The Ontario Ultra and Trail races (OUTRace) is comprised of the Ontario Trail Series (OTS) and the Ontario Ultra Series (OUS), which evolved to provide Ontario runners with a venue for competing in a series of races. The trail series races are less than the marathon distance (typically 25K) and the ultra series races are longer than a marathon (50K up to 100 miles). Runners who compete in an OTS or OUS race are automatically entered into the series.

Next Race: Sri Chinmoy Ultras Ottawa - July 29

Join us for the 36th Annual 24 Hour Race—the longest running 24 Hour Race in the world! It's also the 8th annual 12 hour race and 9th annual 6 hour race.