Nishesh Basavareddy

He and Ozan Baris won the boys' doubles title at the 2022 US Open. He was ranked as high as No. 5 in the ITF Junior U18 Rankings and was a Tennis Recruiting blue-chip prospect, reaching a national ranking of No. 4 in February 2022. In 2022, he won three major junior tournaments: J1 Porto Alegre, JA Criciúma, and JA Milan. He also won the U14 Orange Bowl and was a member of the U.S. U14 team that won the World Junior Team Finals in the Czech Republic.

He entered Stanford University in the fall of 2022. As a freshman during the 2022-23 season, he won the ITA Fall National Championship and was named an ITA All-American. He was selected for the All-Pac-12 second team and earned ITA Northwest Region Rookie of the Year honors. He finished the season ranked No. 16 in singles and No. 22 in doubles, with a career-high ranking of No. 2 in singles. He won the ITA Northwest Super Regional and advanced to the round of 16 in both singles and doubles at the NCAA Championships.

In his sophomore season (2023–24), he won the Pac-12 Singles Player of the Year award and was named to the All-Pac-12 first team. He earned ITA All-America honors for the second consecutive year and was named ITA Northwest Region Player to Watch. He helped Stanford win the Pac-12 regular-season title, the program’s first since 2021. He ended the season ranked No. 12 in singles, with a 16-2 overall record and an 11-2 mark against ranked opponents. He also recorded three Pac-12 Player of the Week honors and reached the round of 16 at the NCAA Singles Championship. Off the court, he was named to the CSC Academic All-America second team and the Pac-12 Academic Honor Roll.

He reached the top 200 at world No. 199 on 30 September 2024, following his third Challenger final at the 2024 LTP Men's Open where he lost to Edas Butvilas. He won his maiden title at the 2024 Tiburon Challenger with a win over compatriot Eliot Spizzirri.

Following a final at the Champaign Challenger and his second Challenger title at the 2024 Puerto Vallarta Open, Basavareddy moved to a new career-high in the top 150 at world No. 139 on 25 November 2024.

He also qualified for the 2024 Next Generation ATP Finals where he recorded his first ATP win. Following the qualification, he announced he turned professional on 5 December 2024, foregoing his NCAA eligibility.

He made his ATP main draw debut at the 2025 Brisbane International after qualifying for the main draw with wins over former top-100 player Borna Gojo and former top-10 player Lucas Pouille. He lost to Gaël Monfils in three sets. A week later he also qualified for the main draw at the 2025 ASB Classic in Auckland and recorded his second win and first in an ATP main draw over lucky loser Francisco Comesaña in straight sets. He defeated the defending champion and world No. 23 Alejandro Tabilo in three sets to reach his maiden ATP quarterfinal and move into the top 115 in the rankings. Next, he defeated eight seed and compatriot Alex Michelsen to reach his first ATP semifinal and moved onto the top 110 in the ATP singles rankings. He became the youngest American to reach a tour-level semifinal on hardcourts since an 18-year-old Reilly Opelka in 2016 in Atlanta. However, he then fell to Gaël Monfils in the semifinals in two tough sets.

He received a main draw wildcard for his Grand Slam debut at the 2025 Australian Open. He lost in the first round to Novak Djokovic, but not before taking the first set against the former #1. He impressed Djokovic and the crowd with his performance in the match with a final score of 6-4, 3-6, 4-6, 2-6.

He qualified for the main draw of the 2025 Acupulco Open but lost to Denis Shapovalov,^[] and followed that up with first round losses in Indian Wells on his Masters debut, and at the 2025 Țiriac Open.^[] He defeated Otto Virtanen at the Open Aix Provence before losing to eventual finalist Stan Wawrinka. He reached the top 100 in the ATP singles rankings at world No. 99 on 23 June 2025 before the 2025 Wimbledon Championships, where he made his main draw debut.^[] He also made his debut at the 2025 US Open having received a wildcard for the main draw.