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