Ultra Races in Ontario
Upcoming16racesNext upAug 29, 2026ThroughNov 2026
Browse 16 upcoming ultra races in Ontario, with dates, venues, distances, and registration details for each listing. Also explore 5K, Road, 10K, 1K, and Trail races in Ontario, or compare options to find your next ultra start line.
Types
Trail (14) · Cause-Based (2) · Mixed (2) · Timed Ultras (2)
Upcoming Featured Races in Ontario
Ultra Races in Ontario 2026
August 2026
September 2026
Trail
SOO 200 2026
Sep 11, 2026
Sault Ste. Marie, ON
200 Mile100 Mile100K50K
Trail
2026 Haliburton Forest Trail Race
Sep 12, 2026
Haliburton, ON
50K100 Mile50 Mile12K+1
Trail
UNFINISHED Series 2026
Sep 12, 2026
Toronto, ON
6.71KUltra15 Hour
Trail
2026 BLUE BULLY ULTRA
Sep 25, 2026
The Blue Mountains, ON
50K25K5K
Trail
2026 Prescott-Russell Recreational Trail Challenge
Sep 26, 2026
Hammond, ON
12K25K50K50 Mile+1
Trail
2026 Run Off-the-Grid
Sep 26, 2026
Mattawan, ON
12.5K25K50K
October 2026
Mixed
Manotick Backyard Ultra 2026
Oct 3, 2026
Ottawa, ON
5K1K
Trail
UpRiver Running Fall Races 2026
Oct 3, 2026
Thunder Bay, ON
50K25K10K2.5K
Trail
Run The Caves 2026
Oct 4, 2026
Warsaw, ON
Ultra1K50K25K+2
Trail
Sticks n' Stones Trail Race 2026
Oct 10, 2026
Hamilton, ON
25K53K5K26.5K+2
Trail
Phoenix Trail Races 2026
Oct 17, 2026
London, ON
25K50K
Trail
Wise Raven Trail Race 2026
Oct 17, 2026
Waterloo, ON
50K5K25K10K
Trail
The Beav Trail Race 2026
Oct 31, 2026
Milton, ON
10K50K25K
