River play with bad river card

I think you check and hope he checks behind. If not it's a tough decision between x/c and x/f. The problem is that the only draw that doesn't get there by the river is 9 with a 10, J or Q. I still think I will call the river though. You are almost at the top of the range when taking this line (The top being AK) so you should be calling. But considering it is 10NL you might find be able to find a fold.

I prefer check /call if the bet is not to big in this situation, he might try bluff with hands like J10 QJ if u check , if he have flush u lose minimum and of course K for split..

if i bet i would most likely fold to a raise

I think pre flop defend might be a bit wide. Flop and turn ok. I would check call OTR. That way he can have some bluffs in his range but if we bet, we probably won't get called by worse since there is a 4 card straight and a possible flush.

If you are to defend this hand, better 3b as a bluff.
As played, I think that call on river is not that good.

I agree with just checking this hand and calling if he bets , unless he bets large.

I would not have defend this hand. As played, x/c river if bet is not bigger than 60%. This way, we don't need to win that often.

I x:ed river and villain overshoved and I folded..

Ha, yeah, that board surely displays the negative features of playing K9:f_biggrin: