Welcome to Grand Slam U.S.A.

cropped-GS_USA_Hat_Logo_2012.jpgGrand Slam U.S.A. is located in Urbandale and is central Iowa’s most experienced indoor training facility for baseball, softball, and strength and conditioning. Grand Slam U.S.A. has been serving Des Moines and the surrounding areas for over 20 years. A number of players that we have helped develop over the years have earned high awards including: All-State and All-American honors. Many others have went on to play collegiality. Some have even earned professional contracts, including Jeremy Hellickson who currently pitches for the Baltimore Orioles.

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.

To access the page you are looking for click on our tabs at the top of the page. You can also click on our pages directly above our the pictures to Meet our Coaches and see what we are currently offering. If you have any questions, don’t hesitate to give us a call!

At this time we do not have any operational batting cages (machines). We are currently looking for more space to help accommodate to this need.

501(c)(3) Grand Slam Baseball Club

Grand Slam USA invites you to help make hope a reality by participating with the Grand Slam Baseball Club. Through our organization and your support, we hope to provide young men and women more opportunities through baseball and softball. We are dedicated to helping young athletes develop their skills and character, so they are prepared for the next level of competition in sport and in life. If you or your company would like to donate to our Grand Slam Baseball Club please contact us and we will send you more information!

Policies and Procedures

Below are our Policies and Procedures as well as our Contact Information. If you have any questions regarding anything please call us or send us an email! Follow us on social media as well, to keep current with what we are offering as well as other updates.

Grand Slam Policies and Procedures

Contact Us

Phone: 515-278-1070
Address: 4137 120th Street, Urbandale, Iowa, 50323
E-mail: jhallman@grandslamusadm.com
Twitter: https://twitter.com/GrandSlam_DM
Facebook: https://www.facebook.com/grandslamusa/

Business Hours

Spring Hours (January – April)
Monday – Saturday: 10AM – 9 PM
Sunday: 10AM – 8 PM

Summer Hours (May – August)
Monday – Thursday: 10 AM – 9 PM
Friday – Sunday: 10 AM – 7 PM

Fall Hours (Sept- Dec)
Monday – Thursday: 10AM – 9PM
Friday – Sunday: 10AM – 7 PM

Read More »

Indoor League Week 2 Results

Indoor League Schedule – Sat, January 13th
FINAL FR/SO Flack Attack, 15 vs Grand Slam Blue,19
FINAL Varsity Accurso, 15 vs Devil Road Dogs, 21
FINAL FR/SO SE Polk, 17 vs Waukee (Doty), 32
FINAL Varsity Valley, 26 vs Grand Slam White, 8
FINAL FR/SO Grand Slam Red, 24 vs DCG Mustangs, 13
FINAL Varsity Gilbert, 9 vs Waukee (Maharry), 24


Varsity Standings
1. Valley 2-0 1.000 45 23
2. Waukee (Maharry) 1-1 0.500 42 28
3. Accurso 1-1 0.500 34 37
4. Devil Road Dogs 1-1 0.500 34 44
5. Grand Slam White 1-1 0.500 28 44
6. Gilbert 0-2 0.000 27 44


Freshman/Sophomore Standings
1. Waukee (Doty) 2-0 1.000 58 35
2. Grand Slam Red 1-1 0.500 42 39
3. SE Polk 1-1 0.500 38 47
4. Grand Slam Blue 1-1 0.500 34 36
5. Flack Attack 0-1 0.000 15 19
6. DCG Mustangs 0-1 0.000 13 24
Read More »

2018 Youth Spring Break Camp Announced

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 will be emphasized throughout the camps.

We also like to see the kids compete against each other, and will have many games throughout the week tailored towards the specific skill we are focusing on for that day. Below is the registration from. Please give us a call or email us if you have any questions!

