Ive not looked at any othe the other comments... and i had the sound off but neither guy really connected very much, Castillo was the the fighter coming forward but Mayweather looked happy and in control of everything that was happening. If i wasn't allowed to score 10-10 I would maybe lean towards Mayweather. Reasons being no significant punches and although Castillo was coming forward I dont think he really managed to put Mayweather under any meaningful pressure and Mayweather movement and defence was probably more impressive.