IN A TRNY TODAY, 2500 OR SO ENTRANTS. I WORK MY WAY THROUGH 2 BREAKS AND AM IN THE MIDDLE OF ABOUT 250 PLAYERS LEFT. SOMEONE RAISES 3 TIMES MY BB, I CALL WITH MY POCKET 77.
FLOP IS K-K-7, I RAISE 3 TIMES THE POT WHICH IS ABOUT HALF MY STACK. THE OTHER PLAYER PUTS ME ALL-IN. AFTER MUCH THOUGHT I CALLED. OF COURSE HE HAD POCKET K-K AND ALL WAS LOST.

WHERE DID I GO WRONG??