TO50 : 50 km self-supported run in Toronto
TO50 is a self-supported 50 km ultramarathon through Toronto held on September 5, 2026. Entry requires a $50 deposit that is fully refunded to anyone who completes the 50 km within 12 hours. The first edition is limited to 50 participants and finishers receive a piece of memorabilia.
The route starts near Lake Ontario and follows city trails and streets, including the Martin Goodman Trail, the Lower Don River Trail, a roughly 10 km section on Eglinton, and the Humber River Trail. A halfway aid station at about 25 km provides water and gels. Organizers send a GPX file before the event for navigation.
The format is self-supported except for the mid-race aid station. There is no official permitting body or formal timing; the event operates without sponsors. Rules require following the GPS route, obeying traffic laws, leaving no trace, and looking out for other participants. Medical crews on bikes patrol the course. A cash-prize podium awards the top three finishers. Visit the organization's website for the most recent information.
The Deal
Pay To Commit. Finish And It's Free.
This isn't a race fee. It's a commitment deposit. Finish the 50km within 12 hours and you get every dollar back. Don't finish? That's the cost of quitting.
- Entry Deposit: $50
- Finish Within 12hrs → Full Refund
- Don't Finish → You Pay
- Every Finisher Gets → One Piece of Memorabilia
Get Paid To Run
Cash Money. Top 3 Get Paid.
- 1st Place: $300 Cash Money
- 2nd Place: $200 Cash
- 3rd Place: $100 Cash
The Route
50km Through Your City.
We start on the water. If you're lucky, you'll catch the sunrise. The Martin Goodman Trail — flat, fast, the lake on your right. Enjoy it. It won't last.
The Lower Don River Trail is where it gets quiet. Green canopy, birds singing, the river beside you. You're cruising and you feel good. Don't get comfortable. The tax to leave the valley is the Serena Gundy hill — it'll wake your legs up, and you're not even halfway.
Then comes the Eglinton grind. 10 kilometres of pure Toronto streets. Friends laughing on patios. Families heading to brunch. They have no idea what you're going through. Keep your head down and keep moving.
After that, the Humber River Trail. You'll love it and hate it. It's green, the water flows effortlessly beside you — but by now, the pain is real. Your legs know. Your body knows.
You're almost there. Keep going.
The Rules
This Isn't A Race With Aid Stations Every 5km.
You carry what you need. You follow the route. You finish within 12 hours. Or you don't.
- Self-supported except at the halfway aid station. Carry what you need or use what the city offers.
- Follow the GPS route. We'll send the file before race day.
- Obey all traffic laws. Use crosswalks. Wait for lights. We're guests on these streets.
- 12-hour cutoff. Start at 6 AM. If you're not done by 6 PM, your race is over.
- Leave no trace. Don't litter. Don't trash the city.
- Look out for each other. If someone's in trouble, stop. The race can wait.
- No headphones on roads with traffic. Stay alert. Stay alive.
- Have fun. Suffer well. Finish strong. Tell the story.
Never Run An Ultra? Good.
Your first ultra doesn't need to be perfect. It just needs to happen. You have 12 hours. You can walk the whole thing. This is your chance.
Built By Runners In Toronto
- Limited To 50 Participants
- First Edition: September 5, 2026
Questions You're Gonna Ask
- What's the commitment deposit? You pay $50 to register. Finish the 50km within 12 hours and you get the full amount back. Don't finish? The deposit funds next year's race. It's not a fee — it's skin in the game.
- Is this legit? It's grassroots. No permits, no governing body, no official timing. Just a planned route, a start time, and a community of people doing something hard together. You participate at your own risk.
- Can I walk it? Yes. Walk, jog, run, crawl. You have 12 hours. That's about 14:30/km. Most people can walk that pace. You don't need to be fast. You just need to keep moving.
- What support do I get? Water and gels at the halfway point (~25km). That's it. Plan your nutrition, know where public water fountains are, and carry what you need. This is self-supported by design.
- Is there medic
