UTG is an extremely tight player, BB is the opposite, very LAG but catching a lot of rivers.

PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (5 handed)

BB (t6715)
UTG (t1435)
MP (t2435)
Button (t1065)
Hero (t1850)

Preflop: Hero is SB with , .
UTG calls t100, 2 folds, Hero completes, BB checks.

Flop: (t300) , , (3 players)
Hero checks, BB bets t250, UTG folds, Hero raises to t1750, BB folds.

Final Pot: t2300

I flopped a semi-decent hand, but here are my thoughts:

1) If I bet I will most likely get called by the big-blind with almost any holding and probably re-raised if he has any spade.
2) If I get any action from UTG I am most likely beat.
3) BB will almost definitely bet if I check to him.
4) If BB checks, I will also give up the hand, as I have only seen him check when he has a premium hand.

So I figure this, I can't bet any amount strong enough to define my hand that will drive out the BB, but I need to know if UTG is going to play, so I check knowing BB will bet, if UTG calls or raises I am out with almost no loss. UTG folds, so I now figure I am most likely ahead and push to take the pot, even if I get called I should be in a good position to double through.

This is not a move that I would normally make, but I was feeling pretty confident in my reads. Is this a good play or not?

I like it. Very well thought out.

With the caveat that I would have raised preflop to try to define UTG's hand.

So what was the result?

I like the play... I think it's pretty ballsy, unless you're 100% sure that BB will bet... Right now, there's a pretty good chance you have the best hand... BUT, if they BOTH check behind, you're chancing screwing yourself if another spade hits...

BTW... Fla... I think BB folds... "Hero checks, BB bets t250, UTG folds, Hero raises to t1750, BB folds."