What % of major tourney players are backed by sheets/bax?

[El Diablo]

Seems like every online player who plays in these except Alex Jacob and Strassa are backed by these guys.

How many horses do these guys have? In a standard WPT tourney, what % of the field is playing for sheets/bax?

Also, what about Ivey? Seems like every other non-online player is playing for him. How many horses does he have?

Anyone else besides these guys have big chunks of the fields?