The field of participants in the single competition consisted of 48 players, that of the doubles competition consisted of 16 pairs. The 16 top seeded players each received a bye into the second round.
Qualification for the Winston-Salem Open 2015 took place on August 22nd and 23rd, 2015. Four qualifying places were played, which entitle them to participate in the main draw of the tournament.
At the Winston-Salem 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 apply per player.