ちばアクアラインマラソン

What this race demands

This full marathon challenges athletes to sustain forward progress over 42.2 kilometers along coastal and bridge sections in Chiba, Japan. The November race date places the event in late autumn conditions.

A marathon duration exceeding two and a half hours requires consistent exogenous carbohydrate intake of 60 to 90 grams per hour to maintain glycogen availability.

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.

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 ちばアクアラインマラソン is 11 weeks away. This is how a coach divides that time. The first phase starts now.

1. 01Build5 weeks · Aug 24, 2026 – Sep 27, 2026

   Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.

2. 02Peak3 weeks · Sep 28, 2026 – Oct 18, 2026

   The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.

3. 03Taper2 weeks · Oct 19, 2026 – Nov 1, 2026

   Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.

4. 04Race week1 week · Nov 2, 2026 – Nov 8, 2026

   Openers, rest and logistics. The work is done; the job now is arriving fresh.

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