ちばアクアラインマラソン takes place on Sun, Nov 8, 2026 in 木更津市, Japan. The main route is 42.2 km.
- Date
- Sun, Nov 8, 2026
- Start
- 木更津市 🇯🇵
- Distance
- 42.2 km
- Level
- Open to all
Your 5-week plan to ちばアクアラインマラソン
The Peak phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
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A popular full and half marathon race where runners race across the bridge section of the Tokyo Bay Aqua-Line and a diverse course within Chiba Prefecture, while overlooking the blue sea.
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.
Aerobic endurance
The standard marathon distance of 42.2 kilometers requires deep aerobic conditioning to maintain pace over several hours of continuous running.
Muscular durability
Running the full marathon distance places sustained eccentric loading on the lower limbs, requiring resilient leg musculature to resist late-race fatigue.
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.
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 ちばアクアラインマラソン is 5 weeks away. This is how a coach divides that time. The first phase starts now.
01Peak2 weeks · Oct 5, 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.
02Taper2 weeks · Oct 19, 2026 – Nov 1, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
03Race week1 week · Nov 2, 2026 – Nov 8, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is ちばアクアラインマラソン?
ちばアクアラインマラソン takes place on Sun, Nov 8, 2026 in 木更津市, Japan.
How long is ちばアクアラインマラソン?
The main route is 42.2 km.
What does ちばアクアラインマラソン demand?
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.
Who is ちばアクアラインマラソン for?
ちばアクアラインマラソン is open to all participants.
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