Couple of things are in effect here. UTG+2 got crippled early, but has made a really strong come back by getting AA multiple times in short succession. Hasn't shown down a hand worse than AK. MP is pretty active, but not crazy active.

I don't think there is a lot of reason to consider 3 betting. While it's probalby not horrible, we are more than deep enough to set mine. Flop seem standard enough. Turn checks around, so I'm thinking TT is probably really good here and we should be able to check/call a normal river bet.

Then that happens, and I'm left scratching my head. I'm just not sure what kind of hands get played like this that I'm beating, other than 77-99. If he wanted to bluff, this seems like a very strange sizing to do it with??

Note: I know it's not supposed to effect my thinking, but I've been running atrociously bad this week. I'm about 32% in coin flips, 26% in 80/20s and exactly 0% in 20/80's over about 30 tournaments. So as much as it's not supposed to effect me, it is. While I probably should of gone to play golf today for that reason, I'm playing decent so far.  

PokerStars - $100+$100+$15|20/40 NL - Holdem - 9 players
Hand converted by PokerTracker 4

UTG+2: 70 BB (VPIP: 23.08, PFR: 12.82, 3Bet Preflop: 10.53, Hands: 39)
MP: 145.58 BB (VPIP: 34.21, PFR: 10.53, 3Bet Preflop: 11.11, Hands: 39)
MP+1: 198.75 BB (VPIP: 31.43, PFR: 8.57, 3Bet Preflop: 15.38, Hands: 35)
CO: 101.13 BB (VPIP: 25.64, PFR: 18.42, 3Bet Preflop: 0.00, Hands: 39)
BTN: 131.98 BB (VPIP: 17.95, PFR: 7.69, 3Bet Preflop: 0.00, Hands: 39)
SB: 99.75 BB (VPIP: 17.95, PFR: 15.38, 3Bet Preflop: 6.67, Hands: 39)
Hero (BB): 104.83 BB
UTG: 117.78 BB (VPIP: 30.77, PFR: 12.82, 3Bet Preflop: 0.00, Hands: 39)
UTG+1: 162.73 BB (VPIP: 35.90, PFR: 12.82, 3Bet Preflop: 10.00, Hands: 39)

SB posts SB 0.5 BB, Hero posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has  T T 

fold, fold, [color=red]UTG+2 raises to 2 BB[/color], MP calls 2 BB, fold, fold, fold, fold, Hero calls 1 BB

Flop: (6.5 BB, 3 players)  6 5 6 
Hero checks, [color=red]UTG+2 bets 3 BB[/color], MP calls 3 BB, Hero calls 3 BB

Turn: (15.5 BB, 3 players)  5 
Hero checks, UTG+2 checks, MP checks

River: (15.5 BB, 3 players)  5 
Hero checks, [color=red]UTG+2 bets 20 BB[/color], [color=red]MP raises to 40 BB[/color], HERO???