Paul these showdowns are 9 holes in each round, but you only play 3 holes at a time. It appears that you played the first 2 sets (hole 1-3) the (holes 4-6) you never played the 3rd set (holes 7-9).
You needed to play all 3 sets in the first round (qualifying) to advance to the elimination round. And then again all 3 sets in the second round (elimination) to advance to the final round.
The 3 set must be played within the time period for each round or you get a bogey for the holes not played.
Kinda/sorta like speed brackets (24 hours).