Upcoming Running Races in Ontario
Find the best running races in Ontario! From 5Ks to marathons, explore upcoming races and plan your next challenge.
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📅 5w to go
Ultra Marathon
Trail
Tally in the Valley 2025 - 100 Miler
Hamilton, Ontario
July 26, 2025
07:00AM
Tally in the Valley Trail Race 2025
161km (100 miles)
July 2025
📅 5w to go
Ultra Marathon
Trail
Tally in the Valley 2025 - Gong Show Elimination Event
Hamilton, Ontario
July 26, 2025
08:00AM
Tally in the Valley Trail Race 2025
Elimination - up to 24 hours
July 2025
📅 5w to go
Ultra Marathon
Wilderness Traverse 2025 - Wilderness Traverse 24-Hour Adventure Race
Sudbury Region, Ontario
July 26, 2025
Wilderness Traverse 2025
Ultra Marathon
July 2025
📅 5w to go
5k
Mixed
The 5K Foam Fest Canada Tour 2025 - London, ON
London, Ontario
July 26, 2025
8:00AM
The 5K Foam Fest - London, ON 2025
5km
July 2025
📅 5w to go
Other Distances
Trail
Apex Adventure Challenge 2025 - Apex Adventure Challenge
Sudbury, Ontario
July 27, 2025
09:00AM
Apex Adventure Challenge 2025
30-45km
July 2025
📅 5w to go
Ultra Marathon
Trail
Tally in the Valley 2025 - 12 Hour Night Race
Hamilton, Ontario
July 27, 2025
08:00PM
Tally in the Valley Trail Race 2025
12 hours
July 2025
📅 5w to go
Other Distances
Trail
Tally in the Valley 2025 - 7k One Loop
Hamilton, Ontario
July 27, 2025
09:00AM
Tally in the Valley Trail Race 2025
7km
July 2025
📅 5w to go
Other Distances
Trail
Tally in the Valley 2025 - 21k Three Loops
Hamilton, Ontario
July 27, 2025
09:00AM
Tally in the Valley Trail Race 2025
21km
July 2025
📅 6w to go
5k
Trail
Grit & Grind Trail Series Carlington Hill Edition 2025 - 5K
Ottawa, Ontario
July 30, 2025
6:45PM
Grit & Grind Trail Series Carlington Hill Edition 2025
5km
July 2025
📅 6w to go
Kids Races
Trail
Grit & Grind Trail Series Carlington Hill Edition 2025 - 2K Kids Run
Ottawa, Ontario
July 30, 2025
6:15PM
Grit & Grind Trail Series Carlington Hill Edition 2025
2km
July 2025
📅 6w to go
Other Distances
Persistence Backyard Ultra 2025 - Persistence Backyard Ultra
Arva, Ontario
August 2, 2025
Persistence Backyard Ultra 2025
Other Distances
August 2025
📅 6w to go
5k
Road
5k Race/Walk
Whitby, Ontario
August 2, 2025
8:00 AM
5k Race for Plates 2025
5km
August 2025
📅 6w to go
5k
Road
5k Race/Walk
Whitby, Ontario
August 2, 2025
8:00 AM
5k Race for Plates 2025
5K
August 2025
📅 6w to go
Other Distances
Road
Bluewater International Granfondo 2025 - The Bluewater 150K
Sarnia, Ontario
August 3, 2025
09:00AM
Bluewater International Gran Fondo 2025
150km
August 2025
📅 6w to go
Other Distances
Road
Bluewater International Granfondo 2025 - First Responder Championship 100K
Sarnia, Ontario
August 3, 2025
09:00AM
Bluewater International Gran Fondo 2025
100km
August 2025
📅 6w to go
Other Distances
Road
