I think I played it right, but not sure. Anyone else just check this river?

PokerStars 0.10/0.20 Hold'em (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Preflop: Hero is SB with 9, 9.
1 fold, UTG+1 calls, MP1 calls, 4 folds, Hero raises, BB calls, UTG+1 calls, MP1 calls.

Flop: (8 SB) 8, T, J (4 players)
Hero bets, BB folds, UTG+1 calls, MP1 calls.

Turn: (5.50 BB) A (3 players)
Hero checks, UTG+1 checks, MP1 checks.

River: (5.50 BB) 7 (3 players)
Hero bets, UTG+1 raises, MP1 folds, Hero calls.

Final Pot: 9.50 BB

Results in white below:
UTG+1 has Qs Kd (straight, ace high).
Hero has 9h 9d (straight, jack high).
Outcome: UTG+1 wins 9.50 BB.

Is this limit holdem?

yes

I don't see anything wrong here. Limit's rigged though.

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BOSS