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In baseball statistics, NERD (a wink towards the mnemonic "Narration, Exposition, Reflection, Description") is a quantitative measure of expected aesthetic value. NERD was originally created by Carson Cistulli^[1] and is part of his project of exploring the "art" of sabermetric research.^[2] The original NERD formula only took into account the pitcher's expected performance^[1] while the current model factors in the entire team's performance.^[3]^[4]

History

The premise for NERD was developed in Cistulli's piece "Why We Watch" in which he establishes the five reasons that baseball continues to captivate the American imagination from game to game: "Pitching Matchups," "Statistically Notable (or Otherwise Compelling) Players," "Rookies (and Debuts)," "Seasonal Context," and "Quality of Broadcast".^[5] Fellow sabermatrician Rob Neyer, who had collaborated with Cistulli on this piece,^[6]^[7] wrote "the only thing missing [...] is a points system that would let us put a number on each game"^[6] and on June 2, 2010 Cistulli unveiled the NERD Pitching formula.^[1]

NERD pitching

NERD pitching tries to determine which pitchers will be the most aesthetically appealing to watch for a baseball fan and is both a historical and a predictive statistic.^[8] The NERD pitching formula uses a player's standard deviations from the mean (a weighted z-score^[9]) of the DIPS statistic xFIP (expected Fielding Independent Pitching), swinging strike percentage, overall strike percentage, and the differential between the pitcher's ERA and xFIP to determine a quantitative value for each pitcher.^[1]^[10]

$p NERD = (x FIP z \times 2) + (SwStrk % z / 2) + (Strike % z / 2) + LUCK + 4.69$

The factor of 4.69 is added to make the number fit on a 0 to 10 scale. While there has been some disagreement on the calculation of Cistulli's luck component,^[11] the general consensus among sports writers seems to be that a player with a below-average ERA and an above-average xFIP has been "unlucky".^[12]^[13]^[14]

Team NERD

Following the model of his Pitching NERD, Team NERD tries to give a quantitative value to the aesthetic value of each of the 30 baseball teams. For factors it accounts for "Age," "Park-Adjusted weighted Runs Above Average (wRAA)," "Park-Adjusted Home Run per Fly Ball (HR/FB)," "Team Speed," "Bullpen Strength," "Team Defense," "Luck" (Base Runs – Actual Runs Scored), and "Payroll".^[3]

$AGE z \times 2 + BAT z + HR / FB z + (SBA z + SBR z + XBT z) \times . 33 + BL z + UZR z + PAY z + LUCK$

In a recent interview Cistulli admitted that there is a disconnect between The Rays high tNERD rating and low attendance saying that he is considered adding a "park-adjustment" to his formula which would reflect either the stadium itself or "attendance relative to the stadium's capacity"^[15] but overall reception of this statistic has been positive^[16]^[17] and Fangraphs started reporting Team NERD in Cistulli's One Night Only columns beginning August 23, 2010.^[18]

References

43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro.

