Ranking system is broken

So yesterday i was playing a match as the brutes. 3 minutes in my teammate left… i quickly swoop in to take his bases and sent my troops to the capture points. since i have a bit of experience with rts games i knew that if i got my economy set up quickly i might be able to win and have enough income to support the troops needed to fight 2 armies.
after i got 3 points or so they capped one andd things got interesting.

after 19 minutes and 11 seconds i won and i still had over 1k tickets left.

how is it possible that a gold 3 wins on his on bs 2 others? that shouldnt be possible :confused:

ranking system broken or just bad opponents ?