北海道マラソン takes place on Sun, Aug 30, 2026 in 札幌市, Japan. The main route is 42.2 km.
- Date
- Sun, Aug 30, 2026
- Start
- 札幌市 🇯🇵
- Distance
- 42.2 km
- Level
- Open to all
北海道マラソンは、日本国内で唯一、夏に行われる大規模なフルマラソン大会です。
Official event pageWhat this race demands
This standard 42.2-kilometer marathon requires sustained pacing and high heat tolerance due to its late-summer timing.
Aerobic Endurance
Covering the full 42.2 kilometers demands a deep aerobic base and efficient pacing to maintain forward motion over the latter stages of the race.
Heat Adaptation
Staging a full marathon in August subjects the athlete to significant thermal stress, requiring disciplined hydration and core temperature management.
Aim for 60 to 90 grams of carbohydrates per hour to sustain energy output across the three-to-five-hour duration.
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
3:45–4:30
Peak-week training
5–7 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
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