SB is a LAGtard type 55/35/3 type, though he doesn't 3 and 4 bet much PF at least not that I had noted over 100+ hands.
Hero is on the BB with
UTG limps, UTG +1 overlimps, 2 folds, SB raises, Hero 3-bets, UTG folds, UTG+1 calls, SB caps, Hero and UTG+1 call.
Flop
SB bets, Hero raises, UTG+1 folds, SB calls
Turn
SB bets, Hero raises, SB 3-bets, Hero calls
River
SB checks, Hero checks it through