50NL river bluff in pretty big pot

[Rollos]

I had seen villian miniraise other people about twice on dry flops like these, so I honestly felt like he had nothing when he raised me. Once he called my turn bet, I put him on either 55-88 or a weak queen like QJo and felt like a bet would take this down enough to be +EV.

My image has also been very tight, I think I was something like 8% preflop raise

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool (http://poker-tools.flopturnriver.com/Hand-Converter.php) from FlopTurnRiver.com (http://www.flopturnriver.com) (Format: 2+2 Forums)

SB ($123.25)
BB ($16.50)
UTG ($54.50)
MP ($36.05)
Hero ($49.25)
Button ($95.25)

Preflop: Hero is CO with J/images/graemlins/diamond.gif, 9/images/graemlins/diamond.gif.
<font color="#666666">1 fold</font>, MP calls $0.50, <font color="#CC3333">Hero raises to $2.5</font>, <font color="#666666">3 folds</font>, MP calls $2.

Flop: ($5.75) 4/images/graemlins/heart.gif, 4/images/graemlins/club.gif, Q/images/graemlins/spade.gif <font color="#0000FF">(2 players)</font>
MP checks, <font color="#CC3333">Hero bets $3.5</font>, <font color="#CC3333">MP raises to $7</font>, Hero calls $3.50.

Turn: ($19.75) A/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
MP checks, <font color="#CC3333">Hero bets $10</font>, MP calls $10.

River: ($39.75) 2/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
MP checks, <font color="#CC3333">Hero bets $20</font>

So anyone like?

[Sigurd]

Without actually having some kind of read, supporting that villain is actually capable of folding I'll just give it up when raised on the flop.

[deluz35]

I dont like the river bluff here because he's shown a willingness to call you/raise you on every street so far.

The 2/images/graemlins/club.gif changes nothing. So if he called your turn bet, there's no reason for him to fold here (unless he's a weak player). Only run this kind of bluff on someone you have already established as a loose passive who will give up on the river. But I'd be surprised if he folded here.

It's also not inconceivable that villain hit a weak ace on the turn.