The SudburyROCKS!!! Marathon is Northern Ontario’s largest competitive running event, celebrating its 20th anniversary in 2025. It offers a variety of races including a full marathon, half marathon, 10K, 5K, and a 1K kids' race, welcoming runners and walkers of all abilities in a festive community atmosphere.

Proceeds support the Health Sciences North Foundation, benefiting local cancer care initiatives. Participants enjoy a scenic, fast course with flat to rolling terrain and a certified Boston qualifier marathon loop set in vibrant Sudbury.

\* Marathon course is a dual loop through downtown Sudbury, New Sudbury, and Minnow Lake \* Terrain: flat to rolling with a few small hills, considered fast \* Road surface for all events \* Certified Boston qualifier course (ON-2014-019-BDC) \* Aid stations available along the course

- Annual 20th anniversary in 2025
- Multiple race distances: Marathon, Half Marathon, 10K, 5K, Family Run/Walk, and Kids' race
- Certified Boston qualifier marathon course
- Supports Health Sciences North Foundation's cancer care initiatives
- Over 1,600 participants and 300+ volunteers annually
- Commemorative medals for finishers
- Family friendly event with stroller-friendly races (with safety guidelines)