Anyone else think we're beat here-- either oversetted or villain has a 5 in his hand? Villain is 25/10/2-ish over 160 hands.

Ultimate Bet
No Limit Holdem Ring game
Blinds: $0.05./$0.10.
8 players
Converter

Stack sizes:
UTG: $5
UTG+1: $6.08
MP1: $11.46
MP2: $4.37
CO: $6.16
Button: $11.30
SB: $2.55
Hero: $9.82

Pre-flop: (8 players) Hero is BB with 4 4
UTG (poster) checks, UTG+1 folds, MP1 calls, MP2 folds, CO calls, Button folds, SB calls, Hero (poster) checks.

Flop: 7 6 4 ($0.5, 5 players)
SB checks, Hero bets $0.4, UTG calls, MP1 folds, CO calls, SB folds.

Turn: 8 ($1.7, 3 players)
Hero checks, UTG checks, CO bets $1.7, Hero calls, UTG folds.

River: J ($5.1, 2 players)
Hero checks, CO is all-in $3.96, Hero?