At the U.S. championships singles in 1928, Lott beat Christian Boussus and John Doeg then lost to Frank Hunter in the semifinals.

[2] In 1931, Lott beat defending champion Doeg in the semifinals, then lost to Ellsworth Vines in the final.

In 1928, he won the Pinehurst Resort title on clay, defeating Shields in the final in a five-set match.

[1] In 1934, Lott became a touring professional, giving up his amateur status and the ability to play in Grand Slam tournaments.

[6][7] Lott was the men's tennis coach at [DePaul University from 1969 until his death in Chicago on December 3, 1991.