Board Game Arena

There's a (unreasonable) problem face last game.It's a 3 player game. I have 380 elo and other 2 players have 350 and 150,and the 350 player quit in the middle of the game(69%) making me [a tie vs 150] and [a win vs 350] which only gives me +1.19 point total (-1.99 for the tie and +3.18 for the win ...