Ajax Race Weekend
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About the race
Ajax Race Weekend V Test is a lakeside running festival in Ajax, Ontario, Canada. Marketed as The Best Race by the Lake, the event offers distances of 1K, 5K, 10K, a half marathon, and a 4-person relay, plus combos such as 5K + Half Marathon and 5K + 10K. The atmosphere is festive and community-oriented, with fundraising opportunities for charities.
Participants may fundraise for organizations such as Autism Ontario, SickKids and United Way. Registration remains open through September 30, and the event on September 13, 2025 attracts hundreds of participants to the Ajax waterfront. Visit the organization's website for the most recent information.