Events
Race Directors

50 KM Ultra Running Events in Ontario

All 50 KM 50 Miles 100 KM 100 Miles 6 Hours 12 Hours 24 Hours

Upcoming Events

Date Event City Distances
09/12/26 Haliburton Forest Trail Race West Guildford 50 KM , 50 Miles , 100 Miles
09/25/26 Blue Bully Ultra Blue Mountain Resort 50 KM
09/26/26 Run Off-The-Grid Mattawa 50 KM
10/03/26 UpRiver Running Fall Races Thunder Bay 50 KM
10/10/26 Sticks n' Stones Trail Race Dundas 50 KM
10/17/26 Phoenix Trail Races London 50 KM
11/07/26 The Beav Trail Race Milton 50 KM
04/10/27 Caledon Crusher Mono 50 KM , 72 KM
05/22/27 Sulphur Springs Trail Race Ancaster 50 KM , 50 Miles , 100 KM , 100 Miles

Past Events

Date Event City Distances
07/11/26 Summit 700 Trail Runs Blue Mountain 50 KM
07/11/26 First Blaze Trail Race Milton 50 KM
06/20/26 Niagara Ultra Niagara On The Lake 50 KM , 50 Miles , 100 KM
05/30/26 Great Mansfield Outdoors Mansfield 50 KM , 100 KM
05/09/26 Conquer the Canuck Marathon Ultra Trail Weekend Cambridge 12 Hours , 50 KM
05/02/26 Rugged Raccoon Trail Races St Marys 50 KM
04/25/26 Pick Your Poison Trail Run Barrie 50 KM
04/18/26 The Foxtail Rail Trail Race Dundas 50 KM , 50 Miles , 100 KM , 100 Miles
11/16/25 Fat Ass Trail Run Batawa 6 Hours , 50 KM
10/25/25 The Bad Thing Goderich 50 KM
08/24/24 Stone Cairn Trail Race Niagara on the Lake 50 KM , 50 Miles
06/03/23 Fiddle50 Shelburne 50 KM , 50 Miles , 100 KM , 160 KM
10/30/22 Horror Trail Race Waterloo 4 Hours , 6 Hours , 50 KM
09/17/22 Chase the Coyote Trail Race Mono 50 KM
05/21/21 Coolsaet GO 50k Hamilton 50 KM
05/09/20 Seatons Pickering 50 KM , 33.1 Miles , 50 Miles
10/05/19 Run for the Toad Paris 50 KM
10/14/17 Vulture Bait Trail Races London 50 KM
07/15/17 The North Face Endurance Challenge Ontario Blue Mountains 50 KM , 50 Miles
01/07/17 Run4RKids Indoor Track Race toronto 6 Hours , 8 Hours , 50 KM
07/04/15 Laura Secord Memorial 100k/50k/25k Niagara Falls 25 KM , 50 KM , 100 KM
05/10/08 Ganaraska Trail Run Orillia 50 KM , 80 KM
05/03/08 Toronto Ultra Toronto 50 KM , 100 KM
10/22/05 The Crystal St. Marie 50 KM
07/16/05 Damn Tuff Ruff Bluff Run Toronto 50 KM
01/01/03 Sri Chinmoy New Year's 50K Ottawa 50 KM
10/06/01 Slough Of Despond Kingston 50 KM
04/15/00 Ascension Hamilton 6 Hours , 50 KM
10/30/88 Georgian Bay 50-Mile Fun Run Owwen Sound 50 KM , 50 Miles
09/04/88 Patenauge's Choise St. Jacobs 50 KM , 50 Miles , 100 KM
03/05/88 La Cloche Classic 50 Km Espanola 50 KM

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

Silverheels Trail Runs
Fairplay, CO - 52 finishers
60 KM
Devil's Gulch
Wenatchee, WA - 82 finishers
100 Miles | 50 Miles
Thumbs Up Summer Slam
Estes Park, CO - 0 finishers
12 Hours
Dances with Dirt - Devil's Lake
Baraboo, WI - 166 finishers
50 Miles | 50 KM
Carolina Reaper Challenge
Greenville, SC - 80 finishers
50 KM
Eastern Legend
Gilmer, TX - 5 finishers
50 KM
First Blaze Trail Race
Milton, ON - 70 finishers
50 KM
Spaulding Woods 50K
Northfield, NH - 52 finishers
50 KM
Kaslo Wild Ultra
Kaslo, BC - 52 finishers
52 KM
Get Your Butt Kicked @ Route 66
Eureka, MO - 37 finishers
6 Hours
View All Results