Bluewater International Granfondo 2025 - The Lambton 100K
Sarnia, Ontario
August 3, 2025
09:00AM
Bluewater International Gran Fondo 2025
100km
August 2025
📅 6w to go
Other Distances
Road
Bluewater International Granfondo 2025 - The Grove 30K
Sarnia, Ontario
August 3, 2025
09:00AM
Bluewater International Gran Fondo 2025
30km
August 2025
📅 6w to go
Other Distances
Road
Bluewater International Granfondo 2025 - The Sarnia 50K
Sarnia, Ontario
August 3, 2025
09:00AM
Bluewater International Gran Fondo 2025
50km
August 2025
📅 7w to go
5k
Road
The Runners Shop Sunset Shuffle 2025 - Sunset Shuffle 5K
Toronto, Ontario
August 7, 2025
7:00PM
The Runners Shop Sunset Shuffle 2025
5K
August 2025
📅 7w to go
Other Distances
Road
The Runners Shop Sunset Shuffle 2025 - Sunset Shuffle 1 Mile
Toronto, Ontario
August 7, 2025
6:50PM
The Runners Shop Sunset Shuffle 2025
1 Mile
August 2025
📅 7w to go
5k
Road
The Runners Shop Sunset Shuffle 2025 - Sunset Shuffle 5K and 1 Mile Combo
Toronto, Ontario
August 7, 2025
6:50PM
The Runners Shop Sunset Shuffle 2025
5K + 1 Mile Combo
August 2025
📅 7w to go
Ultra Marathon
Trail
Beast of Burden Ultra Marathon 2025 - 25 Miler
Lockport, New York
August 9, 2025
10:00AM
Beast of Burden - Summer 2025
25 miles
August 2025
📅 7w to go
Ultra Marathon
Trail
Beast of Burden Ultra Marathon 2025 - 100 Miler
Lockport, New York
August 9, 2025
10:00AM
Beast of Burden - Summer 2025
100 miles
August 2025
📅 7w to go
Ultra Marathon
Trail
Beast of Burden Ultra Marathon 2025 - 50 Miler
Lockport, New York
August 9, 2025
10:00AM
Beast of Burden - Summer 2025
50 miles
August 2025
📅 7w to go
Under 5K
Road
Butter Tart Festival Race 2025 - In-Person Butter Tart 1K
Burlington, Ontario
August 9, 2025
9:00AM
Butter Tart Festival Race 2025
1km
August 2025
📅 7w to go
Other Distances
Mixed
Great Waterfront Trail Adventure 2025 - Waterfront Trail Champion (Fundraising Option)
Hamilton, Ontario
August 9, 2025
11:00PM
Great Waterfront Trail Adventure 2025
640 km (8 days)
August 2025
📅 7w to go
Challenges
Trail
Falling Water Trail 2025 - The Bruce Deuce Challenge
Eugenia, Ontario
August 9, 2025
9:00AM
Falling Water Trail Marathon/ Half Marathon 2025
Marathon + Half Marathon
August 2025
📅 7w to go
Kids Races
Mixed
Great Waterfront Trail Adventure 2025 - Youth Rider
Hamilton, Ontario
August 9, 2025
11:00PM
Great Waterfront Trail Adventure 2025
640 km (8 days)
August 2025
📅 7w to go
Other Distances
Road
Butter Tart Festival Race 2025 - In-Person Butter Tart 3K
Burlington, Ontario
August 9, 2025
9:30AM
Butter Tart Festival Race 2025
3km
August 2025
📅 7w to go
5k
Trail
The 5K Foam Fest 2025 - St. Catharines/Niagara Region
Lincoln, Ontario
August 9, 2025
8:00AM
The 5K Foam Fest - St. Catharines/Niagara Region, ON 2025
5km
August 2025
📅 7w to go
5k
Road
Butter Tart Festival Race 2025 - Virtual Butter Tart 5K
