Greg Norman first claimed the top spot in the OWGR in 1986. (Luke Franke/Naples Daily News via USA TODAY)

2. Greg Norman, 331 Weeks

Norman became just the third player, after Bernhard Langer and Seve Ballesteros, to be ranked No. 1 in the world when he earned that distinction on Sept. 14, 1986. Nearly 32 years later, he appeared in the 2018 ESPN Body Issue. Norman won 91 times overall, including 20 times on the PGA Tour. He also won the Open Championship in 1986 and 1993.