From Boxrec Boxing Encyclopaedia
- Mayweather kept his distance and outboxed Castillo early. Castillo was able to get inside and land to the body in the middle rounds. Mayweather secured the fight by boxing and moving late.
- HBO unofficial scorer Harold Lederman had Mayweather ahead 115-113. Fellow analyst Larry Merchant also scored it 115-113 for Mayweather.
- CompuBox had Mayweather landing 162/399 and Castillo 137/604. Power shots: 74/164 Mayweather, 101/427 Castillo.
- Mayweather's Ring Magazine Lightweight Championship was on the line.