Ignacio Buse
Ignacio Buse is a Peruvian professional tennis player. He has a career-high ATP singles ranking of world No. 98 achieved on 2 February 2026 and a best doubles ranking of No. 439 reached on 16 October 2023. He is currently the No. 1 singles player from Peru.
Buse has won two titles on ATP Challenger Tour. He represents Peru at the Davis Cup, where he has a W/L record of 1–0.
Junior career
Buse had good results on the ITF junior circuit, maintaining a 77–38 singles win-loss record. He was a runner-up in the boys' doubles category at the 2022 French Open, with compatriot Gonzalo Bueno.He reached an ITF junior combined ranking of world No. 9 on 3 January 2022.
Professional career
2023-24: Challenger doubles & singles finals, top 250
In August 2023, Buse reached his first Challenger doubles final in Lima partnering with Jorge Panta.In February 2024, Buse received a wildcard for the qualifying competition at the 2024 Chile Open.
In August, he reached his first Challenger singles final in Como, losing to Gabriel Debru in the final.
2025-26: ATP & Major debuts, Challenger titles, Top 100
In February 2025, Buse made his ATP Tour debut at the 2025 Chile Open, where he received a main draw wildcard. He lost in the first round to eventual champion Laslo Djere.In April, Buse reached the semifinals at the Aix Provence Open as a qualifier, with wins over second seed Luciano Darderi, his first top 50 win, and Reilly Opelka, Buse rose close to 40 positions up, reaching the top 175 in the singles rankings on 5 May 2025.
In June, Buse won his maiden Challenger title at the 2025 Neckarcup, defeating Guy den Ouden in the final. As a result he reached a career high singles ranking of world No. 152 on 9 June 2025.
In July, Buse entered his second ATP Tour tournament as a qualifier, at the Swiss Open and defeated fifth seed Laslo Djere, recording his first ATP win. He reached his first ATP Tour semifinal by defeating Kamil Majchrzak in the second round, and Román Andrés Burruchaga in the quarterfinals. As a result Buse reached a new career-high in the top 150 on 21 July 2025. He lost to Juan Manuel Cerúndolo in the semifinal.
In August, Buse made his Grand Slam debut as a qualifier at the US Open. He lost to sixth seed Ben Shelton in the first round.
In September, Buse won his second Challenger title at the Copa Sevilla, defeating Genaro Olivieri in the final. In November, at the 2025 Uruguay Open in Montevideo, Buse reached his third Challenger final of the season. As a result climbed to a career-high in the top 105 in the singles rankings on 17 November 2025, and to the top 100 on 5 January 2026.
Personal life
Buse is the nephew of world-renowned chef Gaston Acurio. His father Hans is a tennis coach. The stadium in Lima, Peru which is the home of Davis Cup where the matches are played, is called “” in honor of the Buse Brothers, Eduardo and Enrique Buse, Ignacio Buse’s grandfather and great-uncle.Performance timeline
Singles
ATP Challenger Tour finals
Singles: 4 (2 titles, 2 runner-ups)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | ||||||||||||||||||||||||||||||||||||||||||||||
| Loss | 0–1 | 2024 Città di Como Challenger – Singles| | Città di Como Challenger, Italy | Challenger | Clay |  dts|Jun 2025Doubles: 1 (runner-up)
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