Below you’ll find links to a variety of leaderboards for Out Prevention Percentage (OPP). All the raw data for these leaderboards comes from Baseball-Reference.com

, though I compiled all the tables and performed the calculations myself. The links within the tables go to Baseball-Reference.

All leaderboards go back to 1950, since B-Ref’s reached on error and catcher’s interference data only goes back that far.

Individual Player Leaderboards

• Career Leaders (6000 PA minimum): Highest OPP
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  | Highest OPP+
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  (OPP relative to league average)
• Single-Season Leaders (among batting-title qualifiers): Highest OPP
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  | Highest OPP+
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• Full Leaderboard for OPP/OPP+ by Season: 2010
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• Highest OPPs by Season: 2006-2009
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  | more coming eventually

Team Leaderboards

• Single-Season Leaders: Highest OPP by a Team
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Leaguewide Data

• OPP for All MLB: By Season
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Any ideas for other leaderboards? Leave them in the comments.

If you are curious about a player or team’s OPP, you can find all the information you need on B-Ref. You can find PA, H, BB, HBP, and GDP on the player’s (or team’s) main batting statistics page. ROE and XI can be found under the section labeled “Baserunning/Misc.” Here’s the simple formula for calculating OPP:

OPP = (H + BB + HBP + ROE + XI – GDP) / PA

H = hits
BB = walks
HBP = times hit by pitch
ROE = times reached on error
XI = catcher’s interference (for most players, this will be 0)
GDP = times grounded into double plays
PA = plate appearances

OPP values vary from year to year, but in 2010, .313 was league average. The OPPs of qualified batters ranged from .248 (Jose Lopez) to .414 (Joey Votto).