Just Wondering...runner runner odds?

Was playing in a tournament (no it didnt happen) but I was wondering what the odds were of hitting runner runner to get quads.
For example:

Player 1: AA
Player 2:K9
Flop: A69
Turn: 9
River: 9

Player 2 wins with quad 9s!

lol just really curious of what the odds are.

pokerstove.com

1080 to 1, Super System

Or in case you'd like to know how to actually calculate this scenario, assuming we know both players' hands and the flop as shown and you want the running nines to make your quads:
2/45*1/44 = 0.1010101010101...%, which is about 1000 to 1.

slipknot4life said:

1080 to 1, Super System

Click to expand...

This is close but doesn't account for knowing your opponents hole cards like in our scenario. It only assumes you know your hole cards and the flop and that you want to know the odds of hitting two specific running cards in the deck.
2/47*1/46 = 0.0925% which is about 1080 to 1.

If I am the player thats need the runner runner than the odds are 0 if the other player needs it there is a good chance its coming.......lol

ahh lol fun stuff thanks guys. yeah looked over SS ^^