Greg Chertok, AASP-CC, M.Ed. Coach/Founder

   is the Director of Mental Training at CourtSense, a high performance junior tennis academy in Bergen County, NJ.  He currently holds academic appointments with the Departments of Psychology at Dominican College in Orangeburg, NY, and Seton Hall University in South Orange, NJ.  He is a Certified Consultant through the Association for Applied Sport Psychology as well as a Personal Fitness Trainer. 

   He received his B.A. in Psychology at Tufts University and his M.Ed. in Counseling specializing in Sport & Exercise Psychology at Boston University in 2007.  While at Tufts, he captained the baseball team and finished his career as an ESPN The Magazine Academic Regional All-American and a New England College All-Star, playing his final game at Fenway Park for the All-Star team.

   He has given seminars and workshops to coaches, parents, youth, professional athletes, Super Bowl champions, Stanley Cup participants, Junior Olympians, and Olympic athletes.  He has presented at pre-NFL Combine training sessions, the USA Hockey Coaches Convention, sports medicine symposiums, and sport psychology conferences at the regional and national levels.  He is a captain of the Psyching Team for the NYC Marathon.  Greg has also been featured as a regular Sport & Exercise Psychology expert on National Public Radio (NPR) Morning Edition and SiriusXM’s “Doctor Radio”.  Greg has been an expert media source for Reuters,, The Wall Street Journal, US News & World Report, Everlast, Outside, Runner’s World Magazine, Women’s Health Magazine, The Chicago Tribune, SportingKid Magazine, and Muscle & Fitness Magazine, among others.  He is on the Editorial Board for the American College of Sports Medicine’s Fit Society Page, and has co-authored a book geared toward youth baseball coaches entitled The Baseball Starter: A Handbook For Coaching Children and Teens. He resides in New City, NY with his family.

John Bagatta, Coach/Founder  

   received his degree in Business Management at Lynn University in Boca Raton, FL. He currently plays for the Palm Beach Waves of the National Amateur Baseball League (NABA), a highly competitive and nationally acclaimed wood bat league made up of former Major League, Minor League, Independent, and collegiate ballplayers, earning the prestigious MVP award during the 2005 NABA Championship game. With Coach Mann, Bagatta helped lead the American Legion Rockland Pirates to back-to-back state titles, a regional title, and a berth into the 2002 World Series in Danville, VA. Bagatta along with Mann, co-captained the 2002 Clarkstown North team to a state championship, and has been directing youth sports camps in the Rockland and Westchester areas for over 5 years. Presently, John resides in Florida where he works alongside top youth baseball coaches providing baseball training, running clinics, and giving one-on-one lessons.

Brandon Mann, Coach/Founder

   is entering his 3rd year in 2017 as the Varsity assistant baseball coach at Clarkstown South High School. Coach Brandon also has 8 years of college coaching experience. After spending two years as 1st Assistant Coach and Pitching Coach at Division I Iona College, Brandon accepted the full-time graduate coaching position at Manhattanville College in Purchase, NY in the fall of 2008. Although Brandon graduated from MVILLE in 2010 with his MA in Physical Education he continues to help out with the Valiant Baseball Program to this day. In Mann's first year, Manhattanville College won the regular season Freedom Conference Championship as the team went on to hit .356 with 23Hrs and average over 10 runs a game. They also led the nation in stolen bases with 162 in 41 games. Mann's second season with valiants proved to be a record setting year for the Manhattanville Valiants as the team went on to compete in the DIII Mid-Atlantic Regional after hitting .372 as a team and belting 34 Hrs. Before making the move into coaching, Coach Mann had a successful collegiate baseball career at Florida Atlantic University and Lynn University in Boca Raton. As a member of the 11th ranked 2003 A-Sun Champion FAU Owls Coach Mann competed in the regional at Coral Gables. He also played a big role in leading Lynn University to its first NCAA regional appearance. As a co-captain of the 2002 Clarkstown North state championship team, Coach Mann was named New York State Player and Athlete of the Year in 2002. Along with fellow owner John Bagatta, Coach Mann led the 2002 Rockland Pirates to the American Legion World Series in Danville, VA, finishing 5th in the country and losing to the eventual champions Mississippi. Coach Mann was elected to the Clarkstown North Hall of Fame in 2009 for his impressive baseball accomplishments. Coach Brandon is also the co-founder of the PBP Drillers Baseball Organization that is dedicated to yearlong youth baseball development. Coach Brandon lives in new city with his wife Rachel and daughter Makenzie Shea.


Danny Gallagher - Director

Danny graduated high school from Paramus Catholic High School in Paramus, N.J.

In 2014. he played four years of baseball for the Paladins and appeared in 38 games, making 36 starts during his sophomore campaign with the Valiants. Danny is majoring in marketing with dual minors in sport studies and finance at Manhattanville.

Jacob Kronberg 

Jacob is 17 years old and entering his senior year at Nyack High School.  He is a three year member of the Varsity golf team at school.  Besides golf he loves baseball and college basketball.  His favorite golfer is Jordan Spieth, and he's a huge Mets and Syracuse fan.  He is the president of Heroes and Cool Kids and The Interact Club at school.  Jacob is the only student sports announcer in Nyack HS history.  He hopes to attend Syracuse University's New House school of Communications when he graduates high school and would like to become a sports broadcaster.  Jacob was a member of the first class of Pitch by Pitch campers in 2007.

Matthew Kirby

Matthew is a 16 year old going into junior year at Clarkstown North. He enjoys both playing and watching baseball and football. His favorite teams are the Mets and the Jets. He played little league baseball for 9 years, positioned at 1st and 3rd base. He currently enjoys running and loves to compete in obstacle course races, such as Spartans and Tough Mudders.

Pete Iannarilli 

Pete Iannarilli was a Clarkstown South starting shortstop. A 3 year starter, 2 year captain, All Section, and All League MVP, Pete will be attending and playing baseball at Manhattanville in the fall.

Dalton Feely

Dalton is a senior at Nyack High School. He is a baseball player, playing Left Field for the varsity squad. His favorite sports are Baseball and Football. His favorite teams are the Arizona Diamondbacks and the Indianapolis Colts. His favorite players - LHP Wade Miley, LHP Chris Sale for baseball and QB Andrew Luck, WR T.Y. Hilton for football - bring a certain mental component and energy to their game that their opponents don't bring.

Steven Rizzuto 

Steven has grown up playing competitive baseball, basketball, football and ultimate Frisbee. Steven played 3 years of varsity baseball for Nanuet High School, mainly as a pitcher and infielder.  He is an avid Mets fan, and his favorite player is Jose Reyes.

Brandon Krinsky 

Brandon plays varisty baseball and runs track for Clarkstown North. His Favorite teams are the Yankees and the New York Giants. Brandon's favorite players are Giancarlo Stanton and Odell Beckham Jr.

Noah Mendelson 

Noah pitches and plays the outfield on the Clarkstown North baseball team. His favorite sport is baseball; his favorite teams are Baltimore Orioles and New York Giants; and his favorite player is Nick Markakis.