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Marathons Found In Ontario in Spring

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Marathons in Ontario in Spring 2026

findarace.com is Canada's favourite event discovery site. Check out our list of Spring 2026 Marathons in Ontario below.

Race Calendar: Marathons Found In Spring

2026 Beneva Mississauga Marathon

Mississauga, ON
26 Apr 26

Georgina Spring Fling 2026

Georgina, ON
03 May 26
$69.90 - $143.19

Marathons For Mental Health 5k/10k Race

London, ON
24 May 26
$45.41 - $61.59
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