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Ignacio Buse Makes History, Advances to ATP 500 Quarter-Finals

2/20/2026

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Summary

Story summary

Ignacio Buse defeated Joao Fonseca 5-7, 6-3, 6-4 in the Rio Open on February 19, 2026, advancing to his first ATP 500 quarter-final and becoming the first Peruvian to reach that stage since 2009.
Buse saved eight of nine break points as Fonseca committed 43 unforced errors.
Buse will face Matteo Berrettini in the quarter-finals.
Fonseca, previously in strong form, struggled at crucial moments and lost before his home crowd in Rio.

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Story summary

Ignacio Buse defeated Joao Fonseca 5-7, 6-3, 6-4 in the Rio Open on February 19, 2026, advancing to his first ATP 500 quarter-final and becoming the first Peruvian to reach that stage since 2009.
Buse saved eight of nine break points as Fonseca committed 43 unforced errors.
Buse will face Matteo Berrettini in the quarter-finals.
Fonseca, previously in strong form, struggled at crucial moments and lost before his home crowd in Rio.