Sportviz Toolkit — Weighting Module
Effortless weigh-in management for combat sports events
The Problem
Weigh-ins at combat sports events are chaotic. Hundreds of competitors need to be weighed, verified against weight category limits, and documented — often within a tight window. Organizers juggle paper lists, manual spreadsheets, and disconnected scales, leading to long queues, data entry errors, missed overweight athletes, and no paper trail for disputes. Traditional setups require someone to read the scale, someone else to write the number down, and a third person to check it against category limits. It's slow, error-prone, and stressful for everyone involved.
The Solution
The Weighting module of Sportviz Toolkit is a purpose-built digital weigh-in station that turns any laptop and a consumer Bluetooth scale into a professional-grade system. It connects directly to Xiaomi Mi Smart Scales, validates weights against category limits in real-time, and prints official receipts — all from a single browser tab. No special hardware. No expensive proprietary systems. Just open a browser and start weighing.
Key Features
Bluetooth Scale Integration
Connect wirelessly to Xiaomi Mi Scale V1, Mi Body Composition Scale V2, or Xiaomi Smart Scale S200 via Web Bluetooth. Weight appears in real-time as the athlete steps on. Once stable, it's automatically locked in — no manual entry, no transcription errors.
Real-Time Weight Validation
Every competitor is registered with one or more weight categories. The moment a weight is entered — manually or via Bluetooth — the system instantly shows whether the athlete passes, is overweight, or underweight. Color-coded indicators make status unmistakable at a glance.
Instant Receipt Printing
Print an official weigh-in receipt with one click. Supports standard printers (via browser) and thermal receipt printers (via ESC/POS over Web Serial). Each receipt includes event name, competitor details, measured weight, pass/fail status, and a timestamp.
Lightning-Fast Competitor Lookup
Find any competitor among hundreds in milliseconds. Full-text search with fuzzy matching handles misspelled names, partial queries, and transliteration differences. Navigate entirely by keyboard — no mouse needed.
Passport / ID Scanning (MRZ)
For international events, press F3 to activate the camera and scan the Machine Readable Zone on a passport or ID card. The system extracts the athlete's name and finds their record automatically. One scan, one match, zero typing.
Live Dashboard & Statistics
The toolbar shows real-time progress — how many competitors have been weighed, how many are overweight or underweight, and overall completion percentage. Filter by gender for separate weigh-in sessions.
How It Works
Type a name or scan a passport
Athlete steps on the Bluetooth scale (or enter weight manually)
Instant pass/fail shown for all categories
One click prints the official receipt
Move to the next competitor
Before vs. With Sportviz Toolkit
Sportviz Toolkit — Because weigh-ins should take minutes, not hours.
Interested in Sportviz Toolkit?
Let's talk about how it can work for your event.
