A good-hitting catcher, Giegling played in the Cincinnati Reds farm system for the Plant City Reds in 1990, and the Cedar Rapids Reds in 1991 and 1992. Cedar Rapids won the Midwest League championship in 1992. He also played for the Staunton Braves in the Valley Baseball League in Virginia. This league is known as the Gateway to the Majors. Giegling signed with the Reds in 1990 after graduating from Southern Illinois University at Carbondale. That year, he was named All-Conference on the Saluki baseball team which won the Missouri Valley Conference title, advancing to the NCAA regional playoffs. The team narrowly missed the College World Series after losing two one-run games at the NCAA West Regionals held at Stanford University. Giegling was a catcher for the Salukis from 1986 to 1990. He was a scholar-athlete. He was also a scholar-athlete at St. Mary’s High School where he was named an All-Conference catcher. He played for St. Mary’s from 1983 to 1986, helping the Dragons win a district championship. In 1984 and 1985, Giegling was an outfielder and pitcher for the Johnny Mac-Fenton American Legion team. Fenton won the District 10 championship in 1984. Giegling was selected to the American Legion all-star team in 1985. He played semi-pro ball for the Sauget Wizards under coach Neil Fiala. Giegling was an umpire for the Midwest Umpires Association. He has coached amateur baseball in St. Louis for the past 18 years.