USMC allegedly won the round after the round that was reset, so it still would have ended up being 8-2. It was 7-1 when the round that got reset was started. 45e won the round, so it was 8-1. USMC won the next round finishing it at 8-2. Either way, it makes no difference to the positions of each team in the standings. The 45e and USMC standings were solidified at 2nd and 3rd place once the 45e won that 6th round.
So speaking of standings, here's how the post-season works: The playoffs consist of a semi-final and a final for leagues 1 & 2. In each respective league, the 1st place team is matched up against the 4th place team and the 2nd place team is matched with the 3rd place team. The winner of each match proceeds to the final. The winner of that match is the new 1st place team in that league and the loser remains the 2nd place team. The new top 2 teams in League 2 are automatically elevated to League 1 status and the bottom two League 1 teams are relegated down to League 2. There was going to be a cup for the bottom two League 2 teams to defend their positions, but Bean believes it isn't worth the extra time to do the matches which may be true. The top 2 teams in League 3 will have the opportunity to play the bottom 2 teams in League 2 to swap their places, though. *Shrug*
EDIT (05/04/2016): In the event of a 5-5 tie for a playoff match, there will likely be a tie-breaker round done to determine the winner. Confirmation will come soon.
So this is what the Semi-finals are looking like:
League 1
63e vs. 15thCC
3eVolt vs. 4th
League 2
PSG vs. 92nd (not confirmed yet)
45e vs. USMC
The 13thFL may still end up in 4th place if they somehow manage to beat the USMC. I'm just using the current standings to show what it'll look like.