Before Tiger perception of golf was that it was a boring, fat, old, white man game. He changed that general perception, boosted tv ratings, tournament attendance, and the popularity of the sport in general. I didn't realize how much was written on this until I started making this thread but there are a lot of articles on what he did for the game.
Jordan was pretty big for basketball. Anytime there's a strong heavyweight they draw attention to boxing. Danica Patrick maybe helped NASCAR. Women's tennis was already popular before Venus and Serena. I'm not saying they don't count. If you have an argument for them or anyone else I'd love to hear it but to me it's definitely Tiger.
Jordan was pretty big for basketball. Anytime there's a strong heavyweight they draw attention to boxing. Danica Patrick maybe helped NASCAR. Women's tennis was already popular before Venus and Serena. I'm not saying they don't count. If you have an argument for them or anyone else I'd love to hear it but to me it's definitely Tiger.