$100 H.O.R.S.E freeroll on FTP

I got taken out on 51st spot on the $100 HORSE freeroll, i'm disapointed because I was so close to the cash. I had a descent stack and had K 9 vs A K. Flop was J Q 6, i needed a 10 for a str8 but so did my opponent but I didn't know what he had. I wish I would of folded that hand, but I was trying to still the blinds. I hope to do well on another freeroll on FTP, and Pokerstars.