[Kyriefurro]

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How is it 3:1 ?
It's a $15 call into a $24 pot. That's not even 1:2

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My math:
$4 in the pot + Villain bets $4 = $8
Hero raises to $8 = $16
Villain raises another $15 = $31

Hero must call another $7 to match villain's bet.

Looks like a little over 4:1 to me.