SPARQ is a formula developed by Nike which measures player athleticism by outputting a single composite score.
Davis Hsu and Danny Kelly started studying SPARQ over at FieldGulls.com after they were made aware of Seattle Seahawks Head Coach Pete Carroll’s involvement in the metric’s development. Seattle General Manager John Schneider also often referred to certain players as “good testers,” as with Christine Michael and Luke Willson in interviews conducted after the 2013 draft.
Soon after that draft, Nike pulled the SPARQ Calculator page off of its site. To aid in continuing the study, I back-calculated a reasonable approximation of the metric, coming up with what I now call pSPARQ. You can find the documentation for this in the series I wrote leading up to the 2014 draft. All links are to my work at the excellent FieldGulls.com.