Use you're head; don't try to hit you're opponents head when he'll just jab, and counter you
Make a created character; with maxed out stats, for fun, u'll have an unstoppable dude
Counter and parry when you can; don't let you're opponenet hit you and Knock you Out
When you're stamina meter is flashing; Let rip!, you have unlimited stamina for a limited amount of time
When you're opponents stamina meter is flashing; Watch out!, they can rip you apart, block like hell, get out of there zone, and stay away
Train the right area's in career mode; Dont train you're strength I real high- train an area that needs work, (being real strong,is great but when you throw one punch and collapse-because you're stamina level is too low isn't)
Fight you're best; don't throw punchs that you know wont hit, it wears you down, Ur opponent will take advantage , judges will take it awat from you're score
Dirty moves; if you want fight dirty, or get that edge- get that dirty punch in, but don't get caught- there are consequences
Take these tips, and u'll be a unstoppable fighting machine!
Parry everything that comes at you, but you will need a lot of speed for this. After you parry your opponents punch use you boxers signature punch to get a strong shot in. After you constantly do this the ref will either stop the fight because after the parry he is left open or he will be knocked out.