2011 USTA Challenger of Oklahoma – Singles

Bobby Reynolds defended his title by defeating Michael McClune 6–1, 6–3 in the final.

Seeds
• # 🇺🇸 Sam Querrey (semifinals)

• # 🇺🇸 Michael Russell (semifinals, withdrew due to illness)

• # 🇺🇸 Bobby Reynolds (champion)

• # 🇺🇸 Wayne Odesnik (second round, retired due to a quad strain)

• # 🇩🇴 Víctor Estrella (first round)

• # 🇺🇸 Rajeev Ram (quarterfinals)

• # 🇺🇸 Tim Smyczek (quarterfinals)

• # 🇺🇸 Alex Kuznetsov (first round, retired due to a quad strain)