TO50

SEP
4
2027
Self supported 50 km and 80 km ultramarathons around Toronto waterfront with a halfway aid station and a finish-to-refund entry policy.
80 kilometers 50 kilometers

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TO50 - Self supported ultramarathon in Toronto

TO50 is a self supported ultramarathon offered over two distances along Toronto waterfront and city trails. The course begins at Harbourfront and runs along the Martin Goodman Trail, Tommy Thompson Park, the Lower Don River Trail, through the Eglinton section, and finishes on the Humber River Trail. A GPX route file is provided before race day.

The event is self supported except for a halfway aid station at about 25 km, where water and nutrition are available. Participants must follow the provided GPS route and obey all traffic laws. Other stated rules include leaving no trace, looking out for other participants, and no headphones on roads with traffic.

Entry operates on a pay-to-commit model: entrants pay an entry fee and receive a full refund if they finish within the cutoff for their distance; entrants who do not finish forfeit the fee. Cutoffs are 12 hours for the 50 km distance and 14 hours for the 80 km distance. Cash prizes are offered for women and men: 1st $200, 2nd $100, 3rd $50. Each distance is limited to 75 participants. Visit the organization's website for the most recent information.

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