ABOUT O3 SPORTS / OUR STORY

Shaping
Athletes
For Life.

The game is where it begins.
The impact lasts a lifetime.

DISCOVER OUR PHILOSOPHY
O3 basketball campers and coaches together at the gym
A PLACE TO LEARN. A TEAM TO BELONG TO.

01 / WHY WE EXIST

Develop the athlete.
Strengthen the person.

A young athlete walks into the gym to get better. Along the way, they learn to show up, work through frustration, trust their teammates, and believe in themselves. Those moments are at the heart of O3 Sports.

Based in the Saline & Ann Arbor area, we bring basketball, volleyball, and strength training together to help athletes across Southeastern Michigan grow. Whether an athlete is discovering a sport or working toward the next level, our purpose is the same: develop their abilities, strengthen their character, and help them carry both into life.

02 / HOW WE GOT HERE

One-on-one attention.
A growing community.

Built in Ann Arbor.
Rooted in athlete development.

2006

Community beginnings.

We started with One on One Basketball through Rec & Ed in Ann Arbor and the surrounding communities, bringing basketball instruction to local athletes.

2012

A gym of our own.

We renovated a church gym in downtown Ann Arbor, creating a dedicated home for our growing programs and the athletes who trained with us.

NOV. 2016

Room for the next chapter.

We outgrew the church gym and opened the O3 Sports Complex in November 2016, giving our athletes and programs more space to develop.

TODAY

Building toward what’s next.

We are exploring an expansion that would double the size of our existing building, with the hope of beginning construction in 2027.

THE THREAD THROUGH IT ALL

Every player brings different abilities, ambitions, and challenges. We want each one to have the guidance and encouragement to take their next step.

03 / THE O3 PHILOSOPHY

Built into every practice.
Carried into life.

Helping athletes reach their potential takes more than teaching technique. Our philosophy connects how they train, how they think, and how they treat others.

THE PURPOSE BEHIND THE PROCESS

SHAPING
ATHLETES
FOR LIFE.

Five beliefs that guide the way we coach, the environment we create, and the people we help athletes become.

EVERY SPORT. EVERY STAGE. EVERY ATHLETE.

01LOVE THE GAME

Passion

Start with a love of the game.

We want athletes to look forward to coming back. Our coaches bring energy and enthusiasm to age- and skill-appropriate training, creating an environment where athletes can enjoy learning and want to keep improving.

02DO THE WORK

Hard work, work ethic & dedication

Turn goals into daily habits.

Progress takes purposeful effort. We encourage athletes to break big goals into smaller milestones, write them down, and take responsibility for the work. Following through is a skill they can use everywhere.

03UNDERSTAND WHY

Knowledge

Become a student of the game.

We help athletes understand why a skill works, how to read a situation, and what makes a good decision. Learning to think about their sport helps them become more capable, independent players.

04RESET & RESPOND

Confidence & composure

Make a mistake. Learn. Keep going.

Missed shots, tough losses, and frustrating practices are part of sports. We teach athletes to manage their emotions, regain their focus, and respond with confidence. What they do after a mistake matters.

05LIVE THE LESSON

Character development

Carry the lessons beyond the gym.

Sports create everyday opportunities to practice respect, accountability, teamwork, and humility. We use moments of success and adversity to help athletes become better teammates and prepare for challenges in life.

THE LASTING IMPACT

The confidence to try. The discipline to keep working. The character to lift others.

05 / WHY WE WANT TO EXPAND

More room
to develop.
More athletes
to reach.

We want more athletes to experience a place where they are known, challenged, encouraged, and given the opportunity to grow.

Expanding O3 would create more room for consistent training, team practices, and strength development. It would give us greater flexibility to support athletes at different stages and bring more of their development together in one place.

Our longer-term vision is to bring that same approach to more communities. As we grow, our responsibility is to protect the things that make O3 matter: coaches who care, purposeful instruction, and an environment that values the person as much as the player.

BE PART OF WHAT’S NEXT

The people behind O3

Meet Our Management Team.

Jonathan Kronberg

Jonathan Kronberg

President & Founder

Background

Jonathan founded O3 to help youth and adults build confidence and accomplish goals that once felt out of reach. A Coast Guard veteran, his focus is creating a supportive environment for progress in sport and life.

Qualifications
  • CrossFit Level 1 and CrossFit Scaling
  • Certified Weightlifting Performance Coach
  • Certified Speed & Agility Coach
  • USA Basketball Gold Licensed Coach
  • USA Soccer E Licensed Coach
Contact Jonathan
Shelbi Post

Shelbi Post

Director of Operations
Director of O3 Volleyball

Background

Shelbi leads operations at O3 Sports and directs O3 Volleyball. She has coached O3 club teams since 2014, with experience leading boys and girls teams and coaching at the high school level. Her coaching specialties are defense and serving.

Qualifications
  • O3 club team coach since 2014
  • MIVCA Coach of the Year, 2020
  • 18U Boys and 15U National Girls Head Coach
  • Former Ann Arbor Skyline Freshman Head Coach, 2017–2023
  • Former Milan JV Head Coach, 2015–2016
  • Specialties: defense and serving
Contact Shelbi
Jordan Ebbs

Jordan Ebbs

Director of O3 Basketball & Academy (Boys)

Background

Jordan directs O3’s boys basketball program and The Academy, connecting individual player development with competitive team basketball. His coaching experience includes The Academy’s national AAU teams and developing high school players who have gone on to college basketball.

Qualifications
  • Director of O3 Basketball & Academy (Boys)
  • The Academy national AAU team coaching experience
  • UA Rise circuit coaching experience
  • Oakland Community College – Head Assistant Coach (2025/26)
Contact Jordan
Cathi Powell

Cathi Powell

Director of O3 Basketball (Girls)

Background

Cathi directs O3’s girls basketball program and brings collegiate playing experience in both basketball and track and field. A Cornerstone University athlete from 2002–2006 and a 2014 Hall of Honor inductee, she specializes in shooting and all-around basketball skill development.

Qualifications
  • Cornerstone University Hall of Honor inductee, 2014
  • Three-time basketball All-American, including First Team in 2003–04
  • Finished her collegiate career as the program’s all-time leading scorer
  • Six-time track and field All-American
  • WHAC Track & Field Athlete of the Year, 2002, 2003 and 2004
  • Shooting and all-around skills development
Contact Cathi
Steve Koski, Director of O3 Strength

Steve Koski

Director of O3 Strength • CSCS

Background

Steve holds a dual master’s degree in Sports Nutrition and Sports Performance Training and a Movement Science degree from the University of Michigan. An Air Force veteran, he brings experience in strength and conditioning, personal training, and coaching.

Qualifications
  • NSCA Certified Strength and Conditioning Specialist
  • Certified Sports Nutritionist, ISSN
  • Precision Nutrition Level 1
  • IYCA International Speed & Agility Specialist
  • USAW Olympic Lifting Level 1
  • CrossFit Levels 1 & 2
  • CrossFit specialty training in mobility, football, powerlifting, gymnastics, endurance, and nutrition
Contact O3 Strength

SHAPING ATHLETES FOR LIFE

Our time with an athlete is one chapter.
What they take from it can last a lifetime.

Our Partners

Our Sponsors

Thank you to the businesses supporting O3 Sports and helping us Shape Athletes For Life.