At Xebio Arena, Sendai, Japan, Shinsuke Yamanaka vs. Tomas Rojas, 12, for Yamanaka's WBC bantamweight title; Toshiyuki Igarashi vs. Nestor Narvaes, 12, for Igarashi's WBC flyweight title.
At Bell Centre, Montreal, Lucian Bute vs. Denis Grachev, 12, for Bute's NABF light heavyweight title; Pier-Olivier Cote vs. Ali Chebah, 12, for Cote's IBF Inter-Continental junior welterweight title.
At Cosmopolitan Resort, Las Vegas (SHO), Richard Abril vs. Sharif Bogere, 12, for the vacant WBA World lightweight title.
At Emerald Casino, Tacoma, Wash., Vitaliy Demyanenko vs. Damian Frias, 10, welterweights.
At Marina Bay Sands Hotel, Singapore, Chris John vs. Chonlatarn Piriapinyo, 12, for John's WBA Super featherweight title.
At O2 World Arena, Hamburg, Germany, Wladimir Klitschko vs. Mariusz Wach, 12, for Klitschko's WBA-WBO-IBF heavyweight titles.
At Wynn Resort, Las Vegas (HBO), Vanes Martirosyan vs. Erislandy Lara, 12, junior middleweights.
At Home Depot Center, Carson, Calif., Brian Viloria, vs. Hernan Marquez, 12, for the WBA Super World and WBO flyweight titles.
At Staples Center, Los Angeles (SHO), Abner Mares vs. Anselmo Moreno, 12, for Mares' WBC super bantamweight title; Alfredo Angulo vs. Raul Casarez, 10, junior middleweights; Nathan Cleverly vs. Ryan Coyne, 12, for the WBO light heavyweight title.