Tennis  ·  Racket Sports  ·  Biomechanics
Wearable biomechanics platform for coaches

Precision coaching from first swing.

Sports-lab grade biomechanical analysis — delivered to every coach on the court.

SwingFlux is a 4-IMU wearable sensor system that captures 50+ biomechanical parameters in real time. No camera required. Session-ready in minutes. Your coaching instincts, now backed by data — and amplified by AI that knows each player's unique mechanics and improvement history.

PARAMETERS50+
MOTION SENSORS4
SAMPLING>500Hz
AI INSIGHTSPer player
Tennis player with SwingFlux elbow sleeve and coach reviewing biomechanical analysis on tablet
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Coach + player with sleeve on court
SWINGFLUX IN ACTION
Trusted by
ITF Ranked Players · USPTA Certified Coaches · Tennis Academies · Sports Physiotherapists · University Sports Programs
Why SwingFlux

You already see the problems. Now measure them.

As a coach, you know exactly what's wrong with a player's serve or forehand — but until now you've had no way to prove it with data, track it over time, or show players the precise numbers.

  • You can see a player's elbow drops too early — but not by exactly how many degrees
  • Competitive players and parents expect data, not just visual feedback
  • Racket sensors measure the racket only — nothing about the arm mechanics driving it
  • Sports-lab biomechanics costs $120,000+ to set up — out of reach for club coaching
  • There's no objective way to confirm a drill is actually working
SwingFlux in use on court
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coach reviewing data on court
/ 01
SwingFlux Starter Kit
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Wear the sleeve

Clip on the 4-IMU sensor kit in minutes. Works with any racket, any court. No cameras or lab setup needed.

/ 02
SwingFlux analytics dashboard
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See the data live

Real numbers for every shot: elbow angle, shoulder rotation, forearm pronation, racket lag — the full kinetic chain in real time.

/ 03
SwingFlux progress tracking
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Track improvement

Week-by-week biomechanical progress. Show players exactly what's improving — coaching that's impossible to argue with.

Support the coach, not replace the coach. Every metric has a direct coaching application.
Workflow

From first swing to coaching insight.

From wearing the sleeve to a full biomechanical coaching report — in a single session.

SwingFlux workflow: record shots, analyze performance, track progress
/ 01
Record shots

Wear the sleeve, hit your shots. 500Hz sensor data captured automatically.

/ 02
Analyse performance

50+ biomechanical parameters computed instantly across every shot.

/ 03
Track progress

Session-over-session trends. PDF reports for players and parents.

/ 04
AI
Personalised AI insights

AI reads each player's full history across all 50+ parameters and generates precise, personalised coaching instructions — unique to that player, that session.

The product

Hardware + software working as one.

A wearable sensor kit that captures what coaches can't see, paired with an analytics platform that turns that data into actionable coaching intelligence.

SwingFlux 4-IMU sensor system diagram — upper arm, forearm, racket handle, racket head
PRODUCT DIAGRAM

IMU Elbow Sleeve

IMU 1 (upper arm) + IMU 2 (forearm). Captures shoulder rotation, elbow extension and forearm pronation.

Racket Sensor Modules

IMU 3 (handle) + IMU 4 (throat/head). Measures racket speed, impact vibration, lag and whip effect.

Mobile & Desktop App

Real-time dashboard on phone, tablet and desktop. Shot breakdown, player comparison, AI drill recommendations.

500Hz Data Capture

All 4 IMUs sample at 500Hz simultaneously — capturing arm-to-racket lag, impact timing and pronation speed.

Multi-Sports Patent

IP protection covering hand + racket sensor based biomechanical analysis. Filed in the Netherlands.

Coach-First Design

Every metric has a direct coaching application. Multi-player dashboard, session reports, academy benchmarking.

AI Coaching Intelligence

The coaching brain that knows every player.

SwingFlux doesn't just measure biomechanics — it learns them. After every session, an AI trained on that player's unique 50+ parameter profile analyses their specific weaknesses, improvement trends and response to drills. The result is personalised coaching intelligence that gets more valuable the more it is used.

AI insights compound over time — the more sessions, the sharper the intelligence
Built around each individual player

The AI doesn't give generic coaching tips. It reads that specific player's full biomechanical history — every parameter, every session — and generates instructions that account for their unique strengths, weaknesses and how they respond to specific drills.

