22: Top pair out of Small blind

Just want some feedback on how you agressive you play out of blinds with top pairs, against small field. I think I played this too agressive but I was pretty sure I had best hand, was going to fold to a re-raise against Seat 8.

NO_LIMIT TEXAS_HOLDEM $20+$2 (real money), #1,502,892,117
Raleigh Single Table Tournament, 22 Nov 2005 4:05 PM ET

Seat 1: ($1,485 in chips)
Seat 2: ($4,585 in chips)
Seat 4: Button ($2,420 in chips)
Seat 5: SB ($3,405 in chips)
Seat 7: Hero BB ($1,380 in chips)
Seat 8: ($1,185 in chips)
Seat 10: Villain($540 in chips)

Dealt to hero: 8 3 hearts.

ANTES/BLINDS
Seat 5 posts blind ($25), Hero posts blind ($50).

PRE-FLOP
($1,185 in chips) calls $50, ($540 in chips) calls $50, ($1,485 in chips) folds, ($4,585 in chips) folds, ($2,420 in chips) folds, ($3,405 in chips) folds, Hero checks.

FLOP [board cards 4H,8D,7C ]
Hero bets $175, ($1,185 in chips) folds, Villain bets $490 and is all-in, Hero calls $315.

TURN [board cards 4H,8D,7C,10C ]

RIVER [board cards 4H,8D,7C,10C,4D ]

SHOWDOWN
Villain shows [ 10D,JC ]
Hero shows [ 8H,3H ]
Villain wins $1,155.

SUMMARY
Dealer: Seat 4
Pot: $1,155
Seat 5, loses $25
Hero, loses $540
Seat 8, loses $50
Villain, bets $540, collects $1,155, net $615

[pineapple888]

Looks OK to me, in an unraised pot. Might as well bet out, then you have to call the shorty's push.