2017 - 2018 Ontario Marathon Calendar

Browse our Marathon Calendar for races organized in Ontario among 30 races.

Refine by

30 races

Cornwall Run to endMS

Marathon
April 29, 2017 Race day in about 1 month
Canada / Ontario / cornwall
Marathon
Boston Qualifier Flat Road Running Fast

Waterloo Marathon & Half Marathon

Waterloo Marathon
April 30, 2017 Race day in about 1 month
Canada / Ontario / Bechtel Park, Waterloo
Marathon
Boston Qualifier Charity

Goodlife Fitness Toronto Marathon

Marathon
May 07, 2017 Race day in about 2 months
Canada / Ontario / Toronto
Marathon
Boston Qualifier Road Running

Goodlife Fitness Toronto Marathon

Marathon Relay
May 07, 2017 Race day in about 2 months
Canada / Ontario / Toronto
Marathon
Road Running Relay

Mississauga Marathon

Mississauga Marathon
May 07, 2017 Race day in about 2 months
Canada / Ontario / Mississauga
Marathon
Fast

Whole Health Mudcat Marathon Weekend

Mudcat Marathon
May 13, 2017 Race day in about 2 months
Canada / Ontario / Dunnville
Marathon
Boston Qualifier Flat

SudburyROCKS!!! Marathon

SudburyROCKS!!! Marathon
May 14, 2017 Race day in about 2 months
Canada / Ontario / Greater Sudbury
Marathon
Boston Qualifier Walk Charity Relay

Scotiabank Ottawa Marathon

ScotiaBank Ottawa Marathon
May 28, 2017 Race day in 2 months
Canada / Ontario / Ottawa
Marathon
Boston Qualifier Walk Road Running Wheelchair

Conquer the Canuck Marathon Ultra Trail Weekend

Marathon
June 11, 2017 Race day in 3 months
Canada / Ontario / Cambridge
Marathon
Trail

Niagara Ultra

Marathon
June 17, 2017 Race day in 3 months
Canada / Ontario / Niagara-on-the-Lake
Marathon
Fast

Friendly Massey Marathon

Friendly Massey Marathon
July 16, 2017 Race day in 4 months
Canada / Ontario / Massey
Marathon
Boston Qualifier

The County Marathon

The County Marathon
October 01, 2017 Race day in 6 months
Canada / Ontario / Picton
Marathon
Boston Qualifier Walk Road Running

The County Marathon

The County Marathon Team Challenge
October 01, 2017 Race day in 6 months
Canada / Ontario / Picton
Marathon
Road Running Relay

Detroit Free Press Marathon

Detroit Free Press Marathon
October 15, 2017 Race day in 7 months
Canada / Ontario / Detroit
Marathon
Boston Qualifier Flat Road Running Fast Wheelchair

Niagara Falls International Marathon

Niagara Falls International Marathon
October 15, 2017 Race day in 7 months
Canada / Ontario / Niagara Falls
Marathon
Boston Qualifier Flat Road Running Fast