Burlington, Ontario
August 9, 2025
Anytime
Butter Tart Festival Race 2025
5km
August 2025
📅 7w to go
Other Distances
Road
Great Waterfront Trail Adventure 2025 - Personal Support Vehicle
Hamilton, Ontario
August 9, 2025
11:00PM
Great Waterfront Trail Adventure 2025
Support Vehicle (8 days)
August 2025
📅 7w to go
Other Distances
Mixed
Great Waterfront Trail Adventure 2025 - Great Waterfront Trail Adventure
Hamilton, Ontario
August 9, 2025
11:00PM
Great Waterfront Trail Adventure 2025
640 km (8 days)
August 2025
📅 7w to go
Other Distances
Road
Butter Tart Festival Race 2025 - Virtual Butter Tart 3K
Burlington, Ontario
August 9, 2025
Anytime
Butter Tart Festival Race 2025
3km
August 2025
📅 7w to go
5k
Road
Butter Tart Festival Race 2025 - In-Person Butter Tart 5K
Burlington, Ontario
August 9, 2025
9:30AM
Butter Tart Festival Race 2025
5km
August 2025
📅 7w to go
Marathon
Trail
Falling Water Trail 2025 - Trail Marathon
Eugenia, Ontario
August 9, 2025
9:00AM
Falling Water Trail Marathon/ Half Marathon 2025
42.2km
August 2025
📅 7w to go
Half Marathon
Road
ENDURrun 2025 - Stage 1
Waterloo Region, Ontario
August 10, 2025
The ENDURrun 2025
21.1km
August 2025
📅 7w to go
10k
XTERRA Sleeping Giant 2025 - 10K Trail Run
Thunder Bay, Ontario
August 10, 2025
XTERRA Sleeping Giant 2025
10k
August 2025
📅 7w to go
Other Distances
XTERRA Sleeping Giant 2025 - Full Distance Duathlon
Thunder Bay, Ontario
August 10, 2025
XTERRA Sleeping Giant 2025
Other Distances
August 2025
📅 7w to go
Other Distances
XTERRA Sleeping Giant 2025 - Trail Half Marathon
Thunder Bay, Ontario
August 10, 2025
XTERRA Sleeping Giant 2025
Other Distances
August 2025
📅 7w to go
5k
XTERRA Sleeping Giant 2025 - 5K Trail Run
Thunder Bay, Ontario
August 10, 2025
XTERRA Sleeping Giant 2025
5k
August 2025
📅 7w to go
Half Marathon
Trail
Falling Water Trail 2025 - Trail Half Marathon
Eugenia, Ontario
August 10, 2025
9:00AM
Falling Water Trail Marathon/ Half Marathon 2025
21km
August 2025
📅 7w to go
15k
Road
ENDURrun 2025 - Stage 2
Waterloo Region, Ontario
August 11, 2025
The ENDURrun 2025
15km
August 2025
📅 7w to go
Other Distances
Cross Country
ENDURrun 2025 - Stage 3
Waterloo Region, Ontario
August 12, 2025
The ENDURrun 2025
30km
August 2025
📅 7w to go
10k
Road
ENDURrun 2025 - Stage 4
Waterloo Region, Ontario
August 13, 2025
The ENDURrun 2025
10km
August 2025
📅 7w to go
Other Distances
Trail
ENDURrun 2025 - Stage 5
Waterloo Region, Ontario
August 14, 2025
The ENDURrun 2025
25km
August 2025
📅 7w to go
10k
Road
ENDURrun 2025 - Stage 6
Waterloo Region, Ontario
August 15, 2025
The ENDURrun 2025
10km
August 2025
📅 8w to go
Under 5K
Road
Tim Horton's Night Run 2025 - Kid's 1km
Windsor, Ontario
August 16, 2025
5:30 PM
Tim Horton's Night Run 2025
1km
August 2025
📅 8w to go
Under 5K
Road
Tim Horton's Night Run 2025 - Kid's 200m Dash
