Gauff, Fils win Cincinnati tennis titles in run-up to US Open

and won 71 percent of his first-serve points. Although Tiafoe saved three championship points in the final game, Fils ultimately closed out the match. The victory improved Fils' record to 10-0 in deciding sets this year and 8-0 against American opponents. It also marked his second win in as many meetings with Tiafoe, whom he previously defeated in three sets in Miami