I have updated the schedule to reflect a change that has been made for the end of the season. I added a 5th week of games and decided that there will not be a end of season tourney. The champion will be decided by best record over the 5 weeks of play.
A couple reasons for the change. 
1) Each team will get an even amount of games. With doing a single elimination tourney, some teams will get one game while others can get 3 or 4.
2) A 15 team tourney would likely need to be split up over two weeks. Right now, I'm likely not available the last week of September.

I apologize for the change in format in the middle of the season. Please let me know if you have any questions.

Thanks!

John