earned run average
C1Technical
Definition
Meaning
A baseball statistic representing the average number of earned runs a pitcher allows per nine innings pitched.
A key metric in baseball used to evaluate pitching performance by calculating runs that are the pitcher's responsibility, excluding runs scored due to fielding errors.
Linguistics
Semantic Notes
This is a compound noun ('earned-run average'), typically abbreviated as 'ERA'. It is specific to baseball and, by extension, used in other sports contexts with analogous statistics. It is a countable noun.
Dialectal Variation
British vs American Usage
Differences
The term is used identically in both varieties, but its cultural frequency is vastly higher in American English due to baseball's prominence there.
Connotations
In the US: a standard, crucial sports statistic. In the UK: a niche term familiar mainly to baseball enthusiasts.
Frequency
Very common in US sports media and analysis; rare in general UK discourse outside of specific baseball coverage.
Vocabulary
Collocations
Grammar
Valency Patterns
[Pitcher] [has/had] an earned run average of [number].The [team] calculated the [player]'s earned run average.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “He kept his ERA clean.”
- “An ERA under 3.00 is elite.”
Usage
Context Usage
Business
Potentially used metaphorically in performance analytics (e.g., 'project cost overrun average').
Academic
Used in sports science, statistics, or papers analysing baseball performance.
Everyday
Almost exclusively in conversations about baseball or sports statistics.
Technical
Core term in baseball sabermetrics and official scoring.
Examples
By Part of Speech
verb
British English
- The statistician earned-run-averaged the pitcher's performance over the season.
- They are earned-run-averaging the new data.
American English
- We need to ERA the starters from last night's doubleheader.
- He earned-run-averaged a solid 2.89.
adverb
British English
- He pitched earned-run-average brilliantly.
- The team performed earned-run-average poorly.
American English
- He's pitching ERA-well this month.
- They are performing ERA-wise at a historic level.
adjective
British English
- The earned-run-average statistic is paramount.
- An earned-run-average analysis.
American English
- His ERA stats are impressive.
- Look at the ERA leaderboard.
Examples
By CEFR Level
- His earned run average is low.
- What is an earned run average?
- The pitcher has a good earned run average this season.
- A lower earned run average is better for a pitcher.
- Despite a high earned run average early in the year, he finished the season strongly.
- Analysts praised her ability to maintain an earned run average below three in a hitter-friendly ballpark.
- His microscopic earned run average of 1.89 over 200 innings cemented his Cy Young Award candidacy.
- Sabermetricians often adjust the traditional earned run average to account for ballpark factors and defensive efficiency.
Learning
Memory Aids
Mnemonic
ERA: Earned Runs Average. Remember it's the pitcher's E.R. (Emergency Room) – how many runs they give up before getting 'help' (relief).
Conceptual Metaphor
PITCHING PERFORMANCE IS A NUMERICAL RATING (A lower number indicates higher skill and control).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid a direct word-for-word translation like 'заработанный средний пробег'. The correct conceptual translation is 'пропускаемость' or the borrowed 'ERA' (И-ЭР-ЭЙ).
Common Mistakes
- Using 'earned run average' for batters (it's for pitchers).
- Confusing 'earned runs' with total 'runs'.
- Incorrect pluralization ('earned runs averages').
Practice
Quiz
What does a lower Earned Run Average (ERA) indicate?
FAQ
Frequently Asked Questions
An 'earned run' is a run scored without the benefit of a fielding error or a passed ball, meaning it is deemed the direct responsibility of the pitcher. All runs are either earned or unearned.
A standard baseball game consists of nine innings for each team. Using nine innings as the denominator standardises the statistic, allowing for comparison between pitchers regardless of how many innings they actually pitched in a given game or season.
Yes, generally. A lower ERA signifies that a pitcher prevents opposing teams from scoring runs more effectively. An ERA below 4.00 is typically considered good in modern baseball, and below 3.00 is often elite.
While the term is specific to baseball, the concept of a runs-conceded-per-over average is used in cricket (Economy Rate). The terminology 'ERA' itself is not directly transferred, but analogous performance metrics exist.