Windsor, Ontario
August 16, 2025
5:30 PM
Tim Horton's Night Run 2025
200m
August 2025
📅 8w to go
5k
Road
Tim Horton's Night Run 2025 - 5K Walk/Run
Windsor, Ontario
August 16, 2025
5:45 PM
Tim Horton's Night Run 2025
5km
August 2025
📅 8w to go
5k
Mixed
Mapleton Sunflower Run 2025 - 5km Race
Moorefield, Ontario
August 16, 2025
10:00AM
Mapleton Sunflower Run 2025
5km
August 2025
📅 8w to go
10k
Mixed
Mapleton Sunflower Run 2025 - 10km Race
Moorefield, Ontario
August 16, 2025
10:00AM
Mapleton Sunflower Run 2025
10km
August 2025
📅 8w to go
Fun Runs & Family Runs
Mixed
Mapleton Sunflower Run 2025 - 2km Kids and Family Race
Moorefield, Ontario
August 16, 2025
10:00AM
Mapleton Sunflower Run 2025
2km
August 2025
📅 8w to go
Half Marathon
Road
Demi Marathon de la Voie Verte 2025 - Half Marathon
Chelsea, Quebec
August 17, 2025
8:00AM
Demi Marathon de la voie verte 2025
21.1km
August 2025
📅 8w to go
Under 5K
Road
Demi Marathon de la Voie Verte 2025 - 1k
Chelsea, Quebec
August 17, 2025
11:00AM
Demi Marathon de la voie verte 2025
1km
August 2025
📅 8w to go
5k
Road
Demi Marathon de la Voie Verte 2025 - 5k
Chelsea, Quebec
August 17, 2025
8:20AM
Demi Marathon de la voie verte 2025
5km
August 2025
📅 7w to go
Marathon
Road
ENDURrun 2025 - Stage 7
Waterloo Region, Ontario
August 17, 2025
The ENDURrun 2025
42.2km
August 2025
📅 9w to go
Team/Relay
Trail
Timber24 2025 - 8 Person Team Relay
Oro Medonte, Ontario
August 23, 2025
04:00AM
Timber24 Relay 2025
192km relay (8 x 8km for 24 hours)
August 2025
📅 9w to go
Team/Relay
Trail
Timber24 2025 - 4 Person Team Ultra Relay
Oro Medonte, Ontario
August 23, 2025
04:00AM
Timber24 Relay 2025
192km ultra relay (4 x 8km for 24 hours)
August 2025
📅 9w to go
5k
Virtual
PUMA Toronto Women's Summer 2025 - Virtual 5K
Toronto, Ontario
August 23, 2025
Anytime
PUMA Toronto Women's Summer 10K 5K 2025
5km
August 2025
📅 9w to go
10k
Virtual
PUMA Toronto Women's Summer 2025 - Virtual 10K
Toronto, Ontario
August 23, 2025
Anytime
PUMA Toronto Women's Summer 10K 5K 2025
10km
August 2025
📅 9w to go
5k
Road
PUMA Toronto Women's Summer 2025 - 5K
Toronto, Ontario
August 23, 2025
8:15AM
PUMA Toronto Women's Summer 10K 5K 2025
5km
August 2025
📅 9w to go
10k
Road
PUMA Toronto Women's Summer 2025 - 10K
Toronto, Ontario
August 23, 2025
8:00AM
PUMA Toronto Women's Summer 10K 5K 2025
10km
August 2025
📅 9w to go
Half Marathon
Road
BackRoads to Port Stanley Run 2025 - 21.1 km
Port Stanley, Ontario
August 23, 2025
10:00AM
BackRoads to Port Stanley Run 2025
21.1 km
August 2025
📅 9w to go
Other Distances
Road
BackRoads to Port Stanley Run 2025 - 33.6 km
Port Stanley, Ontario
August 23, 2025
10:00AM
BackRoads to Port Stanley Run 2025
33.6 km
August 2025
📅 9w to go
5k
Mixed Terrain
The 5K Foam Fest 2025 - Toronto, ON (Aug 23)
Uxbridge, Ontario
August 23, 2025
8:00AM
