15+ Wins, 7.5+ SO/9, .570 W-L%, 3.25 ERA or less (LHP, Multiple seasons throuby age 26, since 1900)
1975-77 Frank Tanana
2010-11 Gio Gonzalez
1955-56 Herb Score
2004-05 Johan Santana
Gio Gonzalez, who was recently aquired by the Nationals from the A's, is clearly a talented young pitcher. This indicates that he's even more special than I had realized. The Nationals had to give up a lot to get him, but it will be worth it if he keeps producing like he has the last few years. If he had pitched the same on the Rangers or Yankees or Tigers, he might have won 20 games each year.
Which right handed pitchers have had multiple seasons like that before age 26? Roger Clemens, Jim Maloney, Tim Lincecum, Jake Peavy, Pedro Martinez, Dwight Gooden, Tom Seaver, Fergie Jenkins, Denny McLain. If Gonzalez performs like he's capable, the Nationals could be a scary team in 2012.