Marathons in Ontario, Canada 2026

3 marathons and running events

Cities

Ottawa 1 Ottawa 1 Toronto 1
🏃 Ottawa
Featured May 23, 2026
Canada

Canada Army Run Ottawa / Ottawa Race Weekend

Ottawa, Ontario Full Marathon, Half Marathon, 10K, 5K, Kids' Run
BQ Certified 45,000 runners
CAD 85.00 entry View Details →
🏃 Ottawa
Registration Open May 24, 2026
Canada

Tamarack Ottawa Marathon

Ottawa, Ontario Full Marathon, Half Marathon, 10K, 5K, Kids' Run
BQ Certified 24,000 runners
CAD 130.00 entry View Details →
🏃 Toronto
Registration Open Oct 18, 2026
Canada

TCS Toronto Waterfront Marathon

Toronto, Ontario Full Marathon, Half Marathon, 5K
BQ Certified 25,000 runners
CAD 120.00 entry View Details →