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
04/19/25	The Foxtail Rail Trail Race	Dundas	50 KM
04/26/25	Pick Your Poison Trail Run	Barrie	50 KM
05/03/25	Suntrail Pure Grit Trail	Hepworth	6 Hours
05/10/25	Conquer the Canuck Marathon Ultra Trail Weekend	Cambridge	12 Hours , 50 KM
05/17/25	Coach D's Backyard Ultra	Lindsay	6 Hours , 12 Hours , 24 Hours
05/24/25	Sulphur Springs Trail Race	Ancaster	50 KM , 50 Miles , 100 KM , 100 Miles
06/01/25	Boomerang Trail Run	Batawa	6 Hours
06/14/25	High Noon 24Hr Trail Race & Relay	Thunder Bay	24 Hours
06/14/25	Rainbow Trail Run	Alliston	48 KM , 60 KM
06/21/25	Sunburn Solstice Run	Mount Hope	15 Hours
06/21/25	Niagara Ultra	Niagara On The Lake	50 KM
07/05/25	Limberlost Challenge	Lake of Bays	56 KM
07/26/25	Tally in the Valley	Dundas	6 Hours , 12 Hours , 12 Hours , 24 Hours , 100 Miles
08/02/25	Persistence Backyard Ultra	Arva	Backyard
08/09/25	Middle Path Ultra and Trail Race	Peterborough	52 KM
09/05/25	Haliburton Forest Trail Race	West Guildford	50 KM , 50 Miles , 100 Miles
10/04/25	UpRiver Running Fall Races	Thunder Bay	50 KM
10/11/25	Sticks n' Stones Trail Race	Dundas	50 KM
10/18/25	Phoenix Trail Races	London	50 KM
10/18/25	Creemore Vertical Challenge	Creemore	55 KM , 50 Miles
11/01/25	The Beav Trail Race	Milton	50 KM

Past Events

Date	Event	City	Distances
11/03/24	Moonshine Backyard Ultra	Arnstein	Backyard
10/26/24	The Bad Thing	Goderich	50 KM
09/28/24	Run Off-The-Grid	Mattawa	50 KM
09/21/24	Monster of Mazinaw	Cloyne	43 KM , 60 KM
09/21/24	That Dam Hill	London	3 Hours , 6 Hours , 12 Hours , 24 Hours , 50 KM , 50 Miles
08/24/24	Stone Cairn Trail Race	Niagara on the Lake	50 KM , 50 Miles
06/22/24	Mad Trapper Backyard Ultra	Ottawa	Backyard
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
09/24/22	Ultra Trail Stokely Creek	Goulais River	56 KM , 85 KM , 100 Miles
09/17/22	Chase the Coyote Trail Race	Mono	50 KM
11/14/21	Fat Ass Trail Run	Batawa	6 Hours , 50 KM
05/21/21	Coolsaet GO 50k	Hamilton	50 KM
09/19/20	Kingston Self-Transcendence	Kingston	6 Hours
05/09/20	Seatons	Pickering	50 KM , 33.1 Miles , 50 Miles
01/04/20	Stride Inside Indoor Track Race	Guelph	1 Hours , 3 Hours , 6 Hours
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
07/23/16	Dirty Girls' Trail Race	Mansfield	6 Hours , 12 Hours , 24 Hours , 48 Hours
08/03/15	Tourne en Rond	Quebec	6 Hours , 12 Hours
07/04/15	Laura Secord Memorial 100k/50k/25k	Niagara Falls	25 KM , 50 KM , 100 KM
09/28/13	Self Transcendence	Ottawa	24 Hours
12/01/12	Creemore Horizontal	Creemore	100 Miles
09/29/12	Self-Transcendence 6 Hr, 12 Hr & 24 Hr Race	Ottawa	6 Hours , 12 Hours , 24 Hours
04/23/11	Jerseyville Fat Ass	Jerseyville	100 Miles
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
10/08/88	Rainbow Country 48-hour Run	Chelmsford	48 Hours
09/25/88	Golden Horseshoe Fifty Miler	Hamiton	50 Miles
09/04/88	Patenauge's Choise	St. Jacobs	50 KM , 50 Miles , 100 KM
08/27/88	Burlington Runners	Burlington	12 Hours , 24 Hours , 50 Miles
06/21/88	Ontario Northland 161 Km Challenge	Chelmsford	100 Miles
05/14/88	Hockley Hills 50 Mile Trail Run	Orangeville	50 Miles
04/30/88	Sagamok 60 Km Race	Massey	60 KM
03/05/88	La Cloche Classic 50 Km	Espanola	50 KM
01/30/88	Valley 24-hour Indoor Run	Hanmer	24 Hours