Solo victory...

I carried my team and got 1st place for majority of the game. As people were gradually wiped out or left, including my team mates, I decided I might as well go for the solo if they all went inactive.

They all went inactive, proceeded to kick them. At this point I was at the required amount of points. Peru came back online and demanded to know why I was kicking them, so I stopped, explained that the game was basically empty, I had enough points to end it, and if we wanted to win as a team the two of us would need to gather about another 2000 or more points. He says that's not a problem, then proceeds to disappear again, hasn't come back in days. Meanwhile I'm at 2382 points, so I kick everyone and let the game finish, however I hadn't left the coalition. Has this voided my solo win? I can't see it on my stays.