wtf why does he do it on turn? when board pairs. eeeeew

pretty obvious. he checkraises the turn because this is a good board to multi-barrel as the PFR because it's dry, so it's unlikely when raszi fires the second barrel that he has the queen statistically. so he raises the turn to try to push raszi off of a twopair or worse hand and win the pot, otherwise he has outs if raszi has a queen and he gets pushed on. raising the flop obviously makes a good deal more sense but once you get to the turn it's not really that bad of a line. raszi can rarely go further in the hand and this line is not uncharacteristic of a QJ/QT/KQ/set type hand.