baseball
: a statistic that is expressed as a 3-digit decimal and that indicates the frequency with which a batter reaches base by a hit, a walk, or being hit by a pitch

Note: A batter with an on-base percentage of .350 has reached base 3.5 times for every 10 at bats.

Through Sunday he led the league in on-base percentage (.479) and hits (40) and was second in runs scored (21) and ninth in slugging percentage (.515).—Ivan Maisel
… he understood that on-base percentage was a far better tool to evaluate a hitter than batting average …—Tom Verducci

Examples of on-base percentage in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The 23-year-old has hit 40 home runs while raising his on-base percentage by more than 50 points. — Jayson Stark, New York Times, 15 Sep. 2026 The Padres do lead the major leagues in batting average, on-base percentage and slugging percentage since July 19. — Kevin Acee, San Diego Union-Tribune, 22 Aug. 2026 Their slugging percentage is among the best in baseball, but their on-base percentage is 23rd. — David Troy, FOXNews.com, 30 July 2026 Quietly near the top As of Tuesday, July 7, Hicks ranked among the National League’s top 20 in batting average, RBI and on-base percentage. — Tyler M. Carmona, Miami Herald, 8 July 2026 See All Example Sentences for on-base percentage

Word History

First Known Use

1941, in the meaning defined above

Time Traveler
The first known use of on-base percentage was in 1941

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Cite this Entry

“On-base percentage.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on-base%20percentage. Accessed 25 Sep. 2026.

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