High School Fall League

2015 Fall League and Skills Clinics

Attention Customers:


The time of year is here to sign up for our 18th Annual High School Fall Baseball League. Grand Slam USA is organizing its 17th annual Fall Baseball League along with our high school fall skills clinics. The league is for 9th through 12th graders who have a sincere desire to improve their baseball skills. Games will start August 16th, 2015. We will be playing one nine-inning game for eight consecutive Sundays. The eighth week of league play will be the first round of the tournament. Four teams will advance to play on October 11th. Grand Slam USA is also offering high school skills clinics. These clinics will consist of infield/outfield, pitching/catching, and hitting. These clinics are for serious players who are interested in improving and developing their skills.


Please see the attached form (above and below) for more info.  To register print off the form, email/fax to Grand Slam, or you can call Grand Slam at 515-278-1070.


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Indoor Baseball and Softball Training Facility

is located in Urbandale and is central Iowa’s most experienced indoor training facility for baseball, softballand strength and conditioning. Grand Slam U.S.A. has been serving Des Moines and the surrounding areas for over 15 years. A number of players that we have helped develop over the years have earned high awards including: All-State andAll-American honors. Some have even earned professional contracts. Grand Slam U.S.A.’s coaching staff has over 20 years experience working with kids in private lessons, small groups and camps. We pride ourselves in offering the highest quality instructors, equipment, and facility to meet anyone’s needs, regardless of what level they are trying to reach.

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July 15th Lesson Sign ups

July 15th starting at 7:30AM, you can begin to sign up for September-December Lessons.  You can schedule lessons by using our scheduling software, calling the front desk, or emailing us your preferred schedule with your favorite instructor. You can find the link to our software at the top of the home page of our website.  Follow the on screen instructions to begin the process.

If you have any questions, please call Grand Slam USA at 515-278-1070, and our email address is jhallman@grandslamusadm.com.

Next sign-up date is November 1st for the January-April 2016 lesson times.

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Softball Clinics

We are now offering Buddy Clinics! These clinics are designed for you and a buddy to learn fundamentals, improve skills and learn the most advance techniques in Softball Hitting in an individualized environment. Below are the registration forms. You can also sign up by calling 278-1070.

Softball hitting Buddy Clinic 2015


We are offering Softball Hitting and Slappers Clinics! They will be grouped by age (7-10) (11-13) (14-18) for the Hitting Clinics. The Hitting Clinics are 6 weeks. The Slappers Clinics are 4 weeks and are for ages (10-18). Our programs are limited to 6 players per group and will incorporate the advantages of training in a “state-of-the-art” facility and learning the most advanced techniques involved in hitting. The Development Program offers players the opportunity to maximize their potential  leading up to their first day of practice. Don’t wait for the season to begin, start working NOW!!! To sign up click on the link below.

Slappers Clinic

Softball Hitting 2015

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2015 Clinics

Buddy Clinics are now available! These clinics are 4 weeks long and are 30 minutes per session. They are designed for you and a buddy to not only learn fundamentals, but improve current skills and learn advanced techniques in a individualized environment.Below are the registration forms for the clinics. You can also call us at 278-1070 to get signed up.

Buddy Clinic 2015 hitting

Buddy Clinic 2015 pitching

Softball hitting Buddy Clinic 2015

Buddy Clinic Catching 2015



Our Clinics start up again in January. Our clinics are 6 weeks. We offer Hitting, Pitching,Catching, and Baseball Fundamentals. Each clinic has multiple sessions. We only allow 3 players per session so they get a lot of one on one instruction.  Below are the sign up forms for each clinic. You can also call us at 278-1070

2015 Hitting

2015 Catching

2015 Pitching

2015 Baseball Fundamentals


Softball Clinics:


Softball Hitting 2015


Slappers Clinic

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2014 Summer Clinics

At Walnut Creek Little League
9:00AM - 12 Noon
Ages 7-12

Grand Slam USA announces its Summer Baseball Clinics. This year, Grand Slam will be offering three different 6 week clinics that will cover Hitting and Bunting, Infield and Outfield, Pitching and Catching (positional). Each camper will receive a Grand Slam 2014 Summer Clinic t-shirt)
Please see the Lessons/Clinics/Camps page to print off the registration form.

Grand Slam USA Partners

Grand Slam USA and Peak Performance are glad to welcome F3 Fire Basketball to the facility! F3 Basketball is a not-for-profit program targeted at building, educating, and training our youth in competitive basketball, while mentoring life skills for each player to enable them to reach their full potential to perform at higher levels, on and off the court.

Please visit their websites below for more information on Peak Performance and F3 Basketball

Get In Touch!

Address: 4137 120th Street, Urbandale IA 50323

Telephone: 515.278.1070

FAX: 515.278.0848

E-mail: jhallman@grandslamusadm.com