I played this game:
I destroy his proxy, and make a b-line to his main. In the fracas that followed, I realized in the replay that this gold player WON THIS GAME. That is, there were several times when he was able to destroy my remaining units and claim map control over my main.
Now assuming that I in fact lost this game, is there a better composition to realistically obtain before engaging this? Or did I make the fatal decisions before hand that cost me the match?