The qualifier Raducanu vs the unseeded Fernandez was a teenaged US Open final that shocked almost everyone.
And in the end, it was the younger (by two months) Raducanu who went all the way.
Meanwhile, Desirae Krawczyk and Joe Salisbury won their third mixed doubles major of the season.
Saturday, Sept. 11, 2021
Women’s singles final
[Q] Emma Raducanu (GBR) def. Leylah Fernandez (CAN) 64 75 62
Mixed doubles final
 Desirae Krawczyk (USA) / Joe Salisbury (GBR) def. Giuliana Olmos (MEX) / Marcelo Arevalo (ESA) 75 62