横浜マラソン takes place on Sun, Oct 25, 2026 in Yokohama, Japan. The main route is 42.2 km.
- Date
- Sun, Oct 25, 2026
- Start
- Yokohama 🇯🇵
- Distance
- 42.2 km
- Level
- Open to all
Starting near the Yokohama Landmark Tower, the course winds through minato mirai and historic areas before taking runners onto the capital high-speed highway section with views of the Yokohama Bay Bridge.
Official event pageWhat this race demands
This full marathon demands sustained running capacity over 42.2 kilometers across varied urban and highway terrain in Yokohama. Athletes must manage pacing carefully to handle the standard marathon distance without specific elevation data.
Aerobic Endurance
Covering the full 42.2-kilometer marathon distance requires a well-developed aerobic engine and consistent pacing over several hours.
Durability
The lengthy course demands muscular endurance and structural resilience to withstand the repetitive impact of running through the urban sections and highway bridges.
A target intake of 60 to 90 grams of carbohydrates per hour is recommended to sustain energy levels across the multi-hour marathon 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
Your road to race day
Race day at 横浜マラソン is 9 weeks away. This is how a coach divides that time. The first phase starts now.
01Build3 weeks · Aug 24, 2026 – Sep 13, 2026
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
02Peak3 weeks · Sep 14, 2026 – Oct 4, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
03Taper2 weeks · Oct 5, 2026 – Oct 18, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
04Race week1 week · Oct 19, 2026 – Oct 25, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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