Tokyo Marathon
Tokyo, Japan · Sunday 28 February 2027
The Tokyo Marathon is a major annual marathon held on a certified urban road course, extending 42.195 kilometers through the heart of Japan's capital. The course starts at the Tokyo Metropolitan Government Building in Shinjuku and finishes at the Japan National Stadium, traversing a variety of distinct districts and passing numerous city landmarks. The route includes sections through Suidobashi, where the Tokyo Dome is located, and proceeds via Sudacho, initiating an out-and-back section near Ue
Difficulty Calculator
h
:m
:s
Adjusted Time
4:47:22
Time difference: +47.4 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain609m
Elevation High68m
Elevation Low4m
Weather Forecast
High16°C
Low4°C
Chance of Rain0%
Tokyo Marathon 2027 Course Analysis
Tokyo Marathon is a full marathon held in Tokyo, Japan, scheduled for Sunday 28 February 2027. The course is run on trail surface with 609m of total elevation gain, reaching a maximum altitude of 68m above sea level. For registration and full race details, visit the official Tokyo Marathon website.
Elevation Profile
This is a very challenging course with 609m of total elevation gain — significantly more than the average trail marathon. The route ranges from 4m to 68m above sea level (64m range). Hill training is essential, and runners should expect a significantly slower time compared to a flat course.
Expected Race Day Weather
Based on historical weather data for February, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 4°C to 16°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (0%), so dry conditions are likely.
Surface Type: Trail
Tokyo Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are inherently slower than road courses due to uneven footing, technical sections, and often steeper gradients. Trail-specific shoes with good grip are recommended, and runners should expect a finish time 10-20% slower than their equivalent road marathon time.
How Difficult Is Tokyo Marathon?
Our difficulty rating for Tokyo Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Tokyo Marathon against other marathons to find the right race for your goals.