Boundary Bay Marathon

The Boundary Bay Marathon takes place on November 1, 2026, in Delta, British Columbia. Five events start a few minutes apart: the marathon and the marathon relay over 42.2 km at 8:30 a.m., the half marathon at 8:33 a.m., the 10K at 8:36 a.m. and the 5K at 8:39 a.m. The out-and-back course runs mostly on flat gravel paths along the ocean. Course adjustments are possible because of shoreline improvement work in the Mud Bay area.

This flat profile and the race's status as a Boston qualifier attract runners chasing a benchmark time. Gravel is still slower than asphalt, though, so a slightly more stable shoe than a pure racing model is often the better choice. The relay format also offers a group or a club a way into the marathon distance.