Isn't there a match for 3rd place in a double elimination system?
In a standard double elimination system, there isn't. This is just a slightly non-standard format (double elimination is only used as a basis). Before the tournament, I showed the format in pictures in the tournament header and in the groups and in the playoffs, plus the schedule compiled in the header also remained (I didn't remove it); it also indicates a match for 3rd place. This was done solely for entertainment purposes.