In the current pro snooker tournament, they are using tiers of seeding to qualify 16 players for the main event. Everything is single elimination.
It looks like this:
64 players play 32 matches and the losers go home -- Round 1
32 new players are added and 32 matches are played -- Round 2
32 new players are added and 32 matches are played -- Round 3
The 32 players left play 16 matches and the losers go home -- Round 4 of the qualifiers leaving 16 qualified players
16 top players are added to make up the main event of 32 players
That means that a total of 144 players play in the event with 4 tiers of seeding, Rounds 1-3 and the main event.
I think some of the entrants in Round 1 don't actually have a tour card. If you sneak into Round 1 as an amateur, you have to win four increasingly tough matches to get into the main event, and then win five matches to win the event.
It looks like this:
64 players play 32 matches and the losers go home -- Round 1
32 new players are added and 32 matches are played -- Round 2
32 new players are added and 32 matches are played -- Round 3
The 32 players left play 16 matches and the losers go home -- Round 4 of the qualifiers leaving 16 qualified players
16 top players are added to make up the main event of 32 players
That means that a total of 144 players play in the event with 4 tiers of seeding, Rounds 1-3 and the main event.
I think some of the entrants in Round 1 don't actually have a tour card. If you sneak into Round 1 as an amateur, you have to win four increasingly tough matches to get into the main event, and then win five matches to win the event.