Ultra Series

Races greater than 50km

The Fat Ass Trail Run

Welcome to the 13th Anniversary of the Fat Ass Trail Run! The Fat Ass as we lovingly call it started 13 years ago with 23 participants who didn't quite know what they had gotten themselves into and who fell in love with running the trails of the Batawa area. In 2013 the race had grown to over 700 participants. Everyone is welcome; fast, slow, young, old, runners and walkers.  While every race has competitive runners throughout who either race against each other, themselves or the clock; the Fat Ass is meant to be a fun race.

Conquer the Canuck

This is a true runners’ race, where the greater portion of race fees are spent on the participants. 

Run Off-The-Grid

Come be a part of Northern Ontario’s longest, toughest and most remote trail run!  Enjoy breathtaking scenery of the Laurentian Mountains in the peak of the autumn colours.

Niagara Ultra Races

The 26th running of the Niagara Ultra Races.100km,  50 km, Marathon, Half Marathon or 10k foot race (on traffic-free asphalt footpath) following the Niagara River Parkway from Niagara-on-the-Lake past Fort George and on to Niagara Falls and back.

Sri Chinmoy Ultras Ottawa

Join us for the 37th Annual 24 Hour Race—the longest running 24 Hour Race in the world! It's also the 9th Annual 12 Hour race, and 10th Annual 6 Hour race and the 3rd Annual 50k, 50m, 100k, 100mi and 200k.

Horror Trail Race

On a 2.5km loop: Well maintained and marked trail through the forrest on Camp Heidelberg property of the Optimist Club of Kitchener Waterloo.

Haliburton Forest Trail Run

2018 will mark the 26nd anniversary of the event which saw its inaugural race take place in 1993. The race has grown steadily since its inception and once again we will offer your choice of 12K, 26K, 50K, 50 mile, the 4 person relay for the 100 mile, each runner running 25 miles, and of course, our signature event, the Haliburton Forest 100 Miler.

The Limberlost Challenge

The Limberlost Challenge 2018 promises to be better than ever. Experience the very best of trail courses.  The Limberlost Forest and Wildlife Reserve is the trail runner’s dream with its challenging terrain that will take you alongside pristine lakes, through a wetland with its tier of beaver dams, up and over some steep inclines and either tiptoeing or splashing through the occasional creek or mud hole.

Sri Chinmoy Self-Transcendence 6-Hour Race

For many years now, we have been inviting runners to join us for our annual June 6-hour race in Kingston. We are proud to hold it once again upon the grounds of the Royal Military College, on the shore of Lake Ontario. This is a beautiful short loop (1.1 km) around a tiny historical fort.

The Seaton Soaker

Seaton Trail race is back again this year. We are very excited about staging this race, and it being the second race in the Ontario Ultra Series.