Complex sentence: Davis then attended the University of California, Los Angeles on a full scholarship, becoming an All-American and NCAA champion as a member of the 4x400 (3:02.12) relay split 45.2 and also a part of the 4x400 indoor record team.
Split into simpler sentences: Davis then attended the University of California, Los Angeles on a full scholarship while becoming an All-American and NCAA champion. He was a member of the 4x400 (3:02.12) relay split 45.2 and also a part of the 4x400 indoor record team.