Thank you for visiting Slammers Baseball & Softball. Slammers is the Premier indoor training facility in Colorado dedicated to fulfilling the needs of players of all ages and abilities. Our staff and instructors have over 75 years of combined professional playing and coaching experience. We offers a wide variety of instruction including private one-on-one lessons, group and team clinics as well as specialty camps offered throughout the year. We also have youth leagues and competitive youth and High School travel teams. Regardless of your skill level, you will benefit from our staff's vast knowledge of pitching and hitting. Our 40,000 square foot Lakewood facility offers 17 indoor tunnels for personal or team rental and five fully automated pitching machines to refine your baseball and softball skills. We can handle all of your Team Sales needs as well as any retail equipment needs. We offer a fully staffed pro shop which offers a full line of the highest quality gloves, bats, shoes and clothing from well-known brands including Mizuno, New Balance, Wilson, Louisville, Under Armour, Easton, Rawlings and many more quality brands.

Mark Holzemer

President/ Director of Leagues
& Camps - Baseball

Mark is a proud Littleton native and President of Slammers Baseball & Softball. Mark is former Major League left-handed pitcher who was drafted in the 4^th round of the 1987 draft after graduating from J.K. Mullen High School. Mark played at Seminole Junior College in 1988 where he pitched in the Junior College World Series and earned 1^st team All-American honors. Mark began his 15 year professional career with the California Angels in 1988 where he was both a starter and relief pitcher. In addition to the Angels he pitched in the major
leagues for the Seattle Mariners, Oakland Athletics and Philadelphia Phillies as well as playing for the Yokahama Baystars in the Japanese Major Leagues in 2001. Mark played three seasons of winter ball in Venezuela and one season in Mexico. Upon retiring in 2002 Mark became co-owner of Slammers baseball & Softball. Mark’s passion is working with players of all ages to teach them the great game
of baseball. Since joining the Slammers organization Mark has given more than 7000 private lessons. Mark has coached 6 year old teams, 12 year old teams and High School select teams. Marks’s 12 year old team won the USSSA majors State Championship in 2010 and he finished 5^th with this team in Cooperstown. He has competed with the Slammers teams in National tournaments across the country. Mark is currently an associate Scout for the Boston Red Sox.