The Whole Serie 2026

The Whole Serie 2026 is held on May 23 in Mission, BC and is organized by Heads Or Trails. The race is staged on Bear Mountain, a well-known trail network just outside Mission, and continues a series of seasonal trail events put on by Heads Or Trails that attract both local competitors and destination runners.

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The event offers three trail distances: an 8K (≈330m+), a 15K (≈770m+), and a 30K (≈1,540m+) — the 30K is run as two laps of the 15K course. Race-day check-in opens at 7:30 AM PDT with staggered starts: the 30K briefing and start begin first in the 8:25–8:30 AM window, the 15K starts at 9:00 AM, and the 8K at 9:30 AM. A kids’ race follows the main events, making the day family-friendly. Heads Or Trails also runs a companion mountain-bike event on the following day for runners who want to double up.

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What distinguishes this event is the punchy mountain terrain and the competitive indexing — Heads Or Trails submits race results to both ITRA and UTMB for performance index scoring, so times count toward international trail performance records. The 15K loop packs sustained climbing and technical singletrack sections; the 30K doubles that challenge for experienced trail runners seeking a true test. The event posts results and photo galleries after race day and maintains course records from recent editions, underlining its appeal to fast local athletes and ambitious visitors.

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Registration is handled through Race Roster; entry links are published by Heads Or Trails for each distance. Prospective entrants should secure a spot early, as entries for popular trail distances often fill.

• Start/finish on the Bear Mountain trail network near Mission, BC
• Trail terrain featuring technical singletrack and mountain switchbacks with sustained climbs
• 8K ≈330m+ elevation, 15K ≈770m+ elevation, 30K ≈1,540m+ (two laps of the 15K)
• 30K course is the 15K loop run twice; cut-off at Aid Station 3 (2:30 PM / 5 hours)
• Event results are submitted to ITRA and UTMB for performance indexing

• Big vertical gain: 30K option delivers about 1,540m+ of climbing by running the 15K loop twice
• ITRA/UTMB-indexed: results are submitted for ITRA and UTMB performance index scoring
• Clear cut-off point: 30K runners face a 5-hour cut-off at Aid Station 3 (2:30 PM)
• Staggered starts and a kids’ race: 30K, 15K and 8K start times are spread across the morning with a kids’ race afterward
• Paired mountain-bike day: option to ride the Bear Mountain XC race the following day for multi-discipline athletes