My fastest game!

In the Spring Marathon, I berserked a game and did not take much care of my clock. At move 28, I had 40 seconds left while he had 3 minutes! I still won with 14 seconds left. Tell me how I did!

It's good for the Pursuit of Brilliance!

Here's the link:
http://en.lichess.org/dPDVxFg4

How is this a fast game?

I somehow lost most of my time so I had to use speed to mate him before my clock runs down.