The 5K Foam Fest - Toronto, ON 2025
5km
August 2025
📅 9w to go
Other Distances
Road
BackRoads to Port Stanley Run 2025 - 13 km
Port Stanley, Ontario
August 23, 2025
10:00AM
BackRoads to Port Stanley Run 2025
13 km
August 2025
📅 9w to go
Under 5K
Road
BackRoads to Port Stanley Run 2025 - 3.5 km
Port Stanley, Ontario
August 23, 2025
10:00AM
BackRoads to Port Stanley Run 2025
3.5 km
August 2025
📅 9w to go
5k
Road
Achilles International Canada 2025 - Hope & Possibility 5km Run Walk and Roll
Toronto, Ontario
August 23, 2025
8:30AM
Achilles International Canada Hope & Possibility® 2025
5km
August 2025
📅 9w to go
5k
Mixed Terrain
The 5K Foam Fest 2025 - Toronto, ON (Aug 24)
Uxbridge, Ontario
August 24, 2025
8:00AM
The 5K Foam Fest - Toronto, ON 2025
5km
August 2025
📅 10w to go
Kids Races
The Runway 2025 - Kids' 200m Fun Run
Breslau, Ontario
August 30, 2025
The Runway 2025
Under 5K
August 2025
📅 10w to go
Other Distances
The Runway 2025 - 5 Mile Race
Breslau, Ontario
August 30, 2025
The Runway 2025
Other Distances
August 2025
📅 10w to go
Fun Runs & Family Runs
The Runway 2025 - Future Runner (Stroller Occupant)
Breslau, Ontario
August 30, 2025
The Runway 2025
Fun Runs & Family Runs
August 2025
📅 10w to go
Other Distances
The Runway 2025 - 2 Mile Race & Fun Run/Walk
Breslau, Ontario
August 30, 2025
The Runway 2025
Other Distances
August 2025
📅 11w to go
10k
Virtual
Island Lake Classic 2025 - Virtual Run (International Participants)
Orangeville, Ontario
August 30, 2025
Anytime
Island Lake Classic 2025
5km or 10km
August 2025
📅 10w to go
Other Distances
Trail
North of 7 Challenge 2025 - 3k Fun Run - NO FINISHER SWAG
Cloyne, Ontario
August 30, 2025
9:00AM
2025 North of 7 Challenge
3km
August 2025
📅 10w to go
Kids Races
Trail
North of 7 Challenge 2025 - Kids/Youth Challenge (1K)
Cloyne, Ontario
August 30, 2025
11:00AM
2025 North of 7 Challenge
1km
August 2025
📅 10w to go
Other Distances
Trail
North of 7 Challenge 2025 - Grit Loop (3k w/sandbag)
Cloyne, Ontario
August 30, 2025
11:00AM
2025 North of 7 Challenge
3km w/sandbag
August 2025
📅 10w to go
Other Distances
Trail
North of 7 Challenge 2025 - 3k Fun Run
Cloyne, Ontario
August 30, 2025
10:00AM
2025 North of 7 Challenge
3km
August 2025
📅 11w to go
10k
Virtual
Island Lake Classic 2025 - Virtual Run (Canadian Participants)
Orangeville, Ontario
August 30, 2025
Anytime
Island Lake Classic 2025
5km or 10km
August 2025
📅 10w to go
Other Distances
Trail
North of 7 Challenge 2025 - 2 Hour Challenge
Cloyne, Ontario
August 30, 2025
12:00PM
2025 North of 7 Challenge
2 hours (as many 3km loops as possible)
August 2025
📅 11w to go
Kids Races
Road
Cornwall Multisport Club Labour Day Chase 2025 - Labour Day Kids Chase 1KM
South Glengarry, Ontario
September 1, 2025
9:00AM
Labour Day Chase 2025
1km
September 2025
📅 11w to go
5k
Road
