Billy Dib W8 Rogers Mtagwa... Featherweight prospect Billy Dib passed the first significant test of his pro career by defeating veteran tough guy Rogers Mtagwa. Dibs, an Australian fighting under the Golden Boy promotional banner, defeated Mtagwa by a wide margin, 80-72 and 79-73 (twice). He is now 17-0. Mtagwa falls to 24-12-2, which is deceiving because he fights perhaps the toughest schedule in his weight class.