• Michigan ISF Certified Umpires


    • Chris Armijo • Grand Rapids, MI • Slow Pitch • 1995

    • Kenneth Brill • Swartz Creek, MI • Slow Pitch • 1997

    • James Connors • Manchester, MI • Fast Pitch • 2017

    • Ron Costello • Lansing, MI • Slow Pitch • 1992

    • Michael De Leo • Au Gres, MI • Slow Pitch • 1992

    • Gary Evans • Mason, MI • Slow Pitch • 1984

    • Jamie Evans • Holt, MI • Slow Pitch • 1999

    • Jason Gehoski • Midland, MI • Fast Pitch • 2017

    • Ted Germain • Mayville, MI • Modified Pitch • 1991

    • Jerry Hanson • Midland, MI • Fast Pitch • 1979

    • Kevin Haun • Portage, MI • Fast Pitch • 2011

    • Rick Havercroft • Saginaw, MI • Fast Pitch • 1991

    • Kevin Herendeen • Michigan Center, MI • Slow Pitch • 1998

    • Linda Hoover • Marshall, MI • Fast Pitch • 1998

    • Ron Horne • Marysville, MI • Modified Pitch • 1997

    • William L. Humphrey • Midland, MI • Fast Pitch • 1979

    • Senga "Penny" Knupp • Charlotte, MI • Fast Pitch • 1986

    • Michael Maisner • Okemos, MI • Slow Pitch • 1993

    • Randy Melvin • Dowagiac, MI • Slow Pitch • 1998

    • Donald Mosher, Jr. • Midland, MI • Modified Pitch • 1997

    • Donald Newsted • Clinton, MI • Slow Pitch • 1996

    • Paul Piornack • Grand Blanc, MI • Slow Pitch • 1988

    • Kevin Renno • Port Huron, MI • Modified Pitch • 1997

    • Richard Ribby • Easton Rapids, MI • Fast Pitch • 1983

    • Kevin Ryan • Ann Arbor, MI • Fast Pitch • 1991

    • Dave Seldon • Reese, MI • Fast Pitch • 2017

    • Bryan Smith • Lansing, MI • Fast Pitch • 1991

    • Joseph L. Squires • Midland, MI • Fast Pitch • 2003

    • David Swanson • Kalkaska, MI • Slow Pitch • 2017

    • Larry A. Tait • Holly, MI • Fast Pitch • 2011

    • Roger Vargo • Port Huron, MI • Modified Pitch • 1998

    • Ronald Welch • Kalamazoo, MI • Fast Pitch • 1986

    • Jim Wolford • Buchanan, MI • Slow Pitch • 1983