Defending champion in the singles was Rafael Nadal , who surprisingly lost to qualifier Michael Berrer in the first round of this year's event . His compatriot David Ferrer won the final against Tomáš Berdych , who won the title together with Jan Hájek in the double competition last year . This year Rafael Nadal secured himself together with Juan Mónaco after a final victory over the Austrian duo Julian Knowle and Philipp Oswald in two sets.
The field of participants in the individual competition consisted of 32 players, that of the doubles competition consisted of 16 pairs.
Qualification for the Qatar ExxonMobil Open 2015 took place from January 3rd to 5th, 2015. Four qualifying places were played, which entitle them to participate in the main draw of the tournament.
At the Qatar ExxonMobil Open 2015, the following prize money and world ranking points were paid out or credited for reaching the respective round. Players who entered the main field from 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. The amounts for the double competition were per player.