Eccentric Utilisation Ratio The eccentric utilisation ratio (EUR) is simply the ratio between CMJ and SJ performance and provides insight into an athlete’s slow SSC ability. It has been suggested that an ideal EUR is ~1.1, in which the CMJ score should be 1.1x (10 %) that of the SJ (8). For example, if an athlete scores 45 cm on the CMJ and 39 cm on the SJ, they have a EUR of 1.15 (45 divided by 39).