The 2021 Iași Open was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Iași, Romania between 12 and 18 July 2021.
Singles main-draw entrants Seeds Country Player Rank1 SeedHugo Gaston1621Enzo Couacaud1642Alexandre Müller1993Felipe Meligeni Alves2214Zdeněk Kolář2235Marius Copil2246Maxime Janvier2327Dimitar Kuzmanov2468 1 Rankings as of 28 June 2021.
Other entrants The following players received wildcards into the singles main draw: Cezar Crețu David Ionel Ștefan Paloși
The following player received entry into the singles main draw using a protected ranking: Matteo Donati
The following player received entry into the singles main draw as an alternate: Hernán Casanova
The following players received entry from the qualifying draw: Alexandar Lazarov David Poljak Dan Alexandru Tomescu Miljan Zekić
The following player received entry as a lucky loser: Bogdan Bobrov
Champions Singles
Zdeněk Kolář def. Hugo Gaston 7–5, 4–6, 6–4.
Doubles
Orlando Luz / Felipe Meligeni Alves def. Hernán Casanova / Roberto Ortega Olmedo 6–3, 6–4.
References