I was at the casino and these 2 dudes were in a hand.

anyway, one guy had Ace/5 offsuit, other guy had Ace/9 offsuit.

the board was
4s 6c Ad Qc Qh

the guy with Ace/9 won, my question is why wouldn't they have split the pot ? do they not each have 2 pairs ?

or does the fact that the 5 is not higher then the 4 or the 6, so the 9 plays ?

thanks.