CASE STUDY
Creating an Engaging Fantasy Baseball Game with a Unique Twist
A high-engagement fantasy baseball mobile gaming platform built on Flutter, Firebase, and a .NET live sports data service — featuring real-time MLB game ingestion, social group leagues, and a unique “Cup” jackpot reward mechanic.
Cognic BaseCup
Search MLB games, user leagues or player stats…
Live MLB Feed Processing & The Cup Game Economy
100k+
Active Gaming Users
< 1 Sec
Live Play-by-Play Ingestion
4.8★
App Store User Rating
3.4x
Higher User Session Time
| Game Matchup | Live MLB Play Event | Fantasy Point Impact | The Cup Jackpot Pool | Leaderboard Leader | Confidence |
|---|---|---|---|---|---|
| NY Yankees vs. Boston Red Sox | Aaron Judge 2-Run Home Run (420 ft) | +45 Pts Awarded | undefined | +150 Pts to The Cup | 100% |
| LA Dodgers vs. SF Giants | Shohei Ohtani Strikeout Pitch | +12 Pts Awarded | undefined | Pool Active | 100% |
| Chicago Cubs vs. St. Louis Cardinals | Grand Slam in 7th Inning | +80 Pts Awarded | undefined | +300 Pts to The Cup | 100% |
| Houston Astros vs. Texas Rangers | Double Play 6-4-3 | +8 Pts Awarded | undefined | Pool Active | 99% |
| Atlanta Braves vs. NY Mets | Walk-Off Game Winner | +60 Pts Awarded | undefined | The Cup Winner Awarded | 100% |
100,000+ Active Sports Fans
Engaged users competing daily across custom social groups
< 1 Second Live Play Latency
Real-time sports API ingestion updating fantasy scores instantly
The “Cup” Unique Jackpot Mechanic
High-stakes point pool awarded to match winners on special plays
Flutter & Firebase Ultra-Responsive Mobile App
Smooth 60fps animations and real-time database syncing on iOS and Android
What is the Fantasy Baseball “Cup” Mobile Game?
The Fantasy Baseball mobile game is an interactive, real-time sports gaming application built on Flutter, Firebase, and a .NET live sports data service where baseball fans create social groups, compete during live MLB games, and accumulate points—featuring a proprietary “Cup” mechanic where special plays (like home runs) funnel points into a jackpot awarded to the match winner.
A Smarter Way to Build Interactive Sports Gaming Apps
The Challenge
Building an engaging, real-time sports gaming app from scratch with low-latency live game updates and a proprietary points economy.
The Solution
Full-stack engineering combining a Flutter mobile client, Firebase real-time database, and a .NET sports API ingestion service.
The Outcome
Scaled past 100,000 active users, achieved 4.8★ App Store rating, and drove 3.4x higher session engagement than traditional fantasy apps.
The Challenge
Sports gaming startups face high technical hurdles delivering sub-second live play synchronization while maintaining smooth 60fps mobile gaming animations.
Building a new consumer sports gaming mobile app from zero to production launch
Ingesting high-frequency live MLB play-by-play data with sub-second latency
Designing a proprietary points economy with the signature “Cup” jackpot mechanism
Supporting real-time social group leagues, friend challenges, and in-game banter
Delivering smooth, native-feel animations and responsive UI across both iOS and Android
Handling sudden traffic spikes when popular MLB playoff games and home runs occur
Maintaining complete transactional accuracy in user point balances and game settlements
Optimizing cloud backend hosting costs under rapid consumer user base growth
Traditional Fantasy Apps vs. Cognic Real-Time Gaming Engine
| Workflow Stage | Traditional Manual Workflow | Cognic AI-Powered Engine |
|---|---|---|
| Live Game Latency | Delayed score updates lagging minutes behind live television broadcasts | Sub-second real-time play-by-play synchronization directly via WebSocket feeds |
| Game Engagement | Passive set-and-forget rosters checked once a week | Live interactive play with dynamic point swings and the signature “Cup” pool |
| Mobile Experience | Clunky hybrid web views with laggy scrolling and sluggish touch response | Native Flutter 60fps client with custom animations and tactile micro-interactions |
| Social Group Play | Impersonal public leagues with disconnected communication | Private social circles, custom wager rules, and integrated live match chat |
| Backend Scalability | Server crashes during peak 9th-inning moments and grand slams | Serverless Firebase and scalable .NET microservices absorbing massive traffic spikes |
| Settlement Speed | Overnight batch processing to calculate winners and points | Instant automated game settlement the moment the final out is recorded |
The Fantasy Gaming Engine Architecture
Three core pillars connecting live sports feeds, game logic, and mobile UI.
01
.NET Live Sports Data Service
Connects to official sports data providers, filtering and normalizing live MLB play-by-play feeds in sub-seconds.
• Sub-second sports API parser
• Play event classifier (HR, Strikeout, RBI)
• High-throughput WebSocket broadcaster
→
02
The “Cup” Jackpot & Points Economy
Calculates points awarded for positive plays, deducts for strikeouts, and pools points into the jackpot “Cup”.
• Dynamic points calculation engine
• The Cup jackpot pooling rules
• Instant post-game point settlement
→
03
Flutter Mobile & Firebase Real-Time Tier
Renders smooth, high-fidelity gaming screens and synchronizes live leaderboards instantly across mobile devices.
• Cross-platform Flutter iOS/Android app
• Firebase Realtime Database sync
• Interactive push notification triggers
→
Sub-Second Live Data
Real-time MLB play-by-play sync
The “Cup” Mechanic
Unique gamified jackpot point pool
Flutter 60fps UI
Fluid animations on iOS and Android
Gaming Platform Architecture & Pipeline
A real-time, low-latency sports gaming platform pipeline.
1 Sports Data Ingestion
› Official Sports Data API
› .NET Ingestion Microservice
› Play Event Normalizer
› Timestamp Synchronizer
› Low-Latency Cache
2 Points & Cup Engine
› Positive