The 2018 Croatia Open Umag (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 29th edition of the Croatia Open, and part of the ATP World Tour 250 Series of the 2018 ATP World Tour. It took place at the International Tennis Center in Umag, Croatia, from 15 July through 22 July 2018. Third-seeded Marco Cecchinato won the singles title.
Marco Cecchinato defeated Guido Pella, 6âÂÂ2, 7âÂÂ6<sup>(7âÂÂ4)</sup>
Robin Haase / Matwé Middelkoop defeated Roman Jebavý / Jià ÂàVeselý, 6âÂÂ4, 6âÂÂ4
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
The following pairs received wildcards into the doubles main draw:
The following pair received entry as alternates: