Very Tough fold but not really

Very tough fold here but I did it. I was new to table and had no read on anyone when this happened.

PokerStars Game #21757269757: Tournament #117545814, Freeroll Hold'em No Limit - Level II (15/30) - 2008/11/04 14:22:05 ET
Table '117545814 56' 9-max Seat #9 is the button
Seat 1: vegaspokerst (1160 in chips)
Seat 3: Brann6 (1270 in chips)
Seat 4: mikeybalist (1730 in chips)
Seat 5: PHLAMEZZZZZZ (350 in chips)
Seat 6: edfjv88 (1595 in chips)
Seat 7: uzi 4 all (4640 in chips)
Seat 8: JKravat (4465 in chips)
Seat 9: rivermike15 (2830 in chips)
vegaspokerst: posts small blind 15
Brann6: posts big blind 30
*** HOLE CARDS ***
Dealt to JKravat
mikeybalist: calls 30
PHLAMEZZZZZZ: folds
edfjv88: folds
uzi 4 all: calls 30
JKravat: raises 150 to 180
rivermike15: raises 510 to 690
vegaspokerst: folds
Brann6: folds
mikeybalist: folds
uzi 4 all: calls 660
JKravat: calls 510
*** FLOP ***
uzi 4 all: bets 240
JKravat: calls 240
rivermike15: calls 240
*** TURN ***
uzi 4 all: bets 30
JKravat: calls 30
wtfdo0d is connected
rivermike15: raises 600 to 630
uzi 4 all: raises 600 to 1230
JKravat said, "folding a monster here"
JKravat: folds
rivermike15: raises 670 to 1900 and is all-in
uzi 4 all: calls 670
*** RIVER ***
JKravat said, "AA"
*** SHOW DOWN ***
uzi 4 all: shows (three of a kind, Tens)
rivermike15: shows (a pair of Tens)
uzi 4 all collected 6695 from pot
*** SUMMARY ***
Total pot 6695 | Rake 0
Board
Seat 1: vegaspokerst (small blind) folded before Flop
Seat 3: Brann6 (big blind) folded before Flop
Seat 4: mikeybalist folded before Flop
Seat 5: PHLAMEZZZZZZ folded before Flop (didn't bet)
Seat 6: edfjv88 folded before Flop (didn't bet)
Seat 7: uzi 4 all showed and won (6695) with three of a kind, Tens
Seat 8: JKravat folded on the Turn
Seat 9: rivermike15 (button) showed and lost with a pair of Tens