2025 Croatia Open Umag
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| 2025 Croatia Open Umag | |
|---|---|
| Date | 20–26 July |
| Edition | 35th |
| Category | ATP 250 |
| Draw | 28S / 16D |
| Surface | Clay |
| Location | Umag, Croatia |
| Champions | |
| Singles | |
 Luciano Darderi | |
| Doubles | |
 Romain Arneodo /  Manuel Guinard | |
The 2025 Croatia Open, also known as the Plava Laguna Croatia Open Umag for sponsorship reasons, was a men's tennis tournament played on outdoor clay courts. It was the 35th edition of the Croatia Open, and an ATP 250 tournament on the 2025 ATP Tour. It took place at the International Tennis Center in Umag, Croatia, from 20 July until 26 July 2025. Second-seeded Luciano Darderi won the singles title.[1]
Singles
Luciano Darderi defeated 
Carlos Taberner, 6–3, 6–3
Doubles
Romain Arneodo / 
Manuel Guinard defeated 
Patrik Trhac / 
Marcus Willis, 7−5, 7−6(7−2)
Singles main draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 ARG |
Francisco Cerúndolo | 20 | 1 |
| ITA |
Luciano Darderi | 55 | 2 |
| ARG |
Camilo Ugo Carabelli | 59 | 3 |
 BIH |
Damir Džumhur | 70 | 4 |
| ARG |
Mariano Navone | 75 | 5 |
 ESP |
Roberto Carballés Baena | 79 | 6 |
 POL |
Kamil Majchrzak | 81 | 7 |
 CZE |
Vít Kopřiva | 83 | 8 |
- 1 Rankings are as of 14 July 2025.[2]
Other entrants
The following players received wildcards into the main draw:
The following player received entry as an emergency subtitution:
The following players received entry from the qualifying draw:
Withdrawals
Tallon Griekspoor → replaced by Pierre-Hugues Herbert
Hubert Hurkacz → replaced by Francesco Passaro- Valentin Royer → replaced by
Dušan Lajović 
Stefanos Tsitsipas → replaced by 
Stan Wawrinka