Tracks improvement across 50+ parameters

Every metric — elbow extension speed, forearm pronation timing, racket lag, trunk rotation, impact consistency — is tracked session over session. The AI identifies which parameters are improving, which are plateauing and which are regressing, and adjusts its recommendations accordingly.

Prioritised, actionable drill instructions

Not a list of observations — actionable instructions. The AI ranks the top 3 things to work on this session, explains why in plain language, and prescribes specific drills with expected impact on measurable parameters. Coaches can hand this directly to a player.

Knowledge that accumulates — your most valuable long-term asset

Over time, the AI builds a rich biomechanical profile for every player in your academy. As more player data is collected and the AI is tuned, these personalised coaching models become increasingly precise — and increasingly difficult for any competitor to replicate.

Presented in coach language, not data science

Every AI output is written for coaches, not engineers. Clear summaries, plain English drill prescriptions, and trend charts that make sense at a glance — even for coaches with no data background.

SwingFlux AI — Player insight report
Maria R.  ·  Forehand drive
Session 14 of 14  ·  8 weeks tracked
AI INSIGHT
Key parameters — 8-week trend
Racket head speed
88% +11%
Hip–shoulder separation
72% +4%
Core transfer efficiency
61% −2%
Impact timing consistency
79% +8%
Elbow extension speed
84% +6%
Swing plane consistency
55% −5%
AI coaching insight — personalised for Maria
Root cause identified

Maria's core transfer efficiency has dropped for the 2nd consecutive session (now −19% below benchmark) despite strong racket-head speed gains. Historical data shows this pattern appeared in sessions 6–8 and was resolved by hip-lead sequencing work. The current swing plane inconsistency (±6° variance, worsening) is a symptom of the same issue — she is initiating trunk rotation before the hip drive is complete.

Drill prescription

Priority 1: Hip-lead shadow swings — 3 sets × 15 reps, focus on hip clearing before shoulder unwind. Expected impact: +8–12% core transfer within 3 sessions based on Maria's Session 7–9 response data.

Today's session plan
Hip-lead shadow drill3 × 15 · Priority 1
Cross-court topspin feed20 balls · Monitor plane
Full-swing video reviewVs. Session 7 baseline
Data input
50+ biomechanical parameters captured per session across all shot types. The AI has more precise input data than any coach has ever had access to before.
Intelligence layer
AI trained on each player's individual history — not generic models. The longer the relationship, the more precisely the AI understands that player's mechanics and how they adapt.
Compounding value
As SwingFlux accumulates real player data and the AI is tuned, these personalised coaching models become SwingFlux's most defensible long-term competitive advantage.
Biomechanical intelligence

50+ parameters coaches have never had before.

SwingFlux measures what the human eye simply cannot. Every shot type broken down into 8 specific biomechanical metrics, plus a cross-cutting impact quality layer.

50+
Shot-specific metrics across serve, return, forehand, backhand
12+12
Metrics — contact timing, sweet-spot, power transfer, racket positioning
4
IMU sensors tracking the full kinetic chain simultaneously
500Hz
Sampling rate for sub-millisecond precision timing data
SwingFlux full parameters framework — all 50+ biomechanical metrics by shot type
SwingFlux biomechanics metrics framework detail
Competitive advantage

No similar product exists in the market.

Full body + racket combined
Only SwingFlux analyses the arm-to-racket kinetic chain simultaneously. No competitor offers this.
AI personalised insights UNIQUE
Per-player AI coaching intelligence built on 50+ parameters and full session history. Gets smarter with every session — impossible to replicate without the data.
No camera required
Works on any court, in any lighting, without setup. Video AI platforms require cameras and only estimate biomechanics.
Same hardware, many sports
Golf, cricket, badminton, baseball and squash with software-only changes. TAM expands to $750M–1.2B.
Coach-first workflow
Designed to support the coach, not replace them. Every screen and metric has a direct coaching application.
75% gross margin
~$105 production cost per starter kit. Hybrid hardware + subscription model generates recurring revenue.

Market opportunity

22% CAGR sports technology market growing to $61.72B by 2030.

