[ QUOTE ]
[ QUOTE ]
In a head-to-head situation, you're ahead after the flop, but are still an underdog if the hand shows down.
[/ QUOTE ]
AA vs. 15 out draw. The draw alone is 54%.
AA vs. flush draw + str8 draw
13 outs is 48%, but an extra pair make this 58.6%:
AA vs. flush draw + gutshot + pair
This draw is almost a 2-1 favorite:
AA vs. str8 flush draw + pair
[/ QUOTE ]
Make it an underpair facing 2 overcards and a str8 flush draw and the pair only has 28% equity:
Link
This is the worst case scenario I could find.