As a pitcher at Miami-Dade College, Joe Arnold was a two time All-American. In 1965 and '66, he finished with a combined record of 29-4, while being named the MVP of the 1966 Junior College World Series. In 2006, he was recognized as a member of the 50th Anniversary NJCAA World Series Team. His record of 30 2/3 innings pitched at the 1966 Junior College World Series still stands.
After Miami-Dade, Arnold played for Arizona State University. In one year he compiled an 11-1 record, giving him a total of 40 wins and 5 losses in three years of collegiate competition.
As the Florida Southern head coach from 1977 to 1983, he led the Moccasins to a 316-69 record for a .821 winning percentage. Arnold's Moccasins teams won Regional titles in six of his seven years and NCAA Division II National Championships in 1978 and 1981. From 1984 to '94 he served as head coach of the Florida Gators and led them to 434 wins and a .640 winning percentage. In addition, his Gator teams appeared in 1988 and '91 College World Series.