101 - The combined Official World Golf Rankings positions of quarter-final opponents Ross Fisher (53rd) and Hideto Tanihara (60th).
0 - play-off matches on Saturday.
1 - There was only one player in the quarter-finals who made it to the same stage last year - Dustin Johnson.
75 - The World Number One has led in 75 of the 76 holes he's played.
4 - years since a player won back-to-back World Golf Championships - Tiger Woods in 2013 (WGC-Mexico Championship and WGC-Bridgestone Invitational). Johnson is on course to do that after his win Mexico earlier this month.
32 - holes won by Jon Rahm this week.
1 - Rahm hasn't trailed since the first hole of his opening match against Kevin Chappell.
2 - This is just the Spaniard's second World Golf Championships appearance. He finished in a share of third in Mexico three weeks ago.
30 - The average Rankings position of the last four is 30th.