After all judging rounds have been completed, scores have been entered, administrators can then assign judges to the Best of Show round.
From the main Administration page: Expand the Scoring section; click "Best of Show Judges" under the Assign heading
From Admin on the top menu: Scoring > Assign > Best of Show Judges
Indicate the judges that will be assigned to the BOS round. Only available judges that indicated their BJCP rank as Certified, National, Master, or Grand Master I-IV are displayed.
Check the box next to the name of each judge that will be assigned to the BOS round and click the "Assign as BOS Judges" button.