Milos Raonic [1] - Bye
Michael Russell - Donald Young [Q]
Benjamin Becker - Ryan Harrison
Denis Istomin [6] - Ryan Sweeting [Q]
Sam Querrey [3] - Bye
Lleyton Hewitt - Blaz Kavcic
Alejandro Falla - Flavio Cipolla
Marinko Matosevic [7] - Jack Sock [WC]
Fernando Verdasco [5] - Tim Smyczek [Q]
Ivo Karlovic - Steve Johnson [WC]
Jesse Levine - Bradley Klahn [WC]
Tommy Haas [4] - Bye
Xavier Malisse [8] - Go Soeda
Matthew Ebden - Rik de Voest [Q]
Vasek Pospisil - Evgeny Donskoy
John Isner [2] - Bye
http://www.atpworldtour.com/posting/2013/424/mds.pdf
Michael Russell - Donald Young [Q]
Benjamin Becker - Ryan Harrison
Denis Istomin [6] - Ryan Sweeting [Q]
Sam Querrey [3] - Bye
Lleyton Hewitt - Blaz Kavcic
Alejandro Falla - Flavio Cipolla
Marinko Matosevic [7] - Jack Sock [WC]
Fernando Verdasco [5] - Tim Smyczek [Q]
Ivo Karlovic - Steve Johnson [WC]
Jesse Levine - Bradley Klahn [WC]
Tommy Haas [4] - Bye
Xavier Malisse [8] - Go Soeda
Matthew Ebden - Rik de Voest [Q]
Vasek Pospisil - Evgeny Donskoy
John Isner [2] - Bye
http://www.atpworldtour.com/posting/2013/424/mds.pdf