Half Marathon Races in St Thomas
Upcoming1raceNext upSep 27, 2026ThroughSep 2026
Browse 1 upcoming half marathon races in St Thomas, with dates, venues, distances, and registration details for each listing. From neighborhood fun runs to established city events, find your next half marathon start line in St Thomas.
Distances
10K (1) · 5K (1) · Half Marathon (1)
Types
Road (1)
Upcoming Featured Races in St Thomas
Half Marathon Races in St Thomas 2026
Spotlight races
September 2026
Road
WINDSOR WATERFRONT HALF MARATHON & 5KM 2026
Sep 13, 2026
Windsor, ON
Half Marathon5K
Road
2026 Great Rift Community Half Marathon
Sep 27, 2026
Hamilton, ON
5KHalf Marathon
Trail
2026 Run for the Grapes Half Marathon & 5K
Sep 27, 2026
Lincoln, ON
5KHalf Marathon
Road
2026 Run4Health
Sep 27, 2026
Walkerton, ON
5K1KHalf Marathon10K
Road
Big Little Run 2026
Sep 27, 2026
Guelph, ON
5K10KHalf Marathon
Road
Railway City Road Races 2026 Live Run
Sep 27, 2026
St Thomas, ON
Half Marathon5K10K
October 2026
Road
2026 PHM Run for the Residents
Oct 3, 2026
Markham, ON
Half Marathon
Road
2026 Lighthouse to Lighthouse Half Marathon & 5K
Oct 4, 2026
Kincardine, ON
Half Marathon5K
Road
Oakville 21.1 2026
Oct 4, 2026
Oakville, ON
5KHalf Marathon10K
Road
TCS Toronto Waterfront Marathon 2026
Oct 17, 2026
Toronto, ON
Half Marathon5KMarathon
Road
2026 Niagara Falls 10k, Half & Marathon
Oct 25, 2026
Niagara Falls, ON
10KHalf MarathonMarathon
Road
2026 U.S. & International Registrants, Niagara Falls 10k, Half & Marathon
Oct 25, 2026
Niagara Falls, ON
10KMarathonHalf Marathon