Who wins flush?

Even with a flush on the board in Texas Hold'em the players can still use their hold cards to form the five card hand. This is important since if a player holds a matching suit it may be higher than one of the cards on the board.

When comparing to flushes you determine the highest hand by looking at the ranks of the cards, starting with the highest. If the highest rank matches, then compare the second, and third and so on.

For example:
Board: As Ks 9s 7s 2s
Jim: 8c 5d
Tam: Ts Th

Jim's Hand is thus: As Ks 9s 7s 2s
Tam's Hand is however: As Ks Ts 9s 7s

You can thus see in the third position Tam has a higher valued card and is the winner of the pot.

If neither player has a higher hand then the pot is simply split.