Bug or cheater?

Hi everyone, i was playing this last round of GAC this nigh, calmly because my opponent haven't played yet. I entered the last battle due to time limit with the opponent score set to 0. Once the time was over the battle was cancelled and i can see the result of this round... My opponent has more points than me!!!!.. I played a total of 6 battles (all of them wins, not the last) so I'm figuring out how tf he manage to win 7 games in 2 minutes, while i was into that last one battle. I assume this task is not possible so I think this account is a cheater or even an error on the update of the round. The bug(?) is reported to EA, so I just want to let you know this happened. Maybe there is someone with same experience.