The Bar-Ka-Koo Ultra & Relay 2025 takes place on November 22, 2025, offering a challenging 55 km trail run comprised of five 11 km loops around Chickakoo Lake Recreation Area. The course features 75% technical single-track and 25% Nordic ski trails, with a 10-hour cutoff and a mandatory completion of the fourth loop by 8:00 pm.

Runners are required to be self-supported due to minimal course marking. All finishers receive a medal and event-branded swag. Proceeds support Little Warriors, a Canadian charity focused on child sexual abuse awareness and prevention.

- 55 km total distance consisting of five 11 km loops.
- Terrain: approximately 75% technical single-track, 25% Nordic ski trails.
- 10-hour overall cutoff.
- Fourth loop must be completed by 8:00 pm.
- Participants must be self-supported with minimal course marking.
- All finishers receive a medal and event swag.
- A portion of net proceeds supports Little Warriors charity.

- Prepare for technical terrain and variable weather conditions.
- Outhouses available onsite.
- No dogs allowed on the course.
- Park remains open to the public during the event.
- Participant warming tent with soup, tea, coffee, and water at start/finish area.