Grand Slam U.S.A. offers 17 instructors. Our lead instructor is Jim Hallman. Jim has an extensive background working with little league,
high school, college and professional players. He has 20 years experience as an instructor. Jim has worked camps, clinics, and individual
lessons throughout the country. He also brings 10 years of experience as a college baseball coach and 5 years as a professional scout. As
owner and lead instructor of Grand Slam U.S.A. for the past 13 years Jim has averaged 55 hours of lessons per week each year.
All Grand Slam U.S.A. instructors have a minimum of 4 years college playing experience, and/or coaching experience, a year of instructional
training in Grand Slam U.S.A., experience working with small groups and teams, continuing education throughout the year working camps
around the country, going to sports conventions and working with local High School teams during the summer.
At Grand Slam U.S.A., we believe that it’s not what you’ve done, but how well you evaluate and communicate that will help a player
improve their skills. Our ultimate goal is to help them get to the next level.
high school, college and professional players. He has 20 years experience as an instructor. Jim has worked camps, clinics, and individual
lessons throughout the country. He also brings 10 years of experience as a college baseball coach and 5 years as a professional scout. As
owner and lead instructor of Grand Slam U.S.A. for the past 13 years Jim has averaged 55 hours of lessons per week each year.
All Grand Slam U.S.A. instructors have a minimum of 4 years college playing experience, and/or coaching experience, a year of instructional
training in Grand Slam U.S.A., experience working with small groups and teams, continuing education throughout the year working camps
around the country, going to sports conventions and working with local High School teams during the summer.
At Grand Slam U.S.A., we believe that it’s not what you’ve done, but how well you evaluate and communicate that will help a player
improve their skills. Our ultimate goal is to help them get to the next level.
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| Instructors |
Jim Barclay
Jim has been at Grand Slam for four years. He attended and played baseball at Starmont High School. He was a four year starter at Central College. He has
coached the Grand Slam Fall League for three years.
Jim has been at Grand Slam for four years. He attended and played baseball at Starmont High School. He was a four year starter at Central College. He has
coached the Grand Slam Fall League for three years.
Missey Allen
Missey has been an instructor at Grand Slam for ten years. She attended and played softball at Dowling Catholic High School, and went on to play at Central
College. She has coached high school softball for ten years, was a junior high coach for five years, and a pitching coach at Dowling for two years.
Missey has been an instructor at Grand Slam for ten years. She attended and played softball at Dowling Catholic High School, and went on to play at Central
College. She has coached high school softball for ten years, was a junior high coach for five years, and a pitching coach at Dowling for two years.
Spencer Black
Spencer has been an instructor at Grand Slam for four years. He played baseball at Urbandale High School, and then at K-State and the University of
Northern Iowa. He has coached fall leagues and multiple camps. Spencer is a good pitching instructor.
Spencer has been an instructor at Grand Slam for four years. He played baseball at Urbandale High School, and then at K-State and the University of
Northern Iowa. He has coached fall leagues and multiple camps. Spencer is a good pitching instructor.
Garrett Hawkins
Garrett has been at Grand Slam for five years. He played four years at Valley High School and then two years at Grandview College. In 2006 he was the
head freshman coach at Hoover High School. He is currently the assistant varsity coach at Dowling Catholic High School. He also is a student assistant for
the Grand View College baseball team.
Garrett has been at Grand Slam for five years. He played four years at Valley High School and then two years at Grandview College. In 2006 he was the
head freshman coach at Hoover High School. He is currently the assistant varsity coach at Dowling Catholic High School. He also is a student assistant for
the Grand View College baseball team.
Cristen Clark
Cristen is a Prairie City native in her eighth year as a pitching instructor and first year at Grand Slam. She attended and played softball at Dowling Catholic
High School, and went on to play at Drake University. She currently resides in Runnells, Iowa with her husband Mike and daughter Halle.
Cristen is a Prairie City native in her eighth year as a pitching instructor and first year at Grand Slam. She attended and played softball at Dowling Catholic
High School, and went on to play at Drake University. She currently resides in Runnells, Iowa with her husband Mike and daughter Halle.
Mike Donohoe
Mike has been at Grand Slam for four years. He was a 5 year starter at Norwalk High School, attended Iowa Central Community College , then finished
his college/baseball career at Wayne State College in Wayne Nebraska. He coached in the Grand Slam Fall League the last 2 years and enjoys coaching
camps and clinics.
Mike has been at Grand Slam for four years. He was a 5 year starter at Norwalk High School, attended Iowa Central Community College , then finished
his college/baseball career at Wayne State College in Wayne Nebraska. He coached in the Grand Slam Fall League the last 2 years and enjoys coaching
camps and clinics.
Todd Boggess
Todd has been an instructor at Grand Slam for over a year. Todd played high school baseball at Cedar Falls High School and then went on to play for
Rick Mathews at Indian Hills Community College in Centerville, Iowa. Todd currently coaches the Grand Slam USA 14U USSSA baseball team, is a
volunteer varsity assistant at Dowling High School and is an associate scout for the San Diego Padres.
Todd has been an instructor at Grand Slam for over a year. Todd played high school baseball at Cedar Falls High School and then went on to play for
Rick Mathews at Indian Hills Community College in Centerville, Iowa. Todd currently coaches the Grand Slam USA 14U USSSA baseball team, is a
volunteer varsity assistant at Dowling High School and is an associate scout for the San Diego Padres.