page. The calendar currently has December half marathons 2026, and will have December half marathons 2027 as they roll in. For races that are late in posting their date, we do our best to get those dates updated throughout the year. Updates can also be submitted via our easy "Submit or update a half marathon" button on our home page. We strive to update half marathon dates one ye

September Half Marathons https://www.halfmarathonsearch.com/half-marathons-september | September Half Marathon Calendar | Search for September Half Marathons 2026 | September Half Marathon Search | Half Marathon Calendar USA | Half Marathons in September

November Half Marathons https://www.halfmarathonsearch.com/half-marathons-november | November Half Marathon Calendar | Search for November Half Marathons 2025 | November Half Marathon Search | Half Marathon Calendar USA | Half Marathons in November