2014 U.S. National Indoor Tennis Championships – Singles

Kei Nishikori was the defending champion and successfully defended his title, defeating Ivo Karlović in the final, 6–4, 7–6(7–0).

2014 U.S. National Indoor Tennis Championships – Singles

Kei Nishikori was the defending champion and successfully defended his title, defeating Ivo Karlović in the final, 6–4, 7–6(7–0).