Luca Castelnuovo

Luca Castelnuovo is a Swiss tennis player born on 29 January 1997. He competes on the ATP Tour and currently holds a ranking of 456 with 107 points, with a career high of 342. According to Tennis Post's match data, Castelnuovo played two matches in the 2026 season, losing both. He competed in two ATP 250 tournaments: Stuttgart in June and Chengdu in September, exiting in qualifying at each event.