Mussina

No starting pitcher has ever been elected to the Hall of Fame without winning 20 games at least once. Mike Mussina looked like he might be on his way to being the first, entering this year with a 250-144 won-loss record, a hall-of-fame caliber .635 won-loss percentage. Don't look now, though--at age 39, he just won his 10th game in the 69th game of the season, on course to win 20 at that rate!

He would also be the oldest fist-time 20-game winner, breaking Jamie Moyer's record, who did it at age 38 back in 2001.