[tagtastic]

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Busted draws will usually check behind at these stakes against players who fired twice.

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I agree, but busted draws who happen to pair will likely fold to a bet (and those who don't pair will fold as well). This is read dependent though, river betting into a call station here is a bad idea, as he'll likely call with a small pair, but a decent player will often fold a hand that would beat an unimproved AK.