Tennis TAM
$140 Million USD addressable market for tennis biomechanics analysis
Racket sports TAM
$750M–1.2B across golf, cricket, badminton, baseball and squash — same hardware kit
SwingVision benchmark
SwingVision (video only, racket-only analysis) already generates $4M+ annual revenue — SwingFlux goes far deeper
IP protection
Broad patent filed for hand + racket sensor based biomechanical analysis (Netherlands)
AI as a moat
Personalised AI coaching intelligence — trained on each player's biomechanical history — becomes more valuable and harder to replicate with every session. The data advantage compounds.
Hardware + subscription

The right kit for every coaching level.

One-time hardware purchase plus a low monthly subscription. ~$105 production cost per starter kit with ~75% gross margin from day one.

SwingFlux Starter Kit for individual coaches
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Starter Kit

For individual coaches

$499

1× elbow sensor sleeve · 1× racket strip with 2 IMU sensors · wireless charging dock · mobile app · 32 biomechanical parameters · AI personalised coaching insights included.

Subscription: $10 / month
Order Starter Kit
SwingFlux Pro Analytics Kit for high-performance coaching centers
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Pro Analytics Kit

For performance centers

$5,000 – $12,000

Full multi-player sensor array · dual charging docks · premium accessories · enterprise dashboard · video sync · exportable PDF reports · API / data export access · Advanced AI coaching intelligence with full parameter history and exportable player profiles.

Subscription: $50 / month
Contact sales
Expansion roadmap

Built for tennis. Ready for all swing sports.

The same SwingFlux hardware kit works across all swing-based sports with software-only changes. TAM expands from $140M to $750M–1.2B.

AVAILABLE NOW
Tennis — The Foundation Sport

Full serve, forehand, backhand and return analysis. ATP/WTA benchmarks built in. Starter, Academy and Pro kits available to order.

Golfer wearing SwingFlux elbow sleeve
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Coming soon

Golf

60M+ active golfers globally

Same hardware
Cricket batsman wearing SwingFlux sleeve
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Coming soon

Cricket — Batting

2.5B+ fan / player ecosystem

Same hardware
Cricket bowler wearing SwingFlux sleeve
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Coming soon

Cricket — Bowling

Bowling action mechanics

Same hardware
Badminton player wearing SwingFlux sleeve
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Coming soon

Badminton

300M+ players worldwide

Same hardware
Squash player wearing SwingFlux sleeve
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Coming soon

Squash

20M+ players worldwide

Same hardware
Baseball batter wearing SwingFlux sleeve
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Coming soon

Baseball

65M+ players globally

Same hardware
Founding team

The people behind the platform.

Built by a team combining engineering, sports science and clinical expertise — backed by ExcelTech OÜ's 60+ person engineering team.

Kosala — Founding CEO of SwingFlux
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Founding CEO

Kosala

Engineer · ExcelTech OÜ / DiabSense. Full-stack product & engineering leadership.

Dr. Dilshan — Co-Founder of SwingFlux
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Co-Founder

Dr. Dilshan

COO, Lanka Hospital Labs · Co-Founder, Athlos Performance Labs.

Thanura — Co-Founder of SwingFlux
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Co-Founder

Thanura

Sports Scientist · Founding Director, Athlos Performance Labs.

Strategic Partners
Jayamini — Sports Science Specialist
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Sports Science Specialist

Jayamini

Edge Hill University, UK

Sanjaya Mohottala — VC, Founder & Mentor
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Strategic Partner

Sanjaya Mohottala

VC, Founder & Mentor

Engineering Development Partner
ExcelTech OÜ — www.exceltch.com
20+
Core engineers
60+
Full team
30+
Projects/year
16+
Years in Development

Ready to revolutionize how tennis is coached?

Join our pilot program. Priority access to first production kits.

Join the pilot program Email us directly
Get started

Join the pilot program.

We are running our pilot program with coaches and academies now. Get priority access to first production kits when they ship.

Individual coaches Tennis academies Performance centers Sports physiotherapists
  • Starter Kit from $499 + $10/month subscription
  • Academy Kit from $1,500 — multi-player dashboard included
  • Pro Kit from $5,000 — enterprise dashboard + API access
  • Response within 24 hours
Contact
kosala@swingflux.com +31 629 377215  ·  +94 775 555 174

Request pilot access