Jessica Pegula won Sunday's ATX Open singles championship to become the first No. 1 seed to take the ATX Open title. It also is her first win of 2025.

Jessica Pegula said knowing how to win ugly was the key to her triumph over McCartney Kessler in Sunday's all-American final at the ATX Open in Austin.

Top-seeded Jessica Pegula defeated fellow American and No. 5 seed McCartney Kessler 7-5, 6-2 on Sunday to win the ATX Open final in Austin, Texas and record the seventh singles title of her career. Pegula converted 6 of 10 break points while downing Kessler in 83 minutes.

McCartney Kessler became the first player to make both the ATX Open singles and doubles final in the same year. She'll face top-seeded Jessica Pegula.

Pegula had dropped just one set all week, but Kessler looked set to change that when she rallied from 0-2 down to take a 4-2 lead in the first set.

Top-seeded Jessica Pegula recorded 31 winners while posting a 6-1, 4-6, 6-3 victory over Australia's Ajla Tomljanovic on Saturday to advance to the championship match of the ATX Open in Austin, Texas.

Jessica Pegula drew applause from an A-list actor on her way to claiming her first WTA title of the season in Austin, Texas. Pegula, the Buffalonian ranked No. 4 in the world, won the ATX Open as the tournament’s top seed,