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+In [[baseball statistics]], '''NERD''' (a wink towards the [[mnemonic]] "Narration, Exposition, Reflection, Description") is a quantitative measure of expected aesthetic value. NERD was originally created by [[Carson Cistulli]]<ref name="introducing">{{cite web|url=http://www.fangraphs.com/blogs/index.php/introducing-nerd/|title=Introducing NERD|accessdate=2010-11-30|publisher=Fangraphs.com}}</ref> and is part of his project of exploring the "art" of [[sabermetrics|sabermetric research]].<ref>{{cite web|url=http://www.fangraphs.com/blogs/index.php/the-long-hello-some-notes-on-luck/|title=The Long Hello: Some Notes on Luck|accessdate=2010-11-30|publisher=Fangraphs.com}}</ref> The original NERD formula only took into account the [[pitcher]]'s expected performance<ref name="introducing" /> while the current model factors in the entire team's performance.<ref name="team">{{cite web|url=http://www.fangraphs.com/blogs/index.php/introducing-team-nerd/|title=Introducing Team NERD|accessdate=2010-11-30|publisher=Fangraphs.com}}</ref><ref>{{cite web|url=http://blogs.thescore.com/djf/2012/08/17/alright-its-the-getting-blanked-podcast-episode-64/|title=Getting Blanked Podcast Episode 64|accessdate=2012-11-15|publisher=thescore.com}}</ref>
+==History==
+The premise for NERD was developed in Cistulli's piece "Why We Watch" in which he establishes the five reasons that baseball continues to captivate the American imagination from game to game: "Pitching Matchups," "Statistically Notable (or Otherwise Compelling) Players," "Rookies (and Debuts)," "Seasonal Context," and "Quality of Broadcast".<ref>{{cite web|url=http://www.fangraphs.com/blogs/index.php/why-we-watch/|title=Why We Watch|accessdate=2010-11-30|publisher=Fangraphs.com}}</ref>  Fellow sabermatrician [[Rob Neyer]], who had collaborated with Cistulli on this piece,<ref name=throneberries>{{cite web|url=http://espn.go.com/blog/sweetspot/post/_/id/3751/thursday-throneberries-9|title=Thursday Throneberries|accessdate=2010-11-30|publisher=Espn.com}}</ref><ref>{{cite web|url=http://metsminorsreview.libsyn.com/mets-minors-review-volume-16|title=Mets Minors Review Episode 16|accessdate=2012-11-15|publisher=Mets Minors Review}}</ref> wrote "the only thing missing [...] is a points system that would let us put a number on each game"<ref name=throneberries /> and on June 2, 2010 Cistulli unveiled the NERD Pitching formula.<ref name="introducing" />
+==NERD pitching==
+NERD pitching tries to determine which pitchers will be the most aesthetically appealing to watch for a baseball fan and is both a historical and a predictive statistic.<ref>{{cite web|url=http://www.fangraphs.com/blogs/index.php/one-night-only-now-with-more-nerd/|title=One Night Only Now with More NERD|accessdate=2010-11-30|publisher=Fangraphs.com}}</ref> The NERD pitching formula uses a player's standard deviations from the mean (a weighted z-score<ref>{{cite web|url=http://www.ussmariner.com/2010/06/23/a-post-in-five-parts/|title=A post in Five Parts|accessdate=2011-02-16|publisher=USS Mariner}}</ref>) of the [[Defense independent pitching statistics|DIPS]] statistic xFIP (expected Fielding Independent Pitching), swinging strike percentage, overall strike percentage, and the differential between the pitcher's [[Earned run average|ERA]] and xFIP to determine a quantitative value for each pitcher.<ref name="introducing" /><ref>{{cite web|url=http://www.fangraphs.com/blogs/index.php/strasburg-breaks-nerd/|title=Strasburg Breaks NERD|accessdate=2010-11-30|publisher=Fangraphs.com}}</ref>
+<math>p\text{NERD} = (x \text{FIP}z \times 2) + (\text{SwStrk}%z/2) + (\text{Strike}%z / 2) + \text{LUCK} + 4.69</math>
+The factor of 4.69 is added to make the number fit on a 0 to 10 scale.  While there has been some disagreement on the calculation of Cistulli's luck component,<ref>{{cite web|url=http://www.hardballtimes.com/main/blog_article/why-you-cant-subtract-fip-from-era/|title=Why You Can't Subtract FIP from ERA|accessdate=2010-11-30|publisher=The Hardball Times}}</ref> the general consensus among sports writers seems to be that a player with a below-average ERA and an above-average xFIP has been "unlucky".<ref>{{cite web|url=http://www.ghostrunneronfirst.com/2010/06/getting-nerdy-with-jays-starters.html|title=Getting nerdy|accessdate=2010-11-30|publisher=Ghost Runner on First}}</ref><ref>{{cite web|url=http://itsaboutthemoney.net/archives/2010/09/12/joba-and-fip/|title=Joba and FIP|accessdate=2010-11-30|publisher=It's About the Money}}</ref><ref>{{cite web|url=
+http://sports.espn.go.com/espn/page2/story?page=simmons/100402|title=Finally on board the sabermetrics revolution|accessdate=2010-11-30|publisher=Espn.com}}</ref>
+==Team NERD==
+Following the model of his Pitching NERD, Team NERD tries to give a quantitative value to the aesthetic value of each of the 30 baseball teams.  For factors it accounts for "Age," "Park-Adjusted weighted Runs Above Average (wRAA)," "Park-Adjusted Home Run per Fly Ball (HR/FB)," "Team Speed," "Bullpen Strength," "Team Defense," "Luck" (Base Runs – Actual Runs Scored), and "Payroll".<ref name="team" />
+<math> \text{AGE}z \times 2 + \text{BAT}z + \text{HR}/\text{FB}z + (\text{SBA}z + \text{SBR}z + \text{XBT}z)\times .33 + \text{BL}z + \text{UZR}z + \text{PAY}z + \text{LUCK}</math>
+In a recent interview Cistulli admitted that there is a disconnect between [[Tampa Bay Rays|The Rays]] high tNERD rating and low attendance saying that he is considered adding a "park-adjustment" to his formula which would reflect either the stadium itself or "attendance relative to the stadium's capacity"<ref>{{cite web|url=
+http://www.draysbay.com/2010/11/10/1804861/a-q-a-with-carson-cistulli|title=A Q&A with Carson Cistulli|accessdate=2010-11-30|publisher=Draysbay.com}}</ref> but overall reception of this statistic has been positive<ref>{{cite web|url=
+http://espn.go.com/sportsnation/chat/_/id/34253/mlb-insider-rob-neyer|title=Chat with Rob Neyer|accessdate=2010-11-30|publisher=Espn.com}}</ref><ref>{{cite web|url=
+http://jfwiii.net/2010/08/23/baseruns-spreadsheet-and-team-nerd/|title=Baseruns Spreadsheets and team NERD|accessdate=2010-11-30|publisher=Jfwiii.net}}</ref> and [[Fangraphs]] started reporting Team NERD in Cistulli's One Night Only columns beginning August 23, 2010.<ref>{{cite web|url=http://www.fangraphs.com/blogs/index.php/one-night-only-now-with-team-nerd/|title=One Night Only: Now with Team NERD|accessdate=2010-11-30|publisher=Fangraphs.com}}</ref>
+==References==
+{{reflist|2}}
+{{Baseball statistics}}
+[[Category:Baseball statistics]]
+[[Category:Baseball terminology]]