Indoor Baseball Hitting League

Grand Slam has developed an Indoor Baseball Hitting League to give pitchers, catchers and hitters an opportunity to develop fundamentals and improve their skills in the Winter months. The league is comprised of 3 age groups (13&14) (Fresh/Soph) and Varsity. There will only be 6 teams per age group!
To register or for more information click on the link below. You can also call us at 515-278-1070.

2016 Hitting League Registration

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Christmas Camp

Christmas Camp

December 28th-30th, 2015
9am – 12 noon
Ages 7-12 (limited to 40 players)

Our camps focus on developing a well rounded player. Players will be divided into groups according to age and/or ability.
Attention will be given to hitting, pitching, catching, fielding, mental aggressiveness, ball concentration, offensive/defensive drills,
sliding, conditioning and more. Skill development both physically and mentally with be emphasized throughout the camps.

See the flyer below to register

2015 Christmas Camp Registration Form

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Grand Slam Holiday Web Store

We are excited to let you know that Grand Slam USA has teamed with Bill Whiteley and Decker Sports to provide a web store for the general public to order Grand Slam Merchandise, as well as a separate web store for team uniforms, apparel and equipment!

This is the first time that this merchandise has ever been available. We have everything from hats to t-shirts, hoodies, shorts, women’s apparel and more! The link is listed below.

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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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January-April 2016 Baseball and Softball Clinics

Customers please check out our Winter/Spring Clinics that we will be offering at Grand Slam. This is our 22nd year of offering clinics and we continue to see great results from our players, they fill up fast, please check them out!

Hitting 2016

Softball Hitting 2016

Pitching 2016

Softball Pitching 2016

Baseball Softball Fundamentals 2016

Catching 2016

Fielding 2016

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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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2016 Clinics

Grand Slam USA announces January-April Softball and Baseball Clinics! Grand Slam will be offering 6 week clinics that will cover Hitting, Fielding, Pitching and Catching (positional) and Fundamentals for both Softball and Baseball. 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 Iowa Fire Basketball to the facility! Iowa Fire 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 Iowa Fire Basketball

Get In Touch!

Address: 4137 120th Street, Urbandale IA 50323

Telephone: 515.278.1070

FAX: 515.278.0848