A decade's worth of newspaper's sports sections are full of references to Rosenfeld, "undoubtedly the greatest all-around woman athlete in the world," and her "vast army of admirers." Whether "the super woman athlete" was playing defense for the Lakesides basketball squad, center for the North Toronto Ladies ice hockey team or short stop for the Hinde and Dauche softball club, Rosenfeld led them all to championships again and again. Just one example, from 1931: "Besides managing the [Maple Leafs softball] team, she played first base, and her fielding, hitting and 'fight' brought the Leafs from the cellar to the championship."

In 1924 she even won the Toronto Ladies Grass Courts tennis championship.

Constance Hennessey, one of the founding members of the Toronto Ladies Athletic Club, remembered Rosenfeld as, "not big, perhaps five-foot-five. She didn't look powerful but she was wiry and quick. Above all she was aggressive, very aggressive physically. No, I don't mean that she made a lot of noise or had a belligerent manner. She simply went after everything with full force....She was just the complete athlete and I am certain she would have been good at any sport. Certainly, she was as good as one could see in track and field, hockey, basketball and softball.

Or, more simply, in the words of one historian: "If any single individual epitomized women's sport in the 1920's, she did."