Ah, sorry for the confusion, Darth. This should explain it.
The brackets are combinations of all users. In other words, both brackets have users from Divisions I through VI. The Best of the Rest is started first, and ends first. It consists of the botton 3 users in Division I, the bottom 5 in II, bottom 7 in III, bottom 9 in IV, bottom 11 in V, and bottom 13 in VI. This tournament is just another fun tournament, which will reveal which user is the "best of the rest", or the best of the users who didn't make the cup.
The CHUUL Cup is the sort of "life of the board". It's the big tournament, where the top 13 of Division I, top 11 of II, top 9 of III, top 7 of IV, top 5 of V, and top 3 of VI compete for the CHUUL Championship title.
Users are seeded based on their division and final standing, and seeded accordingly in both tournaments. The winners will be archived on the upcoming website, still under construction.
If you want to know which one you're in, you placed 3rd in Division III. Because the top 9 enter the cup, you are seed #27 in the CHUUL Cup; after the 13 Division I users, 11 Division II users, and the 2 users who placed above you in your division.
Link's on the bulletin.