Speed and agility
Acceleration, deceleration, change of direction and court coverage.
Personalized speed, strength and conditioning programs built around your tournament schedule, your playing style and where you train. Coached online by Pol and Eric Estalella from Barcelona.
Players our coaches have trained or supported
Nicolás Jarry, Nina Stojanovic, Joel Schwaerzler, Despina Papamichail, Francesca Curmi, Ilya Ivashka
Tennis asks for speed, power and endurance in the same rally, week after week of tournaments. Our programs are written for that calendar, with the movement and biomechanics of the sport at the center of every session.
Every athlete gets one integrated plan covering all three. No off-the-shelf templates.
Acceleration, deceleration, change of direction and court coverage.
Max strength, rate of force development, rotational power and injury resilience.
Aerobic fitness, repeated sprint ability, match endurance and tournament readiness.
Sports science combined with the eye of coaches who have worked on the pro tours. Three stages, repeated all season.
We learn how you move, what you've been through and what's coming up.
Your plan is written for you and timed to your season.
The plan changes as your schedule, body and results do.
Every athlete starts with a free intro session, so we can make sure we're the right fit before you commit. Monthly plans, in USD.
Individualized strength and conditioning for competitive players.
Ideal for junior competitors, high school players, college prospects and competitive club players.
Start with a free sessionCloser monitoring and more frequent adjustments to your schedule.
Ideal for college players, high-level juniors, national-level competitors and ITF athletes.
Start with a free sessionFull high-performance support designed around competition.
Ideal for ITF, ATP and WTA players and full-time competitive athletes.
Start with a free sessionPerformance coaches based in Barcelona, combining sports science with a focus on tennis biomechanics, on-court movement and performance transfer.
Co-founder and performance coach
Degree in Physical Activity and Sport Sciences (CAFE) from Blanquerna, Ramon Llull University.
Co-founder and performance coach
Degree in Physical Activity and Sport Sciences (CAFE) from the University of Barcelona.
Both have coached at Tennis Barcelona and CMC Academy, and currently work at Next Level Academy in Barcelona.
Athletes Pol and Eric have coached
Alina Charaeva, Francesca Curmi, Ilya Ivashka, Katya Reyngold, Joel Schwaerzler, Despina Papamichail, Maria Bondarenko and Nina Stojanovic. Plus physical preparation support for Nicolás Jarry.
We help players move better, react faster, hit stronger and compete with confidence.
Our mission is to elevate your game through science-based physical preparation and a relentless commitment to improvement.
Baseline Lab was co-founded with Sabrina Manea, Marketing Director.
“They are passionate and experienced, with a genuine hunger to help their players improve. Eric and Pol also have the kindness and humanity that's missing today in the world of sports.”

“Pol and Eric are reliable and professional trainers who do their work with immense dedication. I recommend them to anyone looking for a professional and serious approach to training.”

“I had the pleasure of working with them, especially Pol, for a year and a half, and I couldn't have been happier with what we accomplished together. We qualified for and competed in the Olympic Games representing Greece, as well as all the Grand Slam tournaments, while maintaining an outstanding level of physical fitness.
Tennis is an incredibly demanding sport from a physical standpoint. It requires developing strength, power, agility, plyometrics, endurance, and much more. Pol and Eric were always highly professional in the way they planned and organized our training sessions, especially when preparing for competition, ensuring that I was able to perform at my best throughout every match. Exceptional work.”
“Working with Eric and Pol has been a great experience. They are extremely professional, always bring positive energy, and make the process enjoyable. Having competed in sports at a very high level themselves, they truly understand what it takes to perform and succeed.”

“I worked with Eric for over three years, during which my fitness improved tremendously. Thanks to Eric and Pol, I became faster, more explosive, and stronger, while staying injury-free through the daily prevention work we did.
What stood out was their ability to adapt sessions to how I felt on any given day, whether sore or fatigued. They have a great understanding of what athletes need and genuinely care about your development both as a player and as a person.
I thoroughly enjoyed working with them and am extremely grateful for their time, support, and dedication.”
“Pol and Eric have three qualities that make them so good: strong values, knowledge, and motivation. Combined with their physical preparation, which the Estalellas seem to have in their blood, it makes them a world-class team.”
“I had an excellent experience training with Eric and Pol. From the start, they took the time to understand my goals and tailored each session to improve my performance on the court. Their expertise, motivation, and attention to detail significantly improved my fitness, agility, strength, and confidence.
What stood out most was how enjoyable every session was. They created a positive, supportive environment that pushed me to improve while making training fun and engaging.
Thanks to their guidance, I've seen improvements in my on-court fitness. I highly recommend Baseline Lab to anyone looking to elevate their athletic performance.”
“I loved working with Pol and Eric because they did a great job of customising my workouts for my individual needs whilst in the academy, as well as always being present and involved on and off the court. On top of that they are such lovely people who really care about your success and health, whilst still making training fun!”
No. Programs are delivered online through our training app, with video consultations on the higher plans, so you can train wherever you are. Pol and Eric coach from Barcelona.
Competitive players at every level: junior competitors, high school and college players, college prospects, ITF players, and ATP and WTA professionals.
You meet one-on-one with Pol and Eric. We talk through your game, your tournament schedule and your goals, look at where you are physically, and recommend the program that fits. There's no cost and no commitment.
We review your tournament calendar before writing anything, then program your training around it. As your schedule changes, or if you pick up an injury, we adjust the plan.
If you're not sure, that's exactly what the intro session is for. Tell us about your level and schedule and we'll recommend Performance, Performance Plus or Tour.
A complimentary one-on-one session with Pol and Eric. No cost, no commitment.