In 2022, Middle and Sprint distance provincial Championships were hosted by Dontgetlost Adventure Running November 19/20 at Camp Manitou in Milton, ON.
Note that there was no Long championship race held.
2020 and 2021 Ontario Championships were cancelled due to COVID-19.
The 2019 Ontario Championships were co-hosted by the Toronto and Ukrainian Orienteering Clubs on November 2-3 in in the Guelph area - the same complex terrain that was used for the World Masters' Games in 1985. Results can be found here.
The 2018 Ontario Championships, hosted by Ottawa Orienteering Club, were in the Gatineau hills. Final results can be found here.. The