2011 U.S. Men's Clay Court Championships

The 2011 U.S. Men's Clay Court Championships was a men's tennis tournament played on outdoor clay courts. It was the 43rd edition of the U.S. Men's Clay Court Championships, and was an ATP World Tour 250 event. It took place at River Oaks Country Club in Houston, Texas, United States, from April 4 through April 10, 2011. Unseeded Ryan Sweeting, who entered the main draw on a wildcard, won the singles title.

Singles
🇺🇸 Ryan Sweeting defeated 🇯🇵 Kei Nishikori, 6–4, 7–6(7–3)
 * It was Sweeting's only singles title of his career.

Doubles
🇺🇸 Bob Bryan / 🇺🇸 Mike Bryan defeated 🇺🇸 John Isner / 🇺🇸 Sam Querrey, 6–7(4–7), 6–2, [10–5]

Seeds

 * Rankings and seedings are as of March 21, 2011.

Other entrants
The following players received wildcards into the main draw:
 * 🇺🇸 James Blake
 * 🇺🇸 Ryan Harrison
 * 🇺🇸 Ryan Sweeting

The following players received entry via qualifying:


 * Franko Škugor
 * Ivo Karlović
 * 🇺🇸 Tim Smyczek
 * Paul Capdeville

Withdrawals

 * Kevin Anderson
 * 🇦🇷 Juan Ignacio Chela (personal reasons)
 * 🇦🇺 Lleyton Hewitt (foot surgery)
 * 🇺🇿 Denis Istomin