Show me a pitcher who wins games at a two to one ratio, and I’ll show you a guy I want at the front of my rotation. That, along with a low ERA and a high strikeout to walk ratio, are good indicators of excellence in pitching. It also helps if you have a guy who isn’t afraid to brush a hitter off the plate, like, ahem, the first guy on this list of all-time Top 10 in winning percentage for active pitchers…..

1. Pedro Martinez, New York Mets (.689)—Like I said, Pedro isn’t afraid to throw inside. He also is one of the baddest badasses ever to take the mound, and for about a decade he had the nastiest stuff in the game. In 1999, his best season, Pedro went 23-4 for Boston, with a 2.07 ERA (in the American League!) and 313 strikeouts. That’s just sick.

2. Johan Santana, New York Mets (.673)—Santana does not have overpowering stuff, but he throws all of his pitches for strikes and just knows how to get hitters out. His percentage would be even higher if it weren’t for the Mets bullpen blowing five or six games for him this season.

3. Roy Halladay, Toronto Blue Jays (.665)—With 127 wins against 64 losses for a mostly mediocre Toronto team, you could say Roy Halladay is awesome and you’d be telling the truth.

4. Roy Oswalt, Houston Astros (.663)—Oswalt has 124 wins in less than eight seasons. I say this guy is one of the few young pitchers who have a shot to win 300.

5. Cliff Lee, Cleveland Indians (.658)—Everyone wants to know where Cliff Lee came from, but did go 18-5 in 2005. Still, at 19-2 on a team that has 65 wins, that’s almost 30% of his team’s wins. Let’s hope the Tribe can hold on to Mr. Lee.

6. Tim Hudson, Atlanta Braves (.655)—When he’s not battling injury, Tim Hudson is a pretty dominant pitcher. I know I always cringe when he faces my Mets.

7. Randy Johnson, Arizona Diamondbacks (.649)—When you strike out 4,764 batters over your career, you’re going to win many more games than you lose. The Big Unit is 294-159, and is inching closer to that magic number of 300.

8. Mike Mussina, New York Yankees (.638)—He won a lot of games in Baltimore and he’s won a lot in New York. This guy doesn’t blow hitters away, but he has great stuff and a nose for winning.

9. Andy Pettite, New York Yankees (.635)—When you’re always in the 15-20 win range, you’re going to wind up on this list. Andy Petitte has been winning since he broke into the league in 1995.

10. Mark Mulder, St. Louis Cardinals (.632)—Wait, this guy is still pitching? Sadly, he only lasted 1.7 innings this season and may be done for his career, but Mulder’s 103-60 record is still pretty impressive.

Source: Baseball Reference