2018 - 2019 Ontario Race Calendar in May

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Ontario during the month of May among 70 races.

70 races

Shoppers Drug Mart Run For Women Waterloo

10 km
2019-05-05
North America / Canada / Ontario / Waterloo
10k race
Road Running Solo Women only

Shoppers Drug Mart Run For Women Waterloo

5 km
2019-05-05
North America / Canada / Ontario / Waterloo
5k race
Road Running Solo Women only

Toronto Marathon

Half Marathon
2019-05-05 - 08:30
North America / Canada / Ontario / Toronto
Half Marathon
Road Running Solo

Toronto Marathon

5K Run
2019-05-05 - 08:00
North America / Canada / Ontario / Toronto
5k race
Road Running Solo

Toronto Marathon

5K Walk
2019-05-05 - 12:00
North America / Canada / Ontario / Toronto
5k race
Road Walking Solo

Toronto Marathon

Marathon Relay
2019-05-05
North America / Canada / Ontario / Toronto
Marathon
Road Running Relay

Toronto Marathon

10K Run
2019-05-05
North America / Canada / Ontario / Toronto
10k race
Road Running Solo

Toronto Marathon

Marathon
2019-05-05 - 07:30
North America / Canada / Ontario / Toronto
Marathon
Boston Qualifier Road Running Solo

Whole Health Mudcat Marathon Weekend

Mighty Mudcat Challenge #Fishy5k and Riverfront 10k
2019-05-10 - 19:00
North America / Canada / Ontario / Dunnville
Multiday race
Boston Qualifier Road Multiday Race Flat Solo

Whole Health Mudcat Marathon Weekend

#Fishy5k
2019-05-10 - 19:00
North America / Canada / Ontario / Dunnville
5k race
Boston Qualifier Road Running Flat Solo

Whole Health Mudcat Marathon Weekend

Mighty Mudcat Challenge #Fishy5k and Mudcat Marathon
2019-05-10 - 19:00
North America / Canada / Ontario / Dunnville
Multiday race
Boston Qualifier Road Multiday Race Flat Solo

Whole Health Mudcat Marathon Weekend

Mighty Mudcat Challenge #Fishy5k and Mudcat Half Marathon
2019-05-10 - 19:00
North America / Canada / Ontario / Dunnville
Multiday race
Boston Qualifier Road Multiday Race Flat Solo
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