How to Train for the Tokyo Marathon
Asier G. Morato
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7
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Cover image generated with AI — © Chubby Studio S.L.
KEY TAKEAWAY
The 2027 Tokyo Marathon is on Sunday, March 7. The course drops about 40 meters in the first six kilometers and is close to flat after that, so control the downhill start. Cut-offs run on clock time, which leaves back-corral runners 6.5 hours, and a large eastward time shift takes most of a week to adapt to, so arrive early.
To train for the Tokyo Marathon, train for a controlled start and plan your trip as carefully as your long runs. The 2027 race is on Sunday, March 7. The course falls about 40 meters in the first six kilometers and is close to flat after that, so the early downhill is where pacing goes wrong. For most runners flying in, the other big variable is jet lag.
That combination makes Tokyo different from a home marathon. You can build a perfect training block and still arrive with a body clock eight or more hours out of step. This guide covers the verified 2027 logistics, what the course and its cut-offs ask of you, how your remaining weeks should be built, and how early you need to land.
When is the 2027 Tokyo Marathon, and what are the key rules?
Checked on October 13, 2026, against the Tokyo Marathon Foundation's race information and entry pages. The race is on Sunday, March 7, 2027, with the marathon starting at 9:10 a.m. at the Tokyo Metropolitan Government Building in Shinjuku and finishing at Tokyo Station on Gyoko-dori Avenue. The field is 40,000 runners, and the course is certified by JAAF, AIMS and World Athletics.
The overall time limit is 7 hours, with the finish closing at 4:10 p.m. General entrants must be 19 or older on race day and able to finish within 6 hours 30 minutes. Anyone declaring a finish of 3:00:00 or faster had to submit a qualifying marathon under 3:00:00 or a half under 1:25:00, run between July 1, 2024 and June 30, 2026.
Entry for 2027 is effectively settled: the general application window closed on August 28, 2026, the lottery results came out in September, and charity places filled within days of opening in June. Bibs are collected only in person, with photo ID, at Tokyo Big Sight on March 4, 5 and 6, 2027. There is no pick-up on race day and no pick-up by proxy, which matters for your travel plan below.
Why do the cut-offs matter more than the 7-hour limit suggests?
Because the organizers publish nine provisional cut-off points, and they run on clock time, not on the moment you crossed the start line. The first is at 4.9 kilometers at 10:25 a.m., halfway sits at 20.9 kilometers at 12:45 p.m., and the finish closes at 4:10 p.m. Runners at the front have the full 7 hours. Runners at the back do not.
The course page lists the last runners crossing the start at about 9:40 a.m. Counted from there, a runner in the last corral has 6 hours 30 minutes to finish, not 7, which is exactly the ability the entry rules ask for. That works out to roughly 9:15 per kilometer overall and about 8:50 per kilometer to clear the halfway point. The first cut-off is the tightest: 45 minutes for 4.9 crowded kilometers if you start last.
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If your goal is simply to finish, practice running continuously at your planned pace for the first hour, including the congestion of a big start. Walk breaks are a fine strategy later in the race, but they need to be built into a pace that still clears each point on the clock.
What does the Tokyo course actually ask of your legs?
A controlled descent, then patience on a flat road. The official elevation profile starts at about 40 meters in Shinjuku and drops to near sea level by around kilometer six. After that the course stays low, with only small rises at bridges and underpasses. There are turnarounds at about 10.6, 23.95 and 37.5 kilometers, where you slow, turn and rebuild pace.
The downhill start is the trap. Gravity and a crowd of 40,000 make a pace that is too fast feel easy, and a fast first six kilometers in Tokyo costs you energy you will want after kilometer 30. The pacing logic is the same as on any flat course: hold back early, then hold steady. Our guide to pacing a flat, fast marathon covers even splits in detail.
How many weeks do you have, and how should they be built?
From mid-October you have about 21 weeks. A 16-week marathon block would start on Monday, November 16, 2026, which leaves the next month for steady, mostly easy base running. A taper of two to three weeks would begin around February 15 or 22, 2027.
