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Running calendar near Ajax 2025-2026

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Explore the top running races near Ajax for 2025-2026! We've gathered 12 exciting races in the area. Check out our detailed list below to find your next local race.

May 2025
May
25
Sunday

Run for Women - Markham

5 km 10 km
May
31
Saturday

Running4Home

5 km 10 km
June 2025
Jun
7
Saturday

Oak Ridges Moraine Adventure Relay

Multisport
Jun
15
Sunday

Stouffville Main Street 5K

5 km
Jun
21
Saturday

The Whole Enchilada

Trail Run 4 km 8 km 25 km 50 km
Jun
22
Sunday

Uxbridge Run for the Diamond

Trail Run 5 km 10 km
Jun
22
Sunday

Run for Women - Whitby

5 km 10 km
August 2025
Aug
2
Saturday

Race for Plates

5 km
Aug
23
Saturday

The 5K Foam Fest - Toronto, ON

Obstacle Run 5 km
September 2025
Sep
13
Saturday

Ajax Race Weekend

5 km 10 km 21 km
Sep
21
Sunday

Ajax Waterfront Race

5 km 15 km 20 km
October 2025
Oct
25
Saturday

5 Peaks Cider Run

Trail Run 7 km 14 km 21 km
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