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en.wikipedia.org/wiki/Earned_run_average

In baseball statistics, earned run average (ERA) is the mean of earned runs given up by a ... pitchers' defensive errors) are recorded as unearned runs and omitted from ERA calculations. ... Prior to 1900 – and, in fact, for many years afterward – pitchers were routinely expected to pitch a complete game, and their win-loss ...

captaincalculator.com/sports/baseball/era-calculator

Earned Run Average (ERA) is a baseball metric used put a pitcher's number of ... win/loss ratio (primarily because pitchers were expected to pitch a full game).

www.insiderbaseball.com/blog/2010/02/fantistics_blog_2202010_expected_era_xera.html

Feb 20, 2010 ... Expected ERA is a term coined by 2 stat researchers (Gill and Reeve), which developed the following mathematical formula ((.575 * H/9 ) + (.94 ...

www.betfirm.com/pitching-luck-with-fluke-wins-xera-vs-actual-era

Overlooked MLB Stats: xERA vs Actual ERA & Pitching Luck vs Fluke Wins ... That is why I want to take some time to explain two different methods of determining how a starting pitcher will perform on a given start. Expected ERA ( xERA) vs.

www.fangraphs.com/library/pitching/xfip

Expected Fielding Independent Pitching (xFIP) is a regressed version of Fielding Independent .... Better with Less: ERA Estimators – Baseball Prospectus.

www.lootmeister.com/mlb/era.php

how to calculate era, pitcher, record, earned run average, whip, stat, walks, hits ... Depending on the type of era the baseball is taking place, an effective ERA can ... Pitching only one inning, they are expected to have a low earned run average.

www.lootmeister.com/mlb/good-bad-era.php

Examples of what constitues both good and bad earned run average for Major League Baseball pitchers. ... MLB Betting: How to Judge a Pitcher's ERA ... A closer might be expected to have a lower ERA, but for the most part, an ERA of 3.00 is ...

www.baseballhq.com/glossary-c-k

A hitter's batting average as calculated by multiplying the percentage of balls put in play ... "xERA represents the expected ERA of the pitcher based on a normal ...

www.homerunweb.com/era.html

How to Calculate Earned Run Average (ERA) As the basic statistical measure ... So, for example, a pitcher with a 3.50 ERA is expected to allow three and a half ...