Original sentence: He graduated in 1961 from Seattle's Shoreline High School, he won the 1963 NCAA pole vault title and broke the world record in the event on three occasions.He set the last of his records on May 25, 1963, in Modesto, California jumping 16 feet, 7 inches using a new technology fiberglass pole
Edited sentence: He graduated in 1961 from Seattle's Shoreline High School, he won the 1963 NCAA pole vault title and broke the world record in the event twice.He set one of his records on May 25, 1963, in Modesto, California jumping 16 feet, 7 inches using a new technology fiberglass pole.His final record of 5.08 m was set on June 7, 1963