Each week, GolfChannel.com takes a look at the players who made moves up - and down - the various ranking systems in the world of golf.
• After his one-shot victory at the PGA Championship, Walker jumped from No. 48 to No. 15 in the world rankings, his highest standing since September.
• Walker also moved from No. 29 to No. 4 in the U.S. Ryder Cup standings, clinching his return to the biennial matches after making his debut in 2014.
• Koepka finished T-4 at Hazeltine, and he jumped from No. 9 to No. 5 in Ryder Cup points. While not a lock, he appears likely to punch his ticket to Minnesota this fall.
• Branden Grace is back in the top 10 in the world, up two spots to No. 10 after a top-5 finish at the PGA for the second straight year.
• Ariya Jutanugarn's victory at the Ricoh Women's British Open moved her up six spots to No. 2 in the Rolex Rankings, supplanting fellow major champion Brooke Henderson.
• A third-place finish earned Daniel Summerhays his first Masters berth and also moved him up 36 spots to No. 53 in the world, his highest career mark.
• After a T-10 finish at Baltusrol, his second straight top-10 finish in a major, England's Tyrrell Hatton is now on the Ryder Cup bubble at No. 9 in European points and No. 14 in world points.
• Padraig Harrington's T-13 finish was his best result in a major since 2012 and also moved the Irishman up 26 spots to No. 124 in the world.
• Following a record-setting win on the Web.com Tour that included a 58, Stephan Jaeger jumped from No. 958 to No. 397 in the world rankings.