The field of participants in the single competition consisted of 28 players, that of the doubles competition consisted of 16 pairs. The four top seeded players in the singles each received a bye in the first round. The total prize money was 501,345 euros; the financial obligations amounted to 561,345 euros.
The qualification took place on May 18 and 19, 2018. Four qualifying places were played, which entitle them to participate in the main draw of the tournament.
The following prize money and world ranking points were paid out or credited for reaching the respective round. Players who moved into the main draw via qualification received the specified qualification points in addition to those for reaching the respective round. Otherwise the amounts are not to be understood as cumulative. Prize money for the double competition applies per team.
Andrés Molteni Adil Shamasdin
Dominic Thiem
Nick Kyrgio's Jack Sock
Laslo Đere
José Hernández
Joris De Loore
Filip Horanský
Jordi Samper Montaña
J. Sousa
M. Kukushkin
C. Norrie
M. Marterer
R. Albot
