Top pair vs flush draw going into the river

[fefibecerra]

It has happened multiple times to me that after the turn I have top pair and villain has a flush draw (two cards of the same suit on the board). What's the best way of playing the hand in that situation?

Mathematically speaking, they only have a ~18% chance of hitting their flush, so the correct play would be to bet at least pot/4 in order to not give them the odds. But if we consider implied odds they would still call a pot/4 size bet. Hence probably around pot/3 or pot/2 would be better. Is that the correct reasoning?

 

[Flyer35]

Shove for sure! They're going to call (or even raise) regardless of what you bet, so make it count.

 

[fundiver199]

You dont know, what your opponent has, unless you reach showdown. Until then the opponent has a range, and flushdraws never make up 100% of that range. Therefore you can not develop a strategy, which is perfect against a flushdraw, because it might be bad against other parts of their range.

 

[Mr.$t0k]

I think you can bet more then pot/2 because you hand the best in this game time and you can force your opponent to buy more expensive