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.
Here's a look at this week's Biggest Movers, as a former winner broke out of a slump in a big way and the Olympic rankings see another reshuffle:
- James Hahn won a playoff at the Wells Fargo Championship despite entering off a string of eight straight missed cuts. As a result, he jumped from No. 134 in the world rankings to No. 55, a new career high.
- Hahn's second career win also took him to No. 18 on the U.S. Ryder Cup points list, ahead of the likes of Kevin Na, Jimmy Walker and Ryan Moore.
- Roberto Castro, who lost to Hahn in the playoff at Quail Hollow, moved up 160 spots to No. 122 in the latest world rankings.
- Zach Johnson didn't play last week, and as a result he dropped to No. 7 in the Ryder Cup race - passed by Rickie Fowler and Phil Mickelson, both of whom finished T-4 in Charlotte.
- Mickelson's result, which came after a Sunday 66, helped him jump three spots to No. 17 in the world rankings.
- With Marc Leishman bowing out of Olympic consideration, world No. 66 Marcus Fraser is now in line to receive Australia's second roster spot in Rio.
- Ariya Jutanugarn's maiden LPGA win moved her up 11 spots to No. 21 in the latest Rolex Rankings.
- Amy Yang's runner-up finish, her second in as many weeks, vaulted her over fellow South Koreans Sei Young Kim and In Gee Chun to No. 6 in the world.
- After a missed cut in his hometown event, former U.S. Open champ Webb Simpson dropped to 90th in the world - his lowest ranking since April 2011.