Juan Ignacio Chela was the defending champion in the singles, but he could not compete this year due to injury. The individual competition was won by the American Ryan Sweeting , who was equipped with a wild card, and in the final he defeated the Japanese Kei Nishikori . This was Sweeting's only career title. In doubles, Bob and Mike Bryan were able to successfully defend their title from the previous year, which was the fourth time they were tournament winners in Houston. In a purely American final, they were able to prevail against John Isner and Sam Querrey . For the Bryans it was the second tournament win of the season and the 69th joint title.
The field of participants in the single competition consisted of 28 players, that of the double competition consisted of 16 pairs. The four top seeded players in the singles each got a bye into the second round. The four top seeded players in the singles each got a bye into the second round. The total prize pool was $ 442,500; total financial liabilities were $ 500,000.
The qualification took place from April 2-4, 2011. 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.