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Football Power Index (abbreviated as FPI) is a predictive rating system developed by ESPN that measures team strength and uses it to forecast game and season results in American football. Each team's FPI rating is composed of predictive offensive, defensive, and special teams value, as measured by a function of expected points added (EPA).
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Rankings, or power rankings, can be directly provided (e.g., by asking people to rank teams), or can be derived by sorting each team's ratings and assigning an ordinal rank to each team, so that the highest rated team earns the #1 rank. Rating systems provide an alternative to traditional sports standings which are based on win–loss–tie ratios.
The oldest of the rating systems, the National Sports News Service, was begun by Arthur H. "Art" Johlfs—who originally started naming champions informally in 1927 as a 21 year old high school coach and official, [2] but did so more formally starting in 1959 [3] after enlarging his network of supporting hobbyists [2] to receive reports from six separate areas of the country. [4]
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A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
The Premo-Porretta Power Poll is a retroactive end-of-year ranking for American college basketball teams competing in the 1895–96 through the 1947–48 seasons. [1]The Premo-Porretta Polls are intended to serve collectively as a source of information regarding the relative standings of college basketball teams within given seasons during the early decades of the sport.
It is of sufficiently high resolution to allow quality print reproduction. Still images should be a minimum of 1500 pixels in width and height (1500×1500px); larger sizes are generally preferred. The size of animated images is judged less strictly, though larger is still preferred. Further information on image size can be found here.