Floyd Mayweather Jr. vs. Marcos Maidana II
Floyd Mayweather Jr. vs. Marcos Maidana II, billed as "Mayhem", was a world championship boxing match held on September 13, 2014, in the MGM Grand Garden Arena in Las Vegas, United States.
The fight was won by Mayweather via unanimous decision, with scores of 116-111 twice and 115-112.
Fight card
| Weight Class | vs. | Method | Round | Time | Notes | - | ||
| Welterweight/Light Middleweight |  Floyd Mayweather Jr. | def. |  Marcos Maidana | UD | 12/12 | - | ||
| Lightweight | Mickey Bey | def. |  Miguel Vazquez | SD | 12/12 | - | ||
| Super Bantamweight | Léo Santa Cruz | def. | Manuel Roman | TKO | 02/12 | 0:55 | - | |
| Middleweight | James de la Rosa | def. | Alfredo Angulo | UD | 10/10 | |||
| Junior welterweight | Humberto Soto | def. | John Molina Jr. | UD | 10/10 | |||
| Welterweight | Daniel Prussak | def. | Pablo Polanco | TKO | 04/10 | 2:45 | ||
| Cruiserweight | Andrew Tabiti | def. | Caleb Grummet | TKO | 6/6 | 2:01 | ||
| Junior welterweight | Wilberth Lopez | def. | Damian Alejandro Sosa | UD | 6/6 | |||
| Welterweight | Fabian Andres Maidana | def. | Jared Teer | TKO | 1/4 | 2:07 | - |