Overview
Organizing a sports or esports tournament typically requires 5–6 separate tools: Google Form for registration, manual bank transfers for payment, Excel for bracket management, Zalo/Telegram for result announcements, and a TV screen for rankings. The result: wasted time, easy mistakes, and a poor player experience.
Ventra Rocket built an end-to-end platform that handles the complete tournament lifecycle in a single system.
Challenge
Sports tournaments have strict real-time requirements: match result updates must appear on the leaderboard instantly (under 1 second), with no delays while hundreds of spectators are watching.
Payment is the biggest friction point — Vietnamese participants prefer QR code payments (VNPay, MoMo, Internet Banking), but manually confirming payments is time-consuming. This needed full automation, even when multiple teams pay simultaneously.
Solution
Automated Flow: Registration → QR Payment (VNPay/MoMo/Bank transfer) → Auto Confirmation → Bracket Generation → Result Entry → Live Update → Real-time Rankings → Notification.
WebSocket Real-time: The entire leaderboard and results are synced via WebSocket — when a referee enters a result, all display screens and spectator phones update in under 500ms.
Automated QR Payment: Integration with VNPay, MoMo, and Internet Banking via webhooks — the system confirms payment immediately upon receiving the bank webhook, sends SMS/Telegram confirmation to the player, and unlocks the registration slot.
Bracket Engine: Auto-generates brackets in multiple formats: single elimination, double elimination, round-robin, and Swiss. Handles seeding, bye rounds, and tiebreaker rules.
Live Scoring for Spectators: Progressive Web App lets spectators follow all matches, rankings, and schedules live — no app install needed, just scan a QR code.
Features Highlight
QR Payment → Instant Notify → Auto Bracket → Live Scoring → Real-time Ranking Board → Timeline & Schedule
Results
- 50+ tournaments successfully organized on the platform
- 10,000+ players participated through the system
- 99.9% uptime — no incidents have disrupted a running tournament
- Tournament preparation time reduced from 2 days to 2 hours
- Zero result discrepancies compared to previous manual entry
Technology
Next.js 15 for the web platform. WebSocket (Socket.io) for real-time sync. VNPay + MoMo + Banking API for QR payments. PostgreSQL for tournament data. Redis for pub/sub real-time events. Vercel Edge Functions for global low-latency.