Spring Break Camp 2018

Read More »

Indoor League Week 1 Results

Indoor League Schedule – Sat, January 6th
FINAL Varsity Accurso, 19 vs Waukee (Maharry), 18
CANCELLED FR/SO Flack Attack vs DCG Mustangs
FINAL Varsity Valley, 29 vs Devil Road Dogs, 15
FINAL FR/SO SE Polk, 21 vs Grand Slam Blue, 15
FINAL Varsity Grand Slam White, 20 vs Gilbert, 18
FINAL FR/SO Waukee (Doty), 26 vs Grand Slam Red, 18


Varsity Standings
1. Valley 1-0 1.000 29 15
2. Grand Slam White 1-0 1.000 20 18
3. Accurso 1-0 1.000 19 18
4. Waukee (Maharry) 0-1 0.000 18 19
5. Gilbert 0-1 0.000 18 20
6. Devil Road Dogs 0-1 0.000 15 29


Freshman/Sophomore Standings
1. Waukee (Doty) 1-0 1.000 26 18
2. SE Polk 1-0 1.000 21 15
3. Grand Slam Red 0-1 0.000 18 26
4. Grand Slam Blue 0-1 0.000 15 21
5. Flack Attack 0-0 0.000 0 0
6. Gilbert 0-0 0.000 0 0
Read More »

January & February Youth Clinics filling up fast

Our January and February Clinics are filling up fast! The listed sessions below only have one more spot left.

Softball Hitting Session 5
Softball Pitching Sessions 2 & 5
Baseball Hitting Sessions 1, 5, & 9
Baseball Pitching Sessions 3, 8, & 9
Fielding Session 1
Fundamentals Sessions 2 & 4
Catching Session 4

In the past if we had a session completely full, we have split them into two sessions. But due to our club teams beginning practices we will not be able to accommodate to this during these months. Once a session is full, we will not accept any more registrations for it.

Below is the link to visit to print off a registration form. You can call in and sign up over the phone or come in and visit us, which ever is easiest for you.


Give us a call if you have any other questions!

Read More »

Limited Time Gift Certificate Special

From now until Sunday, December 3rd, 2017, Grand Slam is offering a special on gift certificates.

For every $100 you spend in gift certificates you get an additional $20 gift certificate.

Gift Certificates come in any denomination and can be used on individual lesson packages, camps, clinics and tunnel rentals!

Read More »

Youth Team Opening

Johnston Little League
Due to expansion, our Grand Slam Baseball Club has room for ONE more 8u, 9u, OR 10u team. If your team is interested, please contact us immediately and we can discuss the value you will get out of joining the Grand Slam Baseball Club!

Phone: 515-278-1070
Address: 4137 120th Street, Urbandale, Iowa, 50323
E-mail: jhallman@grandslamusadm.com
Twitter: https://twitter.com/GrandSlam_DM
Facebook: https://www.facebook.com/grandslamusa/

Read More »

2018 January-April Clinics Announced

Customers please check out our January through April Clinics that we will be offering at Grand Slam. This is our 24th year of offering clinics and we continue to see great results from our players, they fill up fast, please check them out!

Deadline for January and February Clinic is January 3rd at 9pm.
Deadline for March and April Clinic is February 21st at 9pm.

*There is a limit to three players per session. If there is only one person in the scheduled clinic, it will be shortened to 30 minutes instead of an hour.

Baseball Hitting
Softball Hitting
Baseball Pitching
Softball Pitching
Baseball & Softball Catching
Baseball & Softball Fielding
Baseball & Softball Fundamentals

Read More »

November-December Clinics Deadlines

Spots are filling up quickly for our November and December Clinics. Give us a call or come in and visit us to secure your spot in these Clinics before it is too late. We prefer that you print off the Registration Form and bring it in, but don’t hesitate to call us. We can take care of all of it over the phone. Below are the links to the Registration Forms for the Clinics.

