2009 U.S. Men's Clay Court Championships – Singles

Lleyton Hewitt beat Wayne Odesnik in the final, 6–2, 7–5.

Seeds
• # 🇺🇸 James Blake (first round)

• # 🇺🇸 Mardy Fish (first round)

• # 🇦🇹 Jürgen Melzer (second round)

• # 🇫🇷 Jérémy Chardy (second round)

• # 🇺🇸 Sam Querrey (withdrew due to leg injury)

• # 🇪🇸 Marcel Granollers (second round)

• # 🇦🇷 Diego Junqueira (first round)

• # 🇦🇷 Máximo González (first round)

Seeds
• # 🇺🇸 Kevin Kim (second round)

• # 🇨🇦 Jesse Levine (qualifying competition, lucky loser)

• # 🇧🇦 Amer Delić (qualifying competition, lucky loser)

• # 🇺🇸 Donald Young (qualifying competition)

• # 🇺🇸 Ryan Sweeting (second round)

• # 🇪🇨 Giovanni Lapentti (qualified)

• # 🇦🇹 Alexander Peya (qualified)

• # 🇺🇸 Scoville Jenkins (qualified)

Qualifiers
• # 🇺🇸 Michael Russell

• # 🇦🇹 Alexander Peya

• # 🇪🇨 Giovanni Lapentti

• # 🇺🇸 Scoville Jenkins

Lucky losers
• # 🇨🇦 Jesse Levine

• # 🇧🇦 Amer Delić