He has been the head baseball coach at Missouri State University since 1983. During those 33 years, he has won 1138 games, ranking him among the top college baseball coaches in the United States. Guttin is currently eleventh in most career victories among active NCAA Division One baseball coaches. He has been a part of the MSU baseball program as a player, assistant coach, and head coach for 38 of the program's 52 years. His 1,138 career wins are the most recorded by any head coach in the history of Missouri State University. In 2003, Guttin led the Missouri State Bears to the NCAA Division One College World Series in Omaha. In 2015, his MSU team won the regional championship. Under Guttin, the Bears have won 61 percent of their games, averaging over 34 victories a year, and racking up nine 40-win seasons. The Bears have finished in the top half of the conference race in all but three of Guttin's 33 seasons. He has been named Conference Coach of the Year ten times. He was the Midwest Region Coach of the Year in 1997 and 2003. During Guttin's tenure at Missouri State, he has coached 114 young men who signed professional contracts, including five first-round draft picks, and fourteen players who advanced to the Major Leagues. In 2015, Guttin was inducted into both the Missouri Sports Hall of Fame, and the Springfield Area Hall of Fame. From 1970 to 1973, Guttin played second base for University City High School. During the 1970s, he was also a second baseman for Truman State University, Mineral Area Junior College, and Southwest Missouri State University which became Missouri State University. He had two notable seasons as the Bears second baseman, earning all-conference honorable mention in 1977 as the Bears made their first NCAA tournament appearance in seven years. In 1975 and 1976, Guttin was a second baseman for Clark Funeral Home in the St. Louis County League. His team won the Missouri NBC championship both years, advancing to the NBC World Series in Wichita.