Running Races in Ajax
Upcoming1raceNext upOct 4, 2026ThroughOct 2026
Explore 1 upcoming running races in Ajax, including 5Ks, 10Ks, half marathons, marathons, and trail runs, or compare race dates, venues, and registration links to plan your next event in Ajax.
Upcoming Featured Races in Ajax
Race Calendar Ajax 2026
Spotlight races
August 2026
Trail
2026 The Wooly Bully Races
Aug 16, 2026
Stella, ON
1K5K10K
Road
A Run for Chris 2026
Aug 16, 2026
Hamilton, ON
5KKids Run
Road
Achilles International Canada Hope & Possibility® 2026
Aug 22, 2026
Toronto, ON
5K
Road
PUMA Toronto Women's Summer 10K/5K 2026
Aug 22, 2026
Toronto, ON
10K5K
Trail
Timber24 Relay 2026
Aug 22, 2026
Oro-Medonte, ON
192K
Trail
2026 Summer Sunset Series
Aug 27, 2026
Hamilton, ON
1K5K
Road
2026 24 Hour To Empower Running Challenge
Aug 29, 2026
Barrie, ON
5KUltra
Trail
2026 North of 7 Challenge
Aug 29, 2026
Cloyne, ON
Road
SuperPower 2026 - Toronto
Aug 29, 2026
Toronto, ON
10K5K15K
Obstacle
The 5K Foam Fest - Toronto, ON 2026
Aug 29, 2026
Uxbridge, ON
5K
Road
The Runway 2026
Aug 29, 2026
Waterloo, ON
2 Miles5 Miles200m
Road
BK5K Waterloo 2026
Aug 30, 2026
Waterloo, ON
5KFun Run
September 2026
Trail
2026 5 Peaks Trail Running Series: Albion Hills
Sep 5, 2026
Caledon, ON
Trail
2026 Island Lake Classic
Sep 7, 2026
Orangeville, ON
10K0.2K5K
Trail
2026 Summer Shores 5K/8K
Sep 7, 2026
Hamilton, ON
8K1K5K
Trail
2026 Haliburton Forest Trail Race
Sep 12, 2026
Haliburton, ON
50K100 Mile50 Mile12K+1
Road
2026 Oasis ZooRun Toronto
Sep 12, 2026
Toronto, ON
5K10K
Road
Superhero Stomp 2026
Sep 12, 2026
Barrie, ON
Fun RunKids Run
Trail
UNFINISHED Series 2026
Sep 12, 2026
Toronto, ON
6.71KUltra15 Hour
Trail
2026 Beat Bechtel
Sep 13, 2026
Waterloo, ON
5K
Road
2026 Crazy 8km
Sep 13, 2026
Hamilton, ON
8K
Trail
2026 Don Doan Dash
Sep 13, 2026
Brampton, ON
5K10K
Showing 24 of 112 races
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Past years
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