The economic ripple effects of the Tokyo Legacy Half Marathon 2025

The Tokyo Marathon Foundation has conducted a study on the economic ripple effects of the Tokyo Legacy Half Marathon 2025, held on Sunday, October 19, 2025, and announces the results as follows.

Economic ripple effect in Japan: approximately 8.9 billion yen.
Economic ripple effect in Tokyo: approximately 6.36 billion yen.

The calculations were performed by Mitsumasa Etoh, Visiting Researcher at RIKEN and Part-time Lecturer at Tokyo City University.