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It stands for "nasty factor" - on MLB.COM anyway.

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βˆ™ 2011-05-08 23:05:55
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Q: What does NF mean in baseball pitchers stats?
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What does NF stand for in baseball?

NF = Nasty Factor. What is the Nasty Factor? The Nasty Factor evaluates several properties of each pitch, and rates the "nastiness" of the pitch on a scale from 0-100, based in part on the success or failure of opposing hitters against previous similar pitches. The Nasty Factor incorporates several different factors for each pitch, including: Velocity - The greater the pitch's velocity - as compared to that pitcher's and the league's range of speed for that pitch type - the greater the nastiness; Sequence - The more the pitcher mixes up his pitches, the greater the nastiness… and certain pitch sequences are nastier than others, too; Location - The closer to the edges of the strike zone is, the greater the nastiness, while pitches closer to the middle of the plate, and farther away outside the strike zone, decrease in nastiness; Movement - The more movement the pitcher applies to the pitch - as compared to that pitcher's and the league's range of movement for that pitch type - the greater the nastiness. The Nasty Factor also adjusts for how often the pitcher has faced the current batter during the game, as well as how often he has used the same pitch type against the same batter in the current at-bat and previously in the game.


What are some of the most sports played in Greenland?

Association football (soccer) is the national sport of Greenland. The nation is not yet a member of FIFA because it cannot grow grass for regulation grass pitches. It is a member of the NF Board. In January 2007, Greenland took part in the World Men's Handball Championship in Germany, finishing 22nd in a field of 24 national teams. Greenland competes in the biennial Island Games, as well as the biennial Arctic Winter Games.


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