Hall of Fame
Mullin dedicated 35 years to Missouri S&T Athletics, serving as head swimming coach from 1985-98 while also leading the department as Director of Athletics for the final 28 years of his tenure (1992–2020).
As athletic director, the Miners won 14 conference championships, 10 regular-season or divisional titles, and advanced 71 teams to NCAA Division II Championship competition. During that time, 193 student-athletes and 97 relay teams earned All-America honors, while 101 student-athletes received Academic All-America recognition, and numerous teams earned Great Lakes Valley Conference (GLVC) academic awards.
Mullin also guided Missouri S&T into the GLVC in 2005, oversaw the hosting of two NCAA championship events and multiple conference championships, and spearheaded major facility improvements, including renovations to Allgood-Bailey Stadium and Gibson Arena.
As head swimming coach, Mullin compiled a 96-27 dual meet record in 13 seasons, won seven regional championships, and led the Miners to a third-place finish at the 1998 NCAA Division II Championships, the highest NCAA team finish in school history at the time.