Clear All
Half Marathons Near Ontario
Showing the next 45 runs that match your filters
Featured
Toronto Marathon
Point to point BQ course
Date: May 3, 2026 - Sunday
Size: 10,000+ participants
Location: Toronto, Ontario
Mississauga Marathon
Date: Apr 26, 2026 - Sunday
Size: 5,000 - 10,000 participants
Location: Mississauga, Ontario
GBTC Grand Island Half Marathon
Date: May 2, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Grand Island, New York
Toronto Marathon
Date: May 3, 2026 - Sunday
Size: 10,000+ participants
Location: Toronto, Ontario
Are you organizing a running event?
Georgina Spring Fling
Date: May 3, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Sutton, Ontario
Medved Madness Trail Races
Date: May 3, 2026 - Sunday
Size: 100 - 500 participants
Location: Honeoye Falls, New York
Buffalo Marathon
Date: May 23-24, 2026 - Saturday to Sunday
Size: 5,000 - 10,000 participants
Location: Buffalo, New York
Sudbury Rocks Marathon
Date: May 24, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Sudbury, Ontario
The Great Mansfield Outdoors Run
Date: May 30, 2026 - Saturday
Size: 100 - 500 participants
Location: Mulmur, Ontario
Lucifer's Crossing
Date: May 31, 2026 - Sunday
Size: 100 - 500 participants
Location: Town of Ithaca, New York
12 Mile Creek Trail Half Marathon
Date: Jun 6, 2026 - Saturday
Size: 100 - 500 participants
Location: St. Catharines, Ontario
Don McMaster 12 Mile Creek Trail Half Marathon & 7k
Date: Jun 6, 2026 - Saturday
Size: 100 - 500 participants
Location: St. Catharines, Ontario
Honda Waterfront Run
Date: Jun 7, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Barrie, Ontario
Butter Tart Trot
Date: Jun 13, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Midland, Ontario
Look Out Trail Race
Get 5% Off - Use Code LORunGuide5
Date: Jun 13, 2026 - Saturday
Size: 100 - 500 participants
Location: North Bay, Ontario
Kawartha Sun Run
Date: Jun 14, 2026 - Sunday
Size: 100 - 500 participants
Location: Kawartha Lakes, Ontario
Niagara Ultra
Date: Jun 20, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Niagara-on-the-Lake, Ontario
Summit 700
Get $5 Off - Use Code RG2026
Date: Jul 11, 2026 - Saturday
Size: 500 - 1,000 participants
Location: The Blue Mountains, Ontario
Keuka Outlet Trail Half Marathon & 10K
Date: Jul 18, 2026 - Saturday
Size: 100 - 500 participants
Location: Penn Yan, New York
Get Active In Temiskaming Chocolate Run/Walk
Date: Jul, 2026 (TBD)
Size: 100 - 500 participants
Location: Temiskaming Shores, Ontario
ENDURrun Sport 80 KM
Date: Aug 9-16, 2026 - Sunday to Sunday
Size: 500 - 1,000 participants
Location: Woolwich, Ontario
Calabogie Peaks Trail Run - Spartan Trail
Date: Aug 23, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Greater Madawaska, Ontario
Black Diamond Express Half Marathon & 5K
Date: Aug, 2026 (TBD)
Size: 100 - 500 participants
Location: Mendon, New York
Oak Tree Half Marathon & 5K Run/Walk
Date: Sep 6, 2026 - Sunday
Size: 100 - 500 participants
Location: Geneseo, New York
Get Active In Temiskaming Colour Run/Walk
Date: Sep, 2026 (TBD)
Size: 100 - 500 participants
Location: Coleman Township, Ontario
North Bay Road Race
Get 5% Off - Use Code RUNGUIDES
Date: Sep 12, 2026 - Saturday
Size: 500 - 1,000 participants
Location: North Bay, Ontario
Georgina Marathon and Half Marathon
Date: Sep 13, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Sutton, Ontario
Finger Lakes Festival of Races
Date: Sep, 2026 (TBD)
Size: 500 - 1,000 participants
Location: Watkins Glen, New York
Rochester Half Marathon | 5K | Kids 1/2 Mile
Date: Sep 20, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Rochester, New York
Blue Bully Ultra
Date: Sep 25-27, 2026 - Friday to Sunday
Size: 100 - 500 participants
Location: The Blue Mountains, Ontario
Cedar Ridge Hilly Half Marathon
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Carlow/Mayo, Ontario
Big Little Run
Date: Sep 27, 2026 - Sunday
Size: 100 - 500 participants
Location: Guelph/Eramosa, Ontario
Albion Ascent Trail Race
Date: Sep, 2026 (TBD)
Size: 100 - 500 participants
Location: Hamilton, Ontario
Mighty Niagara Half Marathon & Hospice Dash 5K
Date: Oct 3, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Niagara County, New York
Muskoka Marathon Weekend
Get $10 Off - Use Code RUNGUIDES26
Date: Oct 3-4, 2026 - Saturday to Sunday
Size: 1,000 - 5,000 participants
Location: Bracebridge, Ontario
Oakville 21.1
Date: Oct 4, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Oakville, Ontario
Prince Edward County Marathon
Date: Oct 4, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Picton, Ontario
Jell-O Half Marathon & 7K
Date: Oct, 2026 (TBD)
Size: 100 - 500 participants
Location: Le Roy, New York
Thornbury Turkey Trot
Date: Oct, 2026 (TBD)
Size: 500 - 1,000 participants
Location: Thornbury, Ontario
TCS Toronto Waterfront Marathon
Date: Oct 17-18, 2026 - Saturday to Sunday
Size: 10,000+ participants
Location: Toronto, Ontario
Blue Mountain Spartan Trifecta Weekend
Date: Oct 17-18, 2026 - Saturday to Sunday
Size: 1,000 - 5,000 participants
Location: The Blue Mountains, Ontario
Niagara Falls Marathon
Date: Oct 25, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Niagara Falls, Ontario
EVL Halloween Half Marathon, 5k, Half Marathon Relay
Date: Oct, 2026 (TBD)
Size: 100 - 500 participants
Location: Ellicottville, New York
Hamilton Marathon Road2Hope
Date: Oct 31-Nov 1, 2026 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Hamilton, Ontario
Winter Warrior Half Marathon, Quarter Marathon & Half Marathon Relay
Date: Jan, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Rochester, New York
Chilly Half Marathon
Date: Mar, 2027 (TBD)
Size: 1,000 - 5,000 participants
Location: Burlington, Ontario
