SB has a stack of 23847 and his stats are VPIP: 41, PFR: 19, 3B: 12, AF: 1,1, Hands: 111. This is midgame of a $30 MTT with 41 to start. I don't think he knows much about position, so I assign him a wide calling range even from SB.

I go for a cbet as I think I can rep the king and the pot here a lot of the time, plus given how he's played I I'm still in front of his range which is very wide.

I see no reason to bet here, but checking to control the pot.

I'm leaning towards a call on the river, as I can't see I'm beat often. The only thing that would make some sense is a ten, but I think he'll bet those on the turn often too. He'll bet a king on the turn, so I'm leaving that out of his range. To sum up I see his range consist of a lot of bluffs, missed flush draw in particular, and only few hands that beat me.