It was an odd year for American tennis.
There were, as always, random thrills and breakthroughs. On the men’s side, for instance, Tommy Paul reached the semifinals of the Australian Open, and Christopher Eubanks enjoyed a late-career breakthrough at Wimbledon. But the year as a whole often felt like one of stagnation.
Taylor Fritz basically ended the year where he started from a rankings standpoint and couldn’t turn a top-10 ranking into sustained threats in Grand Slams. Frances Tiafoe dipped his toe into the ATP top 10 but suffered a major funk at the end of the year. Sebastian Korda seemed primed for a breakthrough but missed months with an injury. Reilly Opelka was still working back from injury. Jenson Brooksby was suspended for 18 months for missed drug tests. John Isner faded, then retired.
On the women’s side, Jessica Pegula and Coco Gauff both remained steady threats, but for much of the year, they, too, seemed to be running in place a bit. Veterans like Madison Keys, Danielle Collins and Sloane Stephens battled consistency issues. Jennifer Brady was still working back from injury.
The US Open changed quite a bit. Gauff kicked into top-three mode over the summer and…