Quick reference on they bye system.
An easy way to calculate byes is to use the rule of 4 and 8.

If a division has 4 or less competitors then the number of byes will be 4 minus the number of competitors.
If a division has more than 4 competitors then the number of byes will be the next interval of 8 minus the number of competitors.

So, if you have 3 fighters then there is 1 bye, if you have 5 fighters then there are 3 byes. If you have 10
fighters then you have 6 byes.

The bracket works left to right, the "fighter number" would be the chip that the competitor draws before the division begins.

The light colored number in between the brackets is the match number. The match number changes based on the number of byes because

a "bye" is considered an automatic win in that round, so any automatic win would eliminate the match number.

Use intervals of 4 and 8 to test this out, then use odd numbers to see it work.