Mike is considered one of the finest coaches in the southeast. He formally coached at Lakeside Swim Club in Louisville where he was an assistant from 1969-72 and as head diving coach from 1972-2002. For over 30 years he has coached divers to spots at the National Age-Group and Senior National Championship as well as coaching numerous divers to the Indiana and Kentucky State High School diving championships. He had a part in producing two Olympic divers, including Amy McGrath Watson and Ellen McGrath Owen. Zehnder has also had over 70 divers receive diving scholarships during his coaching tenure. Mike was named 2010 Big East Conference Women's Coach of the Year.
A native of Louisville, Mike is married to the former Jenny Goldberg and has one daughter Kimberly, and two sons, Nicholas and Scott.