Re: How do you counter a straight right hand?
Duck and overhand right, similar to the KO of PW by martinez. You basically duck their punch as you're simultaneously throwing your own right hand. Then the other variation is the slip outside of the right hand and throw your own at the same time, his guard is down because his hand is out there so perfect time to throw it. Personally my favourite is to lean back away from the right hand and throw your hook over it. They usually miss with the right hand and run into the left hook. Its basically a check hook.
From a southpaw stance, best way to counter a right is to throw your own straight left whilst moving away from his right.