Youth Clinics: http://www.grandslamdsm.com/2017/08/02/2017-fallwinter-baseballsoftball-indoor-clinics/
High School Clinics: http://www.grandslamdsm.com/2017/09/21/high-school-baseball-softball-clinics/

Deadline for the Youth Clinics are Wednesday, November 1st, at 9pm.
Deadline for the 4-Week High School Clinics is Tuesday, November 21st, at 9pm

Phone: 515-278-1070
Address: 4137 120th Street, Urbandale, Iowa, 50323
E-mail: jhallman@grandslamusadm.com

Read More »

HS Fall League October 22nd Schedule

Due to rain-outs and our agreements with the Fields only the top 4 will advance and play this upcoming weekend.

The fields we normally use for the league have a drop dead date of October 16th, so they can do field maintenance and irrigation for the Fall before bad weather moves in.

Below is our schedule for this weekend. Again, if there are any weather related issues please check Facebook and Twitter.

2017 HS Fall League Playoffs – October 22nd
#4 D’Backs @ #1 Marlins Urbandale Field #1
#3 Cardinals @ #2 Red Sox Urbandale Field #2
Championship Game Urbandale Field #2

Read More »

HS Fall League October 15th Schedule

Here is our tenative schedule for our October 15th Fall League Playoffs. If there are any weather related issues please visit our Facebook and Twitter pages. We will have all of those updates on those pages, because we will not have access on here during the weekends.

2017 HS Fall League Playoffs – October 15th
Game Location
#9 A’s @ #8 Rockies Walnut Creek Field #6
#12 Yankees @ #5 Mariners Walnut Creek Field #7
#11 Braves @ #6 Pirates Urbandale Field #2
#10 Royals @ # 7 Twins Urbandale Field #1
(A’s-Rockies Winner) @ #1 Marlins Walnut Creek Field #6
(Yankees-Mariners Winner) @ #4 D’Backs Walnut Creek Field #7
(Braves-Pirates Winner) @ #3 Cardinals Urbandale Field #2
(Royals-Twins Winner) @ #2 Red Sox Urbandale Field #1

Read More »

Subscribe to Receive Announcements, Specials and Updates

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 1,870 other subscribers

Central Iowa Strength and Conditioning

Central Iowa Strength and Conditioning is committed to developing our athletes both on and off the field. Our goal is to provide each athlete with the tools necessary to reach their athletic potential. Our Ultimate goal is to improve athletic performance, decrease the likelihood of injuries and increase mental and physical resiliency. Our goals are accomplished by utilizing ground based, multi-joint movements in an environment of positive reinforcement, great communication, and constant encouragement. We specialize in small group and team training. We feel this is the best way to facilitate a championship caliber atmosphere.

*Discounted Rates for members of Grand Slam baseball and softball clubs/Grand Slam Fall League players, contact Jim Hallman at Grand Slam USA to get signed up!
*Discounted rates for military, tactical operators (EMT’s, Fire Fighter, Law Enforcement)
*College athletes with valid ID are also eligible for discounted rates

Jared Fink
Director of Athletic Development
Central Iowa Strength and Conditioning
p: 515.897.8336

2018 Jan-Apr Clinics

Grand Slam USA announces January-April Softball and Baseball Clinics! Grand Slam will be offering Fall Youth clinics that will cover Hitting, Fielding, Pitching and Catching (positional) and Fundamentals for both Softball and Baseball.
Please see the Jan-Apr Clinics page to print off the registration form.

Pure Prep Academy

Grand Slam USA is glad to welcome Pure Prep Basketball Academy to the facility! Pure Prep Basketball Academy is built on the philosophy that development driven training produces future high level athletes. Hard work, perseverance, and dedication are the center of their relationship building concepts.

For more information go to - https://www.pureprepacademy.com/

Grand Slam Baseball Club

Upcoming Camp

Get In Touch!

Address: 4137 120th Street, Urbandale IA 50323

Telephone: 515.278.1070

FAX: 515.278.0848

E-mail: jhallman@grandslamusadm.com