 He was ranked fourth in the world that year, behind Jānis Lūsis, Pauli Nevala and Jorma Kinnunen.Murro broke his own American record on March 27, 1970, again in Tempe; with his throw of 300 ft 0 in (91.44 m) he became the first American to reach 300 feet, as well as the first to break 90 meters.However, two months later at the Compton Invitational he slipped while throwing and sprained his ankle, missing the NCAA meet and failing to qualify for the national championship final as a result.