The ratio

https://www.wellandgood.com/run-clubs-for-dating/#:~:text=Run%20Clubs%20Offer%20an%20IRL%20Alternative%20to%20Dating%20Apps&text=Living%20in%20the%20thick,began%20to%20spike%20in%20popularity.
 

https://www.nytimes.com/2024/06/13/style/running-clubs-dating.html
 

The ratio of men to women in this photo kind of reflects the imbalance in the dating ecology of men and women in New York City.