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Author & Reviewer

Lavie Sak

Founder & Head of Product at ADV. Former ATPCA-certified tennis coaching pro. Product leader ex-Disney and TeamSnap.

About

Lavie Sak is a co-founder of ADV, an engineered performance brand modernizing gear for tennis, pickleball, and racquet sports. He builds from a rare vantage point: a product leader who shaped consumer technology at Disney and TeamSnap, a former ATPCA-certified coaching professional, and a lifelong player who has spent as much time on the court as in the design studio.

His work sits at the intersection of human-centred design and the racquet-sports life. After years shipping software used by millions, Lavie left tech to build ADV full-time, applying the same product rigor to the bags, tools, and accessories players actually carry. The through-line is a simple belief: everyday gear should be engineered as thoughtfully as the equipment pros rely on.

Expertise

Areas Lavie works and writes in:

Product managementRacquet-sports gear designHuman-centred / UX designSports technologyTennis coachingHardware & wearablesConsumer products

He holds a granted US patent for swing-sensor feedback technology (US 2015/0057112 A1) and mentors with the International Sports Technology Association.

Experience

  • Co-Founder, Head of Product & Ops
    ADV
    Northern Virginia · Present

    Co-founder of ADV, an engineered gear brand for racquet sports. Leads product, ops, and finance, taking bags and accessories from concept to court.

  • Director of Product: Mobile, Members & Communications
    LeagueApps
    Youth sports software · Apr 2021 – Oct 2024

    Led product for the mobile apps, member experience and communications used by the leagues and clubs on the LeagueApps platform.

  • Co-Founder
    Shot Stats
    Sports technology

    Co-founder of Shot Stats, a HAX-backed tennis tech startup. Led product on Challenger, a racquet sensor and app that gave real-time swing data, from concept to beta prototype, funded through Kickstarter and outside investment. Retrospective.

  • Senior Product Manager & Interim GM, Consumer
    TeamSnap
    Youth & recreational sports software

    Led consumer product and stepped into an interim general manager role, driving cross-functional strategy. A messaging initiative he owned delivered a 35% year-over-year increase in daily active users.

  • Product & Technology
    The Walt Disney Company
    Orlando · Glendale · Seattle

    Shaped consumer-facing technology and digital products at global scale before moving full-time into sports.

  • Certified Tennis Coaching Professional
    ATPCA
    Australian Professional Tennis Coaches Association

    Coached players on court as a certified professional for 8 years in Sydney and Atlanta.

Education

University of Sydney
Master of Interaction Design & Electronic Arts — human-centred and research-based design
2012 – 2014
University of Virginia
Bachelor of Science
Undergraduate

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