During his tenure, he was one of the most successful intercollegiate baseball coaches in the country, producing over 1,000 wins in a 35-year career. Hannah's baseball teams have had many successful seasons including eight straight 30 win seasons from 1976–1983 and five straight 40 win seasons from 1994–1998. Hannah coached many
Major League Baseball players including pitcher Steve Taylor who was a No. 1 draft pick of the New York Yankees in 1977. In 2000, the Delaware Baseball Stadium was renamed
Bob Hannah Stadium in his honor. Hannah was named
America East Coach of the Year five times, a conference record. He was inducted into the
Delaware Sports Hall of Fame in 1998.
The News Journal ranked him fourth on their 2023 list of the "125 Greatest Coaches in Delaware History". ==Death==