Business Details
24 Years
experience
Premier Baseball Training in Englewood, CO
Slammers Baseball is a premier baseball training program dedicated to developing players of all ages and skill levels. Our experienced staff, including former professional players and certified instructors, offers personalized coaching, advanced training programs, and state-of-the-art facilities. With over 70 years of combined expertise, we provide private lessons, group clinics, and competitive teams designed to enhance athletic performance. Our 22,000-square-foot Englewood facility features 11 indoor tunnels and cutting-edge equipment for year-round training. We specialize in college placement, with a proven track record of helping athletes secure opportunities at NCAA and professional levels.Our programs include Arm Velocity Training, Advanced Catching, and Strength & Conditioning, tailored to individual and team needs. We emphasize holistic development, combining technical skills with mental resilience and sportsmanship. Slammers Baseball fosters a supportive environment where players gain confidence and achieve their full potential. Our commitment to excellence has earned recognition from professional scouts and collegiate programs nationwide. Whether aspiring to play at the highest level or seeking foundational skills, athletes benefit from our comprehensive approach to baseball training.
Services
Private Lessons
Youth Leagues
Arm Velocity Program
Strength Training
College Recruiting
Details
- Year established: 2002
Highlights and features
- Our staff has 70+ years of combined professional and collegiate playing/coaching experience.
- We offer personalized training in a 22,000 sq ft facility with 11 indoor tunnels.
- We've placed hundreds of players in NCAA and professional baseball programs.
- We provide specialized programs including Arm Velocity Training and Strength & Conditioning.
- Our coaches include former MLB players and certified strength training professionals.
What people say
Improved batting average
Expert coaching
College placement success
Confidence building
Professional facilities
Services
Private Instruction
Personalized baseball training with professional instructors focusing on pitching, hitting, and fielding techniques. Sessions address individual mechanics, strength development, and sport-specific skills. Tailored programs help athletes improve performance and build confidence at every level.
Youth Programs
Structured training for players aged 6-14, including skill clinics, tournament teams, and summer select programs. Emphasizes fundamental development, teamwork, and competitive readiness through age-appropriate instruction and game experience.
Arm Velocity Program
Specialized training combining weighted ball drills, plyometrics, and biomechanical analysis to increase pitching power and efficiency. Designed for serious athletes seeking measurable improvements in throwing velocity and injury prevention.
Strength Training
Customized strength and conditioning programs for baseball players of all ages. Focuses on power development, mobility, and injury prevention through sport-specific workouts and performance analytics.
College Recruiting
Comprehensive support for athletes pursuing collegiate baseball opportunities. Includes video production, profile promotion, and guidance through the recruitment process with NCAA and NAIA programs.
People
Mark Holzemer
Owner & President
Former MLB pitcher with 15-year professional career. Co-owner of Slammers Baseball since 2002. Delivers over 8,000 private lessons and serves as Kansas City Royals associate scout.
Billy Martin
Owner & Instructor
Former professional player with 8-year minor league career. Certified strength trainer and hitting specialist. Part owner since 2005 and Kansas City Royals associate scout.
Clint Zavaras
Owner & Pitching Coach
MLB veteran and pioneer of biomechanics-based pitching training. Developed nationally recognized Arm Velocity Program. Owner since 2002 and Royals associate scout.
Questions
What age groups do you serve?
We offer programs for players aged 6 through high school with specialized youth, junior, and senior training options.
Do you offer private lessons?
Yes, we provide one-on-one instruction for pitching, hitting, and fielding with professional coaches.
Are there team opportunities?
We field competitive youth select teams and high school summer/fall select squads with national tournament participation.
How do you help with college recruiting?
We offer video production, profile promotion, and direct connections to NCAA programs through our recruiting coordinators.
What facilities do you have?
Our Englewood location features 22,000 sq ft with 11 indoor tunnels, automated pitching machines, and strength training equipment.
Videos
Reviews (4)
Magdelena R.
Dec 31, 2021
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Overbooked with teams and private lessons. Paid members cannot get in to practice. They need to expand.
Gregory Isenhart
Nov 09, 2020
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My expierence as a coach and having a son play for Slammers was an excellent one. Always helpful, always accommodating with field and cage time and more. Good people who really do try and help the athletes develop and grow as players and adults. Highly recommend Slammers.
Mike W.
Oct 27, 2020
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If you're looking to pop in and just use the batting cages, they do have them, but it's not their main focus. This place is used primarily for individual lessons or by teams that rent out the tunnels, field, and/or weight room for practices. They have great instructors and a great GM in Jeff.
Birch Prospects
Sep 07, 2020
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I Appreciate Slammers For The Hospitality They Showed Birch Prospects and The College Coaches Who Attended Our Showcase! Thank You!
