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GSAS PERFORMANCE · FOR PARENTS OF AMBITIOUS YOUTH SOCCER PLAYERS

Train With Purpose. Develop With a Plan.

GSAS Performance is a structured athlete development system helping ambitious soccer players improve their physical, technical, tactical, and mental performance through personalized development plans, accountability, and measurable progress.

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My Process

GSAS PERFORMANCE × GSAS ATHLETE OS

More Than Training. A Complete Development System.

GSAS Performance helps ambitious soccer players develop through a personalized system built around four essential pillars: Physical, Technical, Tactical, and Mental.

01 /

Physical Development

Build speed, strength, agility, movement efficiency, and athletic resilience.

02 /

Technical Development

Improve ball mastery, first touch, passing, dribbling, and technical execution under pressure.

03 /

Tactical Development

Develop game intelligence, positioning, awareness, and faster decision-making.

04 /

Mental Development

Strengthen confidence, discipline, consistency, focus, and competitive resilience.

How GSAS Performance Works

STEP 1

Athlete Assessment

Identify the athlete's current abilities, strengths, development gaps, and priorities.

STEP 2

Personalized Development Blueprint

Create a structured development plan with clear objectives, training priorities, and measurable success indicators.

STEP 3

Training and Accountability

Provide personalized training assignments, daily habits, progress tracking, and ongoing coaching guidance through GSAS Athlete OS.

STEP 4

Performance Reviews

Review progress, provide coaching feedback, and adjust development priorities as the athlete improves.



Meet Your Private Coach



Hi! My name is Myles Cornwall. I bring over a decade of coaching experience and a professional playing background to the field. From competing at Walsh University to playing for Atlético Ottawa and Fort Wayne FC, I’ve learned what it takes to perform at a high level. My mission is simple: to help players unlock their full potential, year-round.



My Process




“My son only wants to train with Myles because they get along very well. I would recommend 1vs1 training sessions with Myles if your child is ready to development his/her skill level and see true results. Every skill move my son makes during a game, he says," that was thanks to Myles! "”Judy M.
“Through the sessions with Myles, my son has boosted his confidence, his positional awareness, as well as his fitness. I would recommend these sessions to anyone looking to fine-tune their abilities and have fun with a new coach. Myles challenges his players to dig deep and push themselves to see what they are truly capable of achieving.”Phaedra G.
“Training with Myles has made a huge difference in my daughter’s overall game. Her first touch, passing, and confidence on the ball have all improved dramatically. Myles creates sessions that are both fun and challenging, and he always finds a way to motivate her to give her best. We couldn’t be happier with the progress she’s made.”Jennifer M.
“Myles is an outstanding coach who knows how to connect with his players. My son always looks forward to his sessions and comes home eager to show what he learned. His creativity and speed of play have noticeably improved since working with Myles. You can tell Myles truly cares about his players and their development.”David N.
“What stands out most about Myles is how well he balances structure and enjoyment. The sessions are professional and focused, but the kids still have a great time. My son’s confidence and technical ability have grown so much over the past few months. Myles has a real gift for bringing out the best in his players.”Laura B.
“Myles has been amazing with my daughter. His attention to detail and ability to explain drills in a way that clicks for young players is impressive. She’s now more composed on the ball, understands the game better, and plays with more belief in herself. I’d highly recommend him to any parent looking for real, personalized development.”Chris A.