What do the numbers next to player names on the first tee of the Masters mean?

WILL RORY ROAR AT BIRKDALE?SOUTHPORT, MERSEYSIDE, ENGLAND – They are, perhaps, the two biggest names...

MACAU, CHINA: John Catlin of the USA celebrates his eagle putt on the 18th green...

The par-5 18th at TPC LouisianaThe 2026 Zurich Classic of New Orleans is played this...

PARIS, FRANCE - SEPTEMBER 17: Brooks Koepka of USA looks on during the pro-am prior...

SHANGHAI, CHINA - APRIL 20: Ashun Wu of China poses for a photo whilst holding...

MENLO PARK, CA - MARCH 21: KNelly Korda of the United States looks on on...

TARZANA, CALIFORNIA - APRIL 18: Hannah Green of Australia reacts to birdie on the third...

BAHRAIN, BAHRAIN - FEBRUARY 01: Freddy Schott of Germany trophy poses with the trophy following...