Black Diamond Express Half Marathon & 5K

Race facts

• The course covers 21.1 km.
• It takes place on a Sunday, August 23, 2026 — summer in this part of the world.
• The closest comparable trail running event is West Almond Trails Impact Run/Walk in Belmont, 96 km away, on August 29, 2026.
• 11 of the 12 most similar events take place in the same month.