The Frontenac Challenge is an annual hiking challenge (not a race) to complete all 11 of Frontenac Provincial Park's trail loops specifically between September 1st and October 31st. By completing the challenge, hikers get to explore much of Frontenac Provincial Park's 5,355 hectares on the southern edge of the Canadian Shield in Ontario during a great time to see fall colours. Besides the time window (September and October), completing the Frontenac Challenge involves a few rules. For example, parts of a trail loop that are shared with a neighbouring loop must be hiked twice. More information can be found here: https://www.frontenacpark.ca/the-frontenac-challenge
Since it was founded in 1993, most people have completed the Frontenac Challenge by doing several seperate hikes. As of September 2019, while some people completed the challenge quickly (over three days as done by Morris Buckner & his friend Jordan in 2007 and again by Sara Montgomery in 2016), no one is on record for having completed it as a thru-hike.
Note that for FKT purposes the route can be run at any time, but if you want a badge from the park's "Friends" group you need to go in Sept - Oct.
Bob Durie and I will attempt an unsupported male team FKT of the Frontenac Challenge on Monday, October 28, 2019. The route we've drawn is about 102km to complete all 11 loops according to FKT and the Frontenac Challenge's rules. To track our time, I'll use my iPhone 7 and Bob will use a Garmin Forerunner watch. We'll take photos and some video as well.