Lorenzo Giustino

Lorenzo Giustino (; born 10 September 1991) is an Italian tennis player. He has a career-high ATP singles ranking of world No. 127 achieved on 12 August 2019 and a career-high ATP doubles ranking of No. 311 achieved on 15 April 2019. Giustino has won two singles titles and one doubles title on the ATP Challenger Tour.

Career Giustino made his ATP main-draw debut as a qualifier at the 2015 BRD Năstase Țiriac Trophy, where he lost to fifth seed Guillermo García López in the first round.

In June 2019, he won his first ATP Challenger singles title in Almaty, defeating Federico Coria in the final.

Giustino made his Grand Slam main-draw debut at the 2020 Australian Open, losing to Milos Raonic in the first round.

Giustino defeated Corentin Moutet 0–6, 7–6 (7), 7–6 (3), 2–6, 18–16 in the first round of 2020 French Open as a first time main-draw qualifier at this Major. The match was the second-longest in French Open history, lasting six hours and five minutes. It was Giustino's first ATP tour-level win. He lost to 12th seed Diego Schwartzman in the second round.

Giustino played in his first ATP 500 tournament at the 2021 Dubai Tennis Championships as a lucky loser receiving a bye into the second round after the withdrawal of 10th seed Borna Ćorić. He lost to Aljaž Bedene.

He qualified for his second ATP 500 at the 2023 Barcelona Open Banc Sabadell, losing to Alexander Shevchenko in the first round.

Giustino won his second ATP Challenger singles title at the 2025 Monastir Open, defeating Petr Brunclík in the final.

Performance timeline

Singles

Challenger and Futures finals

Singles: 33 (15–18) Legend (singles)ATP Challenger Tour (2–5)ITF Futures Tour (13–13)Titles by surfaceHard (2–5)Clay (13–13)Grass (0–0)Carpet (0–0)

Doubles: 6 (3–3) Legend (doubles)ATP Challenger Tour (1–0)ITF Futures Tour (2–3)Titles by surfaceHard (0–1)Clay (3–2)Grass (0–0)Carpet (0–0)