It looks like a clear openshove for value to me. If there were no bounty on you, it would still be an openshove, but as a semibluff. Don't let them see the flop for cheap when you have a non-monster.
It goes without saying that I went out from the event long ago.
This decisive call seems a bit bad... Villain's VPIP/PFR were a bit too loose, but he hadn't 3-bet, so I think I had slightly less equity vs his range than the required 33%, except some ad hoc ranges like 99+, AJs+, KQs, AKo (Equilab's top 4.7%, vs which 77 has 34%).
PokerStars - $50+$5|100/200 Ante 25 NL - Holdem - 9 players
Hand converted by PokerTracker 4
MP+2: 7,119 (VPIP: 16.67, PFR: 11.11, 3Bet Preflop: 10.00, Hands: 18)
CO: 4,228 (VPIP: 33.33, PFR: 17.65, 3Bet Preflop: 0.00, Hands: 18)
BTN: 4,011 (VPIP: 5.56, PFR: 5.88, 3Bet Preflop: 0.00, Hands: 18)
SB: 4,255 (VPIP: 5.56, PFR: 5.88, 3Bet Preflop: 11.11, Hands: 18)
BB: 8,815 (VPIP: 11.11, PFR: 5.56, 3Bet Preflop: 0.00, Hands: 18)
UTG: 6,830 (VPIP: 27.78, PFR: 16.67, 3Bet Preflop: 14.29, Hands: 18)
UTG+1: 1,700 (VPIP: 22.22, PFR: 5.88, 3Bet Preflop: 0.00, Hands: 18)
Hero (MP): 7,887
MP+1: 6,340 (VPIP: 33.33, PFR: 16.67, 3Bet Preflop: 0.00, Hands: 18)
9 players post ante of 25, SB posts SB 100, BB posts BB 200
Pre Flop: (pot: 525) Hero has 7♥ 7♠
UTG raises to 500, fold, Hero raises to 1,100, fold, fold, CO raises to 4,203 and is all-in, fold, fold, fold, fold, Hero calls 3,103
Flop: (9,431, 2 players)
Spoiler
3♣ K♥ 5♦
Turn: (9,431, 2 players) 8♥
River: (9,431, 2 players) T♣
Hero shows 7♥ 7♠ (One Pair, Sevens)
(Pre 20%, Flop 2%, Turn 0%)
CO shows K♣ K♦ (Three of a Kind, Kings)
(Pre 80%, Flop 98%, Turn 100%)
CO wins 9,431