|Full name||Komazawa Gymnasium|
|Operator||Tokyo Sport Benefits Corporation|
|Broke ground||August 1962|
|General contractor||Kajima Construction|
|Alvark Tokyo (2017-)|
Designed by Japanese architect Yoshinobu Ashihara, along with the landmark Control Tower, that features as a focal point of the park. The gymnasium venue hosted the wrestling events at the 1964 Summer Olympics.
- 1964 Summer Olympics official report. Volume 1. pp. 125–6.