When to go against your plan?

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PokerStars No-Limit Hold'em Tourney, Big Blind is t400 (9 handed) FTR converter on zerodivide.cx

UTG+1 (t23425)
MP1 (t17738)
MP2 (t29446)
MP3 (t20018)
CO (t18550)
Button (t21905)
Hero (t11135)
BB (t17210)
UTG (t26805)

Preflop: Hero is SB with J[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">UTG+1 raises to t2000</font>, <font color="#666666">5 folds</font>, Hero calls t1800, <font color="#666666">1 fold</font>.

Flop: (t4000) A[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG+1 bets t1200</font>, Hero calls t1200.

Turn: (t6400) 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG+1 bets t1600</font>, <font color="#CC3333">Hero raises to t7910</font>, UTG+1 calls t6310.

River: (t22220) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: t22220


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Not specifically looking for comments on this hand, i botched it and am aware.

But this made me think.. when he raised PF i decided that i was going to cheeck raise all-in on any non-AK flop.

Then when the A came on the flop i was ready to give it up... then he made a bet 1/2 the size of his preflop raise...

What the hell is that? Obvious trap? Middle pair? I dont know, it seemed like a trap.. and i bit hard.


But it made me think, what has to happen fr you to stop folowing your plan of action?