The Leftovers Mystery Race 2025: Running With Scissors Edition

This page is kept as a past race archive for the Dec 6, 2025 edition in Bayfront Park, Hamilton, Ontario. Use the links below to find upcoming races in the same area or distance category. You can also browse the 2025 race calendar.

The Leftovers Mystery Race 2025, 'Running With Scissors Edition,' takes place on December 6, 2025, at Bayfront Park in Hamilton, Ontario. This unique event features a new twist: participants are provided with blunt-tip scissors and must complete cutting tasks at checkpoints throughout the course. The event maintains its tradition of surprise distances and a fun, community-focused atmosphere, with race kits and medals composed of leftover items from previous Happy Trails Racing events. Registration is free, but participants are asked to bring a $20 bill to donate to one of several local charities.

• Course is on paved pedestrian trails at Bayfront Park, Hamilton
• Participants discover their exact race route and distance upon arrival
• Secret routes and mystery distances preserved
• Cutting tasks at checkpoints are a new feature for 2025
• Minimal extras to keep the event casual and fun

• New 'Running With Scissors' challenge: participants cut out images at checkpoints using provided scissors
• Race distances and routes remain a mystery until race day
• Race kits and medals made from leftover items from past events
• Costumes and fun running outfits encouraged with creative awards
• Emphasis on a lighthearted, community-focused event
• Limited aid stations, no chip timing
• 'Tradesies' encouraged for exchanging race swag
• Registration is free; $20 cash donation to selected charities requested