Usual fishy, weak-passive 1/2 GAME

8 handed, hero (150bb) opens UTG T8hh to 4bb
MP (50bb), CO and BB (110bb) call

Flop: A97ssh -> hero bets 10bb into 17bb
MP+BB flat

Turn 6d -> Hero bet 26bb into 57bb (i considered x /r since MP is pretty much autobetting when x to, but since i trapped him in an earlier hand by x/calling down, i thought he would probably not be too likely to stab too wide this time)

MP shoves for for 34bb, BB Flat, Hero completes the 8bb

River: 5s -> BB jams for his remaining 60ish BB -> Hero? (BB was a pretty old and tight guy, I saw him reraising a del cbet with a gutshot though, I also saw him beeing pretty passive with TP`S, x/c a lot, and just calling a riverbet when he tripped up"
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i know we need to be right around 22% of the times, but I dont see how we can be good often enough here?
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SPOILER: I foldet, both SB+MP had 86o, SB said: "I jammed because I knew you could never call", lol?!