About Us

Where Legacy Meets
the Diamond

Ho’oilina means “legacy.” Everything we do is built on passing down the knowledge, discipline, and aloha that shaped our own careers.

Our Story

Ho’oilina Story
& Mission

With a combined 40+ years of experience playing and coaching baseball and softball, Mike, Keri, and our professional staff are driven to help athletes across the world achieve their collegiate dreams. Ho’oilina camps were designed with a well-rounded approach to elevate athletes’ potential in their collegiate and professional endeavors.

Mission Statement

Our mission is to provide unrivaled baseball and softball training to driven and dedicated athletes who want to play collegiately and professionally. Our holistic approach enables athletes to elevate their game mentally, physically, visually, and emotionally.

What Sets Us Apart

Built Different.
By Design.

01
Professional Instruction
Training led by former professional and collegiate athletes who bring real-world experience to every session.
02
High-Level Game IQ
Situational awareness, pitch recognition, and in-game decision-making that separates good players from great ones.
03
Peak Physicality
Position-specific conditioning designed to build endurance, strength, mobility, and long-term injury prevention.
04
Experience of a Lifetime
Cultural excursions, ocean workouts, and bonds forged in Hawai‘i that athletes carry with them forever.

Our Core Pillars

The Foundation of
Every Champion

Our values focus on proper mechanical training, exceptional physical fitness, mental toughness, leadership development, and unbreakable confidence.

01
Mechanical Training
Expert coaching to refine hitting, pitching, fielding, and throwing mechanics — helping every athlete reach their fullest potential.
02
Mental Training
Game and practice IQ, situational awareness, and mental toughness for success against the toughest competition.
03
Peak Physicality
Position-specific training to develop endurance, stamina, strength, mobility, and injury prevention.
04
Leadership & Confidence
Training to boost leadership skills, dominance on the field, and unshakeable confidence in every situation.

Your Coaches

Coached by Those
Who’ve Lived It

Mike and Keri don’t just teach the game — they’ve played it at the highest levels and dedicated their careers to developing the next generation.

Mike Diaz

Head Baseball Coach & Co-Founder

A former professional standout, Mike brings the experience of competing at the highest levels directly to every athlete he trains. His deep relationships with college programs across the country have helped dozens of Hawaiian athletes earn scholarship opportunities.

Professional Baseball (Cubs, Phillies, Pirates, White Sox)International (Puerto Rico, Chiba Lotte Marines)Amateur, Collegiate & Pro CoachingD1 PlacementCollege Recruiting

View Full Bio

Keri Casas

Head Softball Coach & Co-Founder

Keri is a decorated collegiate softball veteran whose passion for the game is matched only by her ability to connect with athletes. She specializes in developing confident, technically sound softball players who are ready to compete at the college level and beyond.

Played D1 SoftballCollegiate SoftballPitching SpecialistD1 · D2 PlacementsYouth Development

View Full Bio

7 Days · Hawai’i · Limited Spots

Ready to Transform Your Game?

Seven days of elite, immersive training with former professional and collegiate athletes — on the fields and beaches of Hawai’i. Your athlete will leave with sharper mechanics, a stronger mindset, and a clear recruiting path.

Contact Us