Cornwall Multisport Club Labour Day Chase 2025 - Labour Day Chase 5KM
South Glengarry, Ontario
September 1, 2025
9:30AM
Labour Day Chase 2025
5km
September 2025
📅 11w to go
Other Distances
Road
Summer Shores 2025 - In-Person Summer Shores 8K Run
Hamilton, Ontario
September 1, 2025
9:30AM
Summer Shores 5K/8K 2025
8km
September 2025
📅 11w to go
Under 5K
Road
Summer Shores 2025 - In-Person Summer Shores 1K Run/Walk
Hamilton, Ontario
September 1, 2025
9:00AM
Summer Shores 5K/8K 2025
1km
September 2025
📅 11w to go
5k
Road
Summer Shores 2025 - In-Person Summer Shores 5K Run/Walk
Hamilton, Ontario
September 1, 2025
9:30AM
Summer Shores 5K/8K 2025
5km
September 2025
📅 11w to go
5k
Virtual
Summer Shores 2025 - Virtual Summer Shores 5K
Hamilton, Ontario
September 1, 2025
Anytime
Summer Shores 5K/8K 2025
5km
September 2025
📅 11w to go
Other Distances
Virtual
Summer Shores 2025 - Virtual Summer Shores 8K
Hamilton, Ontario
September 1, 2025
Anytime
Summer Shores 5K/8K 2025
8km
September 2025
📅 13w to go
Kids Races
Road
Trail & Ale 2025 - Kids 14 and under VIRTUAL 5K Walk or Run
Sarnia, Ontario
September 1, 2025
Anytime
Trail and Ale 2025
5km
September 2025
📅 13w to go
5k
Road
Trail & Ale 2025 - VIRTUAL Run 5K
Sarnia, Ontario
September 1, 2025
Anytime
Trail and Ale 2025
5km
September 2025
📅 12w to go
10k
Virtual
Oasis ZooRun 2025 - Virtual 10K
Toronto, Ontario
September 1, 2025
9:00AM
Oasis ZooRun Toronto 2025
10km
September 2025
📅 11w to go
5k
Trail
Island Lake Classic 2025 - 5K Run/Walk
Orangeville, Ontario
September 1, 2025
9:25AM
Island Lake Classic 2025
5km
September 2025
📅 11w to go
10k
Trail
Island Lake Classic 2025 - 10K Run
Orangeville, Ontario
September 1, 2025
9:00AM
Island Lake Classic 2025
10km
September 2025
📅 11w to go
Kids Races
Trail
Island Lake Classic 2025 - Kids Fun Run
Orangeville, Ontario
September 1, 2025
8:40AM
Island Lake Classic 2025
200m
September 2025
📅 13w to go
5k
Road
Trail & Ale 2025 - VIRTUAL Walk 5K
Sarnia, Ontario
September 1, 2025
Anytime
Trail and Ale 2025
5km
September 2025
📅 13w to go
10k
Road
Trail & Ale 2025 - VIRTUAL Run 10K
Sarnia, Ontario
September 1, 2025
Anytime
Trail and Ale 2025
10km
September 2025
📅 12w to go
Kids Races
Virtual
Oasis ZooRun 2025 - Virtual CubRun
Toronto, Ontario
September 1, 2025
9:00AM
Oasis ZooRun Toronto 2025
1km
September 2025
📅 12w to go
5k
Virtual
Oasis ZooRun 2025 - Virtual 5K
Toronto, Ontario
September 1, 2025
9:00AM
Oasis ZooRun Toronto 2025
5km
September 2025
📅 13w to go
10k
Virtual
Canada Army Run 2025 - 10K Virtual
Ottawa, Ontario
September 5, 2025
Anytime
Canada Army Run 2025
10km
September 2025
📅 13w to go
Half Marathon
Virtual
Canada Army Run 2025 - Half Marathon Virtual
Ottawa, Ontario
September 5, 2025
Anytime
Canada Army Run 2025
21.1km
September 2025
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