- Dumb Luck Wins
- Tough Luck Losses
- Out Prevention Percentage
- Infield Outs Prevented
Below, I’ve listed the league-average OPP for each year since 1950. I’ve also listed the OBP for that year, as a reference. Links in the table go to Baseball-Reference.
MLB Average OPP, by Year
As you can see, OPP is usually about 10-15 points lower than OBP. So if a player has an OPP that is only a few points lower than his OBP, he’s doing better than average at the things OPP measures but OBP does not (especially reaching on errors and not grounding into double plays). Similarly, if a player has an OPP that is 20-some points below his OBP, he is probably hitting into lots of double-plays and not reaching on many errors.
From the all-time low league OPP (.290 in 1968) to the all-time league high OPP (.333 in 2000), there is a 43-point difference. That means hitters in 2000 were, on average, about 15% better at preventing outs than hitters in 1968. If you want proof that the juiced era of the 90′s and 00′s is over, just look at 2010′s OPP, which is 20 points (6%) off the peak. If that trend continues into 2011, we’ll know for sure that something is different now.
This blog is devoted to the invention and use of unusual baseball statistics. These Junk Stats are designed to reveal the not-so-meaningful quirks that make baseball so fascinating.
JunkStats is written by Jacob Peterson, who also writes for the Braves blog Talking ChopBeyond the Boxscore
For more about the site or the author, read the About page
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