Just for practice, what would be the highest raise to make after the flop that would only just give the villain pot odds to call? Putting him on a range of any broadway cards still gives Hero about 80% equity.
Villain has 20% equity which means odds of 4:1 to win.
Pot after the flop: 1.47
Villain raises 0.90 = $2.37
Hero will call 0.90 and then bet on top, so pot will be $3.27 + Bet
Therefore,
$3.27 + Bet = 4 x (bet)
$3.27 = 3 x (Bet)
Bet = $3.27/3 = $1.09.
Hero should raise flop by $1.09 at least to try and get Villain to make a mistake.
Am I even in the right ballpark?