Your plan in four answers
Set for March 7, 2027, about 19 weeks out.
- Distances
- Marathon
- Terrain
- Flat
- Taper starts
- February 17, 2027
Course
The Tokyo Marathon course
The Major with the most demanding entry lottery relative to its field size, run from the Shinjuku government buildings through Asakusa and Ginza to a finish near Tokyo Station. Flat and fast, with a net drop in the early miles and several out-and-back sections that let you see the leaders.
Read the full course notes
Organisation and crowd discipline are exceptional even by Major standards.
- Terrain
- Flat
- Distances
- Marathon
- Weather on race day
- Early March in Tokyo is cold: starts in the 40s, highs in the 50s, and wind through the city canyons is common. It is good racing weather but a cold wait in the start corral.
What to train for
Flat-course goal-pace fitness, plus travel logistics.
The course asks nothing unusual, so the real variables are the long flight, the time change, and adapting to unfamiliar food in the days before.
Arrive early enough that race morning is not your third day awake at odd hours.
Sample week
A sample Tokyo Marathon training week
A week from the middle of the build, about six weeks out. Your plan sets the real distances and paces from your own fitness and adjusts them every week as you train.
- Monday
- Rest, or 20 minutes of mobility
- Tuesday Key session
- Intervals: 5 × 1.5 km at 5K to 10K effort, easy jog between
- Wednesday
- Easy run, 10–11 km
- Thursday Key session
- Goal-pace run, 16 km with 10 km at race pace
- Friday
- Recovery run, 6 km, or cross-train
- Saturday Key session
- Long run, 26–29 km, the last 6 km at race pace
- Sunday
- Easy run, 6 km, then 6 relaxed strides
Your build to race day
Taper
Tapering for the Tokyo Marathon
Start the taper two to three weeks before race day. Cut your weekly volume by about a third, then by half in race week, and keep a few short efforts at race pace so your legs stay sharp. The course is flat, so pacing decides the day: rehearse your goal pace in short segments during race week. With the race on March 7, 2027, your taper starts around February 17, 2027.
Also in Claude
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Build me a training plan for the Tokyo Marathon on March 7, 2027. I run [distance] a week, [days] days a week, easy pace [pace].
Tokyo Marathon training questions
How long should I train for the Tokyo Marathon?
Most runners give a marathon sixteen to twenty weeks of focused training on top of an existing base. The plan above counts back from your actual race date, so if you have less time than that it builds the best plan the remaining weeks allow rather than pretending you have longer.
Is the Tokyo Marathon course hilly?
Flat. The Major with the most demanding entry lottery relative to its field size, run from the Shinjuku government buildings through Asakusa and Ginza to a finish near Tokyo Station.
What is the weather usually like at the Tokyo Marathon?
Early March in Tokyo is cold: starts in the 40s, highs in the 50s, and wind through the city canyons is common. It is good racing weather but a cold wait in the start corral.
When should I start tapering for the Tokyo Marathon?
Start the taper two to three weeks before race day. Cut your weekly volume by about a third, then by half in race week, and keep a few short efforts at race pace so your legs stay sharp. The course is flat, so pacing decides the day: rehearse your goal pace in short segments during race week. With the race on March 7, 2027, your taper starts around February 17, 2027.
Do I need an account to get a Tokyo Marathon training plan?
No. The plan above builds in your browser with no account, no email, and no card. Make a free account only if you want to keep it, log your runs against it, and have the coach keep adapting it as your training goes.