Defending champion in singles was Juan Mónaco , but he was eliminated in the semifinals against eventual winner John Isner and in doubles the Americans James Blake and Sam Querrey , who were eliminated in the first round, the pairing Jamie Murray and John won the doubles Win peers .
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 got a bye into the second round.
Qualification for the US Men's Clay Court Championships 2013 took place from April 6th to 8th, 2013. Four qualifying places were played, which entitle them to participate in the main draw of the tournament.
At the US Men's Clay Court Championships 2013, 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.