東京都 新宿区
Flat
The largest race in the country, and the hardest to get into. The early kilometres trend downhill, so it is easy to go out faster than planned when swept along by the field. The crowds never thin out, which helps in the closing stages.
Observed at Tokyo on the same date over the past 5 years
A good temperature range for chasing a personal best. Avoid overdressing.
Source: Japan Meteorological Agency
