Tiger Woods

American professional golfer who dominated the sport from 1997-2008, won 15 major championships, and is widely considered the greatest golfer of all time — whose career arc (dominance, scandal, injuries, comeback) became one of the defining sports narratives of the era.

Tiger's effect on golf: Woods transformed professional golf — a sport largely ignored by non-white audiences — into a global television event. His TV ratings were 40-50% higher than tournaments he didn't play in; sponsors changed terms based on his participation; equipment companies retooled around his specifications. His 2008 US Open win (with a torn ACL, playing on one leg) and 2019 Masters comeback (after four back surgeries, a DUI, and career-threatening injuries) are the sport's defining moments. His swing mechanics and physical training approach permanently changed how golf is taught and practiced.