As I’m sure you have probably heard by now, Dallas Braden of the Oakland Athletics threw the 19th perfect game in Major League Baseball history. Up until Sunday, Braden’s claim to fame was nearly getting into a fight with A-Rod over some prime real estate in the center of the diamond. As of today, Braden’s W/L is 18-23, his WHIP is 1.374 and he gives up nearly 10 hits per nine innings on average – far from mind blowing stats. So the question I researched is whether throwing a perfect game is really more likely for what are generally regarded as “good pitchers” people like Roy Halladay, Cole Hamels, and Tim Lincecum or if it is just as likely that an average pitcher could toss his way into the history books by obtaining perfection.
First we need to take a look at the stats of pitchers who have thrown perfect games. More specifically, let’s just takes a look at the last 10 who have thrown perfect games. Now granted, I am still fairly young (25) and haven’t amassed the baseball knowledge that many others have, but this brings up a lot of question marks, mainly the “Who are you?” kind of question marks.
| Pitcher’s Career Stats | Whip | H/9 | BB/9 | W | L |
| Len Barker | 1.361 | 8.8 | 3.5 | 74 | 76 |
| Mike Witt | 1.318 | 8.8 | 3 | 117 | 116 |
| Tom Browning | 1.271 | 9 | 2.4 | 123 | 90 |
| Dennis Martínez | 1.266 | 8.8 | 2.6 | 245 | 193 |
| Kenny Rogers | 1.403 | 9.4 | 3.2 | 219 | 156 |
| David Wells | 1.266 | 9.5 | 1.9 | 239 | 157 |
| David Cone | 1.256 | 7.8 | 3.5 | 194 | 126 |
| Randy Johnson | 1.171 | 7.3 | 3.3 | 303 | 166 |
| Mark Buehrle | 1.27 | 9.4 | 2.1 | 137 | 101 |
| Dallas Braden | 1.374 | 9.6 | 2.8 | 18 | 23 |
| Totals | 1.2956 | 8.84 | 2.83 | 166.9 | 120.4 |
From the list above, I see one, maybe two legitimate Hall Of Famer’s amongst a sea of no names. But what really jumps out to me is that only two pitchers on this list gave up less than 1 hit per inning during their careers (Randy Johnson & David Cone). The stats above (which were taken from www.baseball-reference.com) seem to indicate that tossing a perfect game is more about luck than actual talent. The numbers that follow will further prove this point.
Now that we’ve seen how the last 10 perfect game pitchers fared compared to each other, lets see how they compared to the league averages from 2009.
| League Pitching Averages | Whip | H/9 | BB/9 |
| AL League Average 2009 | 1.403 | 9.2 | 3.4 |
| NL League Average 2009 | 1.378 | 8.9 | 3.5 |
| MLB Average 2009 | 1.39 | 9 | 3.5 |
The numbers are very similar, although statistically, there is a measurable distance. It would appear that the only thing that the last 10 perfect game winners were better at than the rest of the league was finding the strike zone. Perfect game pitchers gave up about 0.7 fewer walks per nine innings than the league average compared with just 0.16 hits per game fewer. The overall WHIP for perfect game pitchers was barely 0.1 lower than the league average. Individually, the average WHIP of a perfect game pitcher would have put them outside of the top 40 pitchers of 2009 for that category.
That logic tells you that based on WHIP alone, there were 40 pitchers in 2009 who had a better chance of throwing a perfect game than the 10 pitchers who actually accomplished that feat in the last 30 years.
Not wanting to take anything away from those who have thrown a perfect game, but not a single one of these feats was performed via 27 strikeouts. They all required a little bit of defense, a stiff breeze to keep some balls in the park, and just a little bit of finger crossing luck as Mark Buehrle is all too familiar with.
Other Articles of Interest
- I Stand By It – Roy Halladay’s Perfect Game Update Throwing a perfect game still depends on too many external factors, no matter how great...
- Instant Replay in Baseball Would Not Have Saved this Perfect Game Yeah, that’s right, you heard me correctly. Instant replay would not have saved Armando Galarraga’s...
- 2010 College World Series Prediction – A Statistical Approach Baseball is a game of numbers. There are unofficial stats for literally any split you...




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May 21st, 2010 on 3:43 pm
[...] of my blogging buddies did a pretty good analysis on the effects of a “perfect game” in Major League Baseball translating to long-term success and/or if it is an indication of the quality of [...]
June 2nd, 2010 on 4:04 am
[...] Wikipedia states that average OBP in the recent decade is roughly .340, and I found states that the league-average WHIP for all pitchers in 2009 was 1.39, so I decided to try both numbers. The best estimate of p is using the WHIP and HBP data from all [...]
June 2nd, 2010 on 3:26 pm
[...] MLB You, the readers begged for it. I got hundreds of emails in response to my post about Dallas Braden’s Perfect Game and how I believed that attaining baseball immortality was all “luck.” You demanded that I take [...]