Use the base weeks to make easy running genuinely easy, because most of your runs should feel easy if the hard ones are going to count. Then, through the build, add goal pace into the second half of your long runs. Goal pace on tired legs is the rehearsal that matters most, because that is the only version of it you will meet after kilometer 30.
Tokyo also rewards one specific rehearsal: start a few long runs on a gentle downhill and practice running it at goal pace or slower, without letting gravity choose the speed. Watch your training load against your own baseline as the weeks build, so the climb in volume stays gradual and drops clearly once the taper starts.
How early should you arrive in Tokyo to get over jet lag?
Earlier than most race-week plans allow. In early March, Tokyo is 8 hours ahead of Spain and most of Central Europe and 9 hours ahead of the UK. A review of jet lag interventions by Roach and Sargent estimates that after a 6-hour eastward shift the body clock is partly adapted by day 3 and fully by day 6, and after a 9-hour eastward shift by days 5 and 8.
The direction matters because the body clock runs slightly longer than 24 hours and delays more easily than it advances, so an eastward shift takes longer to adapt to than a westward one of the same size. Flying from North America you travel west, and for a 9-hour westward shift the same review puts partial adaptation at day 3 and full adaptation at day 7. Either way, a large shift takes most of a week.
So if you can, land about a week before the race. Arriving on Saturday afternoon to collect your bib before the 5:30 p.m. close leaves your body clock in the wrong country on race morning. Before an eastward flight, the review suggests moving bedtime and wake time 30 to 60 minutes earlier each day. On arrival, get daylight in the afternoon and avoid bright light early in the morning for the first few days. If you are considering melatonin, ask your doctor about the timing. Weekend lie-ins are the same body clock problem on a smaller scale, and the fix there is the same: move the clock, do not just sleep longer.
What should your data look like in Tokyo race week?
Unsettled for a few days, and that is expected. A long-haul flight, a new time zone and short nights all move your recovery metrics, so a resting heart rate above your range in the first days after landing is more likely the trip than lost fitness. What you want to see is the trend: resting heart rate and HRV drifting back toward your own baseline as the week goes on.
Do not test your fitness with a hard session to reassure yourself. Keep the runs after landing short and easy, sleep on the local schedule, and let the taper do its job. Nothing you add in Tokyo will make you fitter by Sunday.
FitWoody is an iOS app for iPhone, iPad and Apple Watch that turns your watch data into a clear read on how your body is doing. For a marathon block, the useful parts today are cardiac load, which scores each run by what it cost you internally, training load tracked against your own baseline, custom heart rate zones, and recovery baselines built from HRV, resting heart rate and sleep. Those baselines are what show whether your body has caught up with Tokyo time. Flyover replays a run along its route with your heart rate and pace. An Apple Watch is required, and it informs rather than diagnoses.
Tokyo asks for two kinds of patience: on the downhill out of Shinjuku, and in the days before you ever reach the start line.
Frequently asked questions
When is the 2027 Tokyo Marathon?
The 2027 Tokyo Marathon is on Sunday, March 7, 2027. The marathon starts at 9:10 a.m. at the Tokyo Metropolitan Government Building and finishes at Tokyo Station. Bibs are collected in person with photo ID at Tokyo Big Sight on March 4 to 6, and there is no pick-up on race day.
What is the cut-off time for the Tokyo Marathon?
The overall limit is 7 hours, with the finish closing at 4:10 p.m. There are also nine provisional cut-off points that run on clock time, starting at 4.9 kilometers at 10:25 a.m. and reaching halfway at 12:45 p.m. Runners starting in the last corrals effectively have about 6 hours 30 minutes.
How many days before the Tokyo Marathon should I arrive?
About a week if you can. A review of jet lag interventions estimates that the body clock needs around 6 to 8 days to fully adapt to an eastward shift of 6 to 9 hours, which is what most European runners face. You must also collect your bib in person by Saturday at 5:30 p.m.