AccuTennis with Adam Sher

Summary

Adam Sher, co-founder of AccuTennis, explains the company’s camera-based court technology system — developed originally to help his partner Dave’s son analyze his game without requiring a coach to attend every session. The system uses cameras mounted on net posts and behind baselines to automatically call lines, tag shots by type and placement, strip dead time from match video, and deliver real-time feedback through a courtside LED display. Sher describes a subscription-based pricing model designed for club-level facilities, where courts equipped with AccuTennis can charge coaches $5–$12 more per hour for lessons. The interview, recorded at the WTCA conference, explores how the technology addresses key pain points in junior development: cost-prohibitive video review, cheating in matches, parent-coach communication gaps, and players practicing without structure when coaches aren’t present.

Guest Background

Adam Sher is co-founder of AccuTennis, a court intelligence platform developed in partnership with Dave (last name not given), whose son’s development needs sparked the original idea. Sher is himself a competitive recreational player who brought a strong understanding of club-level tennis economics to the product design. He presented AccuTennis at the WTCA (World Tennis Coaches Association) conference alongside Tim Beighton. At the time of recording, AccuTennis was in early commercialization and pursuing ITF sanctioning approval.

Key Findings

1. System Architecture: Cameras, Tracking, and Real-Time LED Display

The physical product consists of metal rectangle housings — each containing 3–4 cameras — mounted on net posts (four rectangles per net post), plus three camera arrays behind each baseline for ball tracking. A removable LED display mounted above the net post is the only visible component players interact with during play. The system operates on a self-contained local network (no internet required on court) and syncs automatically to cloud storage when connectivity is available.

2. Accuracy Comparable to Human Eye, Seeking ITF Sanctioning

AccuTennis achieves line-call accuracy “slightly better than the human eye” — approximately 15.5mm margin of error at the hardest-to-see parts of the court (e.g., far baseline corners). Hawkeye achieves ~2.5mm on average. Sher acknowledges differential accuracy by court zone. At the time of the interview, AccuTennis was beginning the ITF approval process, which requires hosting ITF testers at a facility for a battery of tests covering accuracy, data handling, coaching interaction rules, and display management.

3. Lesson and Practice Set Use Case as Core Business Model

AccuTennis is designed primarily for lesson and self-practice settings, not match officiating — though match officiating is a secondary use case. During lessons, the system provides real-time feedback on the LED (shot type, placement, speed, spin, net clearance). After a session, coaches and players can review auto-edited video where dead time is stripped and shots are tagged and searchable. A practice set between a player and a hitting partner becomes a fully analyzed, searchable data set — without a coach needing to be present or spend time watching raw video.

4. Pricing Model: Monthly Subscription, Value-Add for Clubs

AccuTennis charges facilities a monthly subscription. Facilities can pass the cost to customers by charging $5–$12 more per hour for lessons or court reservations on AccuTennis courts. Sher’s near-term goal was to reduce hardware installation cost to zero (subsidized by subscription revenue), making it viable for mid-size clubs that cannot afford $10,000+ per court systems (his primary competitor’s price point). The model creates a new income stream for coaches: remote video review fees for matches played when the coach isn’t present.

5. Cheating and Line-Call Disputes in Junior and College Tennis

Both Sher and host Lisa Stone identify cheating and disputed line calls as a significant problem in junior and college tennis. Sher notes that the existing challenge system at some college programs (e.g., USC, which uses a competitor’s system) can still feel contentious in practice. AccuTennis envisions an automated, trusted system that simply calls lines without disrupting match flow — reducing emotional confrontations by removing human interpretation from close calls.

6. Cloud Sync Enables Remote Recruiting Video and Parent Access

Because session data syncs to the cloud, players can share annotated match video links directly with college coaches as recruiting material — video where dead time is removed and shots are tagged, making it easy for coaches to search for specific moments (e.g., serving patterns, rally behavior, footwork under pressure). Parents watching from home, or a private coach reviewing a college athlete’s training remotely, can access the same data.

7. Parent-Coach Communication and Accountability Infrastructure

Sher and Stone discuss how the data layer creates a neutral “arbiter” in parent-coach relationships. Instead of subjective reports on progress, coaches can show parents shot placement charts comparing performance six months apart, or video evidence of emotional regulation improvement on court. This reduces parent skepticism about coaching value and gives coaches evidence-backed conversations that extend client relationships.

8. NCAA Contact Rules and Off-Court Coaching

Stone raises a forward-looking question: could AccuTennis data watched by a college coach while a player practices alone on court constitute an NCAA recruiting contact violation? Sher says he hadn’t considered it but immediately added it to the product roadmap. The thread identifies a real regulatory gap — the system could enable continuous coach-player feedback loops that technically circumvent on-court contact hour limits.

Actionable Advice for Families

• Players preparing for college recruiting should use match video tools (AccuTennis or similar) to produce shareable, annotated highlight clips — college coaches want to see point construction, not a raw two-hour match recording
• Parents should look for club programs with data-backed progress reporting; subjective coach updates are insufficient for the financial investment being made in junior development
• Families evaluating academies should ask whether the facility uses court technology that allows supervised self-practice, extending training hours without proportionally increasing coaching costs

INTENNSE Relevance

• Court technology infrastructure: AccuTennis’s architecture — embedded cameras, automated line calling, real-time LED feedback, cloud-synced video — is directly applicable to INTENNSE’s mic’d-coach and analytics vision. INTENNSE courts could use similar systems to generate broadcast-quality match data and officiating support without line judges
• One-serve format alignment: AccuTennis’s handling of “no-ad” scoring, tiebreaks, and various format configurations at the practice level aligns with INTENNSE’s format innovation goals — the technology is format-agnostic and can be configured for alternative scoring systems
• Coach income supplementation: The model where coaches earn additional income by reviewing auto-captured video remotely (without being on court) maps directly onto how INTENNSE coaching staff could monetize player development content — reviewing player data between matches as a paid service
• Broadcast and fan engagement: The auto-edited, dead-time-stripped match video with shot annotations is a broadcast production tool as much as a coaching tool. INTENNSE could use similar infrastructure to produce efficient, data-tagged broadcast packages for streaming partners
• Eliminating officiating disputes: AccuTennis’s vision of fully automated, trusted line calling directly addresses one of tennis’s biggest fan experience problems — contentious line disputes. For INTENNSE’s entertainment-first format, removing disputed calls via technology reinforces the energy and flow the league is built around
• Pathway tracking: The longitudinal shot placement and behavioral data AccuTennis accumulates over time is exactly the kind of data INTENNSE would want for player development tracking — especially if the league builds a development pipeline feeding players from junior academies through the college level and into professional play

Notable Quotes

“Our theory is that the most successful use is in lesson settings, private, semi-privates, and players just hitting on their own using the system and playing games and drills on it.”

“Adam, I know you’re frustrated with me today, but here’s the evidence that it’s actually paying off and you’re getting better, and here it is for every stroke.”

“You can send a link to a full best out of three match that’s only a 20 minute video where the shots are annotated.”

“If you can provide them a video stream, that could be a good middle ground — the parents are in the lobby and they’re kind of far away, but they can see what’s happening on court.”

“Coaches can charge anywhere from five to twelve dollars more an hour for privates and semi privates” on an AccuTennis court.