Kettering Kickoff had 47 yeams at it's event. It started out bad with
a team impacting the wall in autonomous that is shut down the event for half an hour to dealing with teams having issues connecting with the field and a very competitive eliminations (most of the teams at the event were at MSC). The competition ended at 9pm! If you are doing a one day event I would recommend using no more than 42 teams at most and going with 32 to 36 teams instead.