But the new Masters champion has apparently made a few extra dollars beating Dallas Cowboys quarterback Tony Romo on the course.
"Oh man, I don't know. I can't even count that high," Spieth told Jim Rome during an episode of "Rome on Showtime." "He's a good friend and a great competitor, so we have a good time out there."
As football players go, Romo is a good golfer, playing better than scratch and flirting with U.S. Open qualifying in the past. Back injuries have hampered his game in recent years.
"The good news is, he doesn't swallow his pride and take a lot of strokes," Spieth said. "He likes to play, you know, maybe 2 or 3 a side."