Mark Mainini - Baseball Instruction & Baseball Camps

Developing skills and preparing baseball players for the next level -


Developing baseball & softball skills - Preparing players for the next level          -

Palos Verdes, CA  -South Bay of Southern California



Private Baseball Instruction and Training -

Baseball Camps -

- Hitting Clinics -

- Pitching / Catching Clinics -

South Bay of Southern California 

Big Bear Lake, Big Bear City, Lake Arrowhead, Sugarloaf, 

Southeast Texas


South Bay Stallions
Club Baseball Team

The South Bay Stallions are currently looking for players for our 12U club baseball team.  Eligible players must be 12 years old before September 1, 2019.

Tryouts are scheduled by appointment only on two Saturdays mornings; August 17th and August 31st.  If interested in scheduling a tryout, please contact Mark Mainini.

Mark Mainini's Email:


Baseball Training in southern California -

"When parents and coaches ask me who can really teach and train their baseball players or teams, I recommend Mark Mainini."

                                                    ~ Don Slaught

Don Slaught, aka "Sluggo", played in the Major Leagues for sixteen years - hitting coach of the 2006 American League Champions; the Detroit Tigers, & creator of "RightView Pro" - state of the art video analysis teaching system for baseball and softball


Baseball Instruction / Baseball Training in the South Bay of southern California for Players of All Ages and Skill Levels

High School Players

Little League Players

PONY Players

College Players

Club Team Players


Coach Mainini's Baseball Instruction  

3 Locations -

- Torrance, southern California

- Big Bear Lake, Big Bear City, Lake Arrowhead, Sugarloaf


- near Beaumont, TX at "Primetime Baseball and Softball

Training Center" in Nederland, Texas - USA


Baseball Training - South Bay of southern California

"Coach Mark Mainini has worked with my 12 and 10 year old sons through club baseball and private lessons. They are both better pitchers and improved hitters, who have an improved command of situational baseball and now own an understanding of the finer details of the game of baseball. My boys are huge fans of Coach Mark, not only because of what he teaches them, but how he interacts with them. He has contributed significantly to their love of the game."

                                                                           -  Richard Rosas 


Baseball Training in PV - (Palos Verdes)

"Mark Mainini is simply the best baseball instructor for young men aged 8 to 17 I have ever seen - and I have seen many."   - Gary


Baseball players travel to southern California from all over America and abroad for baseball instruction and training with Coach Mainini.


Baseball Camps & Baseball Clinics

Our baseball camps are open to players of all Little

Leagues and PONY Leagues


De Portola Park 

25615 Lazy Meadow Dr.

Torrance, CA 90505 - 

Near Palos Verdes, Redondo Beach, San Pedro, Long Beach, Harbor City, Hermosa Beach,

Manhattan Beach and Carson, CA

25615 Lazy Meadow Dr. Torrance, CA 90505



During our baseball camp, we provide baseball instruction and training in Hitting, Pitching / Throwing Mechanics, Fielding of All Positions, Catcher's Skills, Base Running, Situational Defense, and much more; from the fundamentals to the finer points of the game.  And the players have a blast! 

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- We are passionate about the amazing game of baseball and love teaching kids.

- It is important to us that our players have fun while playing this incredible game. 

- Players learn, improve, and have a blast. 

- When players improve, they develop confidence, which makes baseball even more enjoyable.

- Our baseball trainers teach all aspects of baseball to players of all ages and skill levels; from the fundamentals to the finer points of the game.  

- Players get a clear understanding of what they need to do in order to improve.

- Our baseball Instructors develop skills and prepare players for the next level.

- Our goal is to have our players reach their maximum potential

- Players attending our South Bay Baseball Camps benefit from individualized attention and baseball instruction in a positive and enthusiastic environment. 

- Our baseball coaches provide baseball training in: Hitting - Pitching / Throwing Mechanics - Fielding of All Positions - Base Running - Situational Defense - Catcher's Skills

- Players learn sportsmanship and benefit from positive interaction with coaches and the other players.  They gain a respect for the game and an understanding of what team work really means, on and off the field.



Important camp information:

- Players attending camps or clinics should bring their glove and bat if they have one.

- Players should wear a protective cup, hat, and sunscreen.

- Catchers should bring their gear if they want to work on catching skills.

- We provide catcher's gear for players who would like to try catching.

- Players should wear baseball pants and baseball socks - if possible.

- Players should bring a packed lunch, snacks, and drinks.

- We will have water for them during camp.

- Shade is available for the players.

- Players should look forward to having a blast!





Location -  Primetime Baseball & Softball Instruction & Training

                   1959 Hwy 69 N.

                   Nederland, TX

Dates - To be announced


(409) 727-7463


___Hitting Instruction & Pitching Instruction with Video Analysis

Through the use of "RightView Pro", our students benefit from hitting video analysis, (swing analysis), or pitching video analysis during each lesson with Coach Mainini.  This teaching tool allows them to see themselves in side by side synchronized video comparisons of swings or pitching deliveries with over 100 of the most successful hitters and pitchers in the game today, and of years past.  Video analysis visually defines precisely what the most efficient hitters and pitchers in the world ALL do.  We point out what the student is doing versus what they need to do.  The student can actually see it.  Coach Mainini implements the appropriate improvement drills in order to improve their efficiency.

Online Baseball Video Analysis for Hitting and Pitching

Online Softball Video Analysis for Hitting


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Coach Mainini

".... Importantly, Mark makes practice and games fun for all the players.  Skill improvement and fun!  This is priceless!"

                                                                 - G. Frazier


Baseball Workouts with Coach Mainini -

"...The boys have a GREAT time.  They "can't wait" until the next one.  They joke and laugh and learn baseball at the same time.  Mark is also great in giving them life lessons.  More than just baseball."           - K. Patman


Softball Instruction & Training

South Bay of Southern California


Southeast Texas near Beaumont -

at "Primetime" in Nederland, TX


Baseball Conditioning

Softball Conditioning




Baseball Training in California and Nederland, TX

Southern California Baseball Camps and Clinics

Professional Pitching Instructor / Professional Hitting Instructor

(310) 489-4222