Project Overview
The client required a dependable, user-friendly Live tab — the engine room for tagging matches — that supports rapid event logging, automatic possession handling, minute-accurate substitution tracking, instant live stats, and resilient pause/resume behavior even if the browser or network fails.
- Run a match clock and log events with hotkeys/buttons.
- Automatically open/close possessions based on events.
- Track substitutions and calculate minutes played precisely.
- Provide instant live stats (shots, frees, puck-outs, PPP, etc.).
- Save progress, pause/resume matches, and validate data (half-time / full-time QA).
Why CnEL India Was the Right Choice
Domain expertise
We combine deep sports tagging UX knowledge with robust engineering practices to deliver low-latency, accurate match tagging tools that scale across competitions and operators.
- Proven experience building real-time event-driven interfaces.
- Accurate timekeeping and substitution minute calculations.
- Design for keyboard-first workflows to maximize speed and accuracy.
Reliability & Resilience
Our implementation focuses on preserving data integrity under failure conditions: network drops, browser crashes, and reloads.
- Automatic state recovery on reload with open possession preservation.
- Draft Save for manual mid-game snapshots.
- Clock reconciliation logic ensures no events or minutes are lost.
Operational Advantages
Uptime-focused
Fast tagging
Accurate minutes
Solution — Live Tab Features & UX
Pre-Match Checklist
A modal prompts the operator to confirm pre-match details before tagging begins—ensuring lineups, match metadata, and configuration are correct. This reduces post-game reconciliation and supports automated validation rules.
Key Panels & Components
The Live tab surface exposes all essential information in an organised layout using dropdowns, compact components and keyboard shortcuts:
- Lineups — quick player lookup, substitutions and minute counters.
- Event Feed — chronological, searchable event log with inline edit.
- Live Stats — instant aggregation for shots, frees, puck-outs, PPP and custom metrics.
- Mini Pitch — visual representation for positional context and fast selection.
- Match Clock — authoritative clock that survives reloads and reconcilies on reconnect.
- Live Scoreboard — concise scoreboard tied to events and validations.
- Possession Tracking — auto-open/close possessions from events, with manual override.
- Puck-out / Kick-out Analysis — specialized panel for sequence tagging and outcome analysis.
Hotkeys & Fast Interaction
Keyboard-first design reduces error and increases tagging throughput. Common events are mapped to hotkeys; contextual menus and focused input patterns prevent accidental mis-tags.
QA, Validation & Reporting
Quality checks and validations are performed automatically at half-time and full-time to surface inconsistencies (missing substitutions, overlapping possessions, improbable minute counts). The system generates a summary report highlighting items requiring manual review.
Validation Examples
- Substitution minute totals vs. recorded play minutes.
- Possession overlaps / simultaneous possessions flagged for review.
- Event timestamp gaps / duplicate events.
Pause & Resume — Fail-Safe Workflow
Real-world matches are messy. CnEL India built the Live tab to be resilient to interruptions:
- Open possession persistence: If the browser closes or the app crashes, the active possession remains active and is reconciled on reload.
- Clock reconciliation: On reload or reconnect the match clock resumes correctly — no lost time.
- Event durability: Events already recorded are preserved; incoming events are queued and persisted when connectivity returns.
- Draft Save: Operators can manually save a mid-game snapshot which can be reloaded and continued later.
Implementation Highlights
- Event-driven architecture with local persistence and server-side reconciliation.
- Optimistic UI updates with strong conflict-resolution rules for simultaneous edits.
- Lightweight state sync protocol to minimize bandwidth while guaranteeing correctness.
- Comprehensive telemetry and audit trail for every action to support QA and post-match review.
Client Feedback
“CnEL India transformed our live tagging workflow. Their Live tab is fast, intuitive and worry-free — even when connection problems hit during a high-stakes match. The accuracy of minute tracking and the fail-safe resume features removed a major operational headache for our team. Delivery was punctual and the team’s communication throughout was exceptional.”
— Head of Operations, Client
Why This Delivered Value
- Operational reliability: Reduced post-match corrections and fewer lost events.
- Faster tagging throughput: Keyboard-first design and hotkeys cut tagging time per event.
- Higher data quality: Built-in validations and audit trails improved downstream analytics.
- Reduced training time: Familiar, compact UI patterns make onboarding quicker for new taggers.