20 Upcoming Races Near Ajax, ON - Matching: Trail Races

The First Blaze Trail Race 2026

Milton, ON

Saturday, July 11th, 2026

10K

Trail

Fast

View details for race The First Blaze Trail Race 2026

TCS Toronto Waterfront Marathon - Long Run #1

Toronto, ON

Saturday, July 18th, 2026

Trail

View details for race TCS Toronto Waterfront Marathon - Long Run #1

2026 5 Peaks Trail Running Series: Area 8

Milton, ON

Saturday, July 18th, 2026

Trail

View details for race 2026 5 Peaks Trail Running Series: Area 8

2026 Toronto Carnival Run

Toronto, ON

Saturday, July 25th, 2026

5K

10K

Trail

View details for race 2026 Toronto Carnival Run

Organize a race? Add it free — over 100,000 runners use Find The Run every month.

Add it free Feature it

5k Race for Plates (StockTheSummer.ca)

Whitby, ON

Saturday, August 1st, 2026

5K

Trail

Fast

View details for race 5k Race for Plates (StockTheSummer.ca)

Middle Path Trail Race

Peterborough County, ON

Saturday, August 15th, 2026

Ultra

Trail

View details for race Middle Path Trail Race

2026 5 Peaks Trail Running Series: Albion Hills

Caledon, ON

Saturday, September 5th, 2026

Trail

View details for race 2026 5 Peaks Trail Running Series: Albion Hills

Monarch Ultra 10km

Peterborough, ON

Saturday, September 19th, 2026

10K

Trail

View details for race Monarch Ultra 10km

The Cider Run

Uxbridge, ON

Saturday, September 19th, 2026

Trail

View details for race The Cider Run

PUMA Toronto Women's Fall 8K/5K

Toronto, ON

Saturday, October 3rd, 2026

Trail

View details for race PUMA Toronto Women's Fall 8K/5K

2026 5 Peaks Trail Running Series: Heart Lake

Brampton, ON

Saturday, October 3rd, 2026

Trail

View details for race 2026 5 Peaks Trail Running Series: Heart Lake

West Rouge Sports & Recreation Association ...

Toronto, ON

Saturday, October 3rd, 2026

5K

10K

Trail

View details for race West Rouge Sports & Recreation Association Fun Run - 2026

Fenelon Falls Turkey Trot Trial Race & Fami...

Kawartha Lakes, ON

Saturday, October 10th, 2026

5K

10K

Trail

View details for race Fenelon Falls Turkey Trot Trial Race & Family Fun Run

5k/10k Run/Walk for Justice....Honouring Flight...

Newmarket, ON

Saturday, October 10th, 2026

5K

10K

Trail

View details for race 5k/10k Run/Walk for Justice....Honouring Flight PS752 Victims

Long Sault Trail Race & Ultra

Bowmanville, ON

Saturday, October 17th, 2026

Trail

View details for race Long Sault Trail Race & Ultra

2026 TCS Toronto Waterfront Marathon

Toronto, ON

Saturday, October 17th, 2026

Trail

View details for race 2026 TCS Toronto Waterfront Marathon

Horseshoe Valley Hustle Trail & Ultra Chall...

Barrie, ON

Saturday, October 31st, 2026

Trail

View details for race Horseshoe Valley Hustle Trail & Ultra Challenge

Oakville Remembrance Trail Run

Oakville, ON

Saturday, November 7th, 2026

Trail

View details for race Oakville Remembrance Trail Run

The Beav Trail Race 2026

Milton, ON

Saturday, November 7th, 2026

Trail

View details for race The Beav Trail Race 2026

XACT Kawartha Sun Run 2027

Kawartha Lakes, ON

Sunday, June 13th, 2027

Half

Trail

Fast

View details for race XACT Kawartha Sun Run 2027

Explore more in Ajax, ON

Jump straight to races by distance, month, or type.

Distance

5K 10K Half Marathon Marathon

Month

July August September

Race type

Trail Boston Qualifiers Fast Courses

Nearby

Whitby Markham Toronto Mississauga Kawartha Lakes Oakville All Ontario races