- Ultimate Value Index
**Ultimate Value Index**, often abbreviated as UVI, is abaseball statistic developed by Scout.com columnist Nathaniel Stoltz that condenses a player's value into one statistic, whether the player is a hitter or a pitcher. The hitting statistic is often compared toThomas Boswell 'stotal average or the more commonly usedslugging percentage , but is slightly more advanced, accounting for bunts and sacrifice flies, and the denominator of UVI is plate appearances instead of outs made. The hitting formula looks like this:(Total Bases + Walks + Times Hit By Pitch + Stolen Bases - Times Caught Stealing + .25(Bunts + Sac Flies) - Times Grounded Into Double Play - .1(Strikeouts))/Plate Appearances [

*http://bleacherreport.com/articles/17934-The-Stat-That-Will-Revolutionize-Baseball-Introducing-UVI-160408 The Stat That Will Revolutionize Baseball: Introducing UVI | Bleacher Report*] ]The pitching formula draws on

Voros McCracken 's DIPS theory and attempts to take the elements of luck out of pitching. It looks like this:(.275(Ground Balls Allowed) + 4*(Homers Allowed) + 1.394*(.3606*Fly Balls Allowed) - Homers Allowed) + Walks Allowed + Batters Hit By Pitch)/Plate Appearances Against

UVI is one of the few baseball statistics that are comparable for a hitter and a pitcher, and it is the only known rate statistic that has this functionality.

UVI does not account for defense for either a hitter or a pitcher, which slightly limits its functionality.

UVI has three "orders;" the first is based on raw statistics, the second adjusts the data for a player's home park, and the third translates minor league statistics to the majors, although the translation system is largely unrefined. UVI currently is not a "projection" system, only translating statistics from past or present seasons, although Stoltz claims that a projection system is currently being tested as of April 2008.

Average UVIs typically lie slightly above average slugging percentages, typically in the .460-.470 range. For hitters, higher is better, and the inverse is true for pitchers.

The highest known single-season batter UVI is Barry Bonds' .897 mark in 2001. [

*[*]*http://bleacherreport.com/articles/17970-Second-Order-Hitting-UVI-A-Few-Facts-and-Examples-160408 Second-Order Hitting UVI: A Few Facts and Examples | Bleacher Report*]**References**

*Wikimedia Foundation.
2010.*