Coach Jayson King — Head Baseball Coach, University of Dayton
Baseball and softball training for youth through high school athletes in Winthrop, Boston, and Greater Boston. Private lessons, small-group sessions, clinics, and complete five-tool development.
Private Lesson — Ages 9 & Under · $50/hour
Private Lesson — Ages 10+ · $65/hour
Speed, Agility & Plyometrics — Ages 6–12 · $10/player
Speed, Agility & Plyometrics — Ages 13+ · $10/player
Choose a service, select an open time, and submit your request for confirmation. Winthrop and Greater Boston.
Build the Player. Build the Confidence. Build the Habits.
Former College Player · Youth Through High School Development · Individual and Small-Group Training · Serving Winthrop and Greater Boston
Programs
Every athlete is different. Every program is built around that.
Private Lessons
One-on-one instruction focused on hitting, pitching, fielding, or catching. Tailored to the athlete's age, skill level, and goals.
Small-Group Training
Two to four athletes training together. Competitive reps, peer accountability, and personalized coaching in every session.
Clinics & Camps
Structured multi-player sessions covering fundamentals, position work, and game-situation reps. Announced seasonally.
Speed, Agility & Plyometrics
Athletic development built for baseball and softball. Improve first-step quickness, lateral movement, and explosive power. Ages 6 and up.
Team Training
Pre-season and in-season sessions for travel and rec teams. Focused on fundamentals, situational play, and team-wide development.
Five-Tool Development
A complete program targeting hitting for average, hitting for power, speed, arm strength, and fielding. Built for the athlete who wants to develop every part of their game.
Coaching Philosophy
The game rewards athletes who show up, put in the work, and compete with purpose. Every session at BaseballDNA is built around three things: developing real skills, building genuine confidence, and establishing habits that carry into every at-bat, every inning, and every season.
No shortcuts. No fluff. Just focused, rep-by-rep development that prepares athletes to perform when it counts.
Meet Coach Mark
A former college baseball player with years of experience developing youth and high school athletes across Greater Boston. Coach Mark brings a player-first approach to every session — focused on the individual, not a one-size-fits-all curriculum.
BaseballDNA was built on the belief that every athlete deserves coaching that meets them where they are and pushes them toward where they can go.
See BaseballDNA in Action
Watch what rep-by-rep development looks like on the field.
THE GAME IS IN YOU
WEAR THE GAME
PLAYER DEVELOPMENT, BUILT REP BY REP
Individualized baseball training for pitching, hitting, position-specific skills, and complete five-tool development—plus speed, agility, and plyometrics. Performance feedback can include Blast Motion bat-speed, attack-angle, and swing analysis.
STAY IN THE GAME
Get training updates, speed, agility and plyometrics session announcements, clinic news, and BaseballDNA releases. Questions? Email info@playbaseballdna.com.