to improve ur hand speed do plenty of shadow boxing start off slow and staedy then the nxt round speed it up bt keeping ur punches clear. 1 combination thats a gd 1 is when ur opponent jabs duk and hit him with a jab to the body bringing 1 of his hands dwn to protect his body,so u can jab agen bt 2 his forhead knocking his head back,and raising his chin then jus finish off with a right cross to the chin.Try to stick to 3 punch combinations at ameature so your punches r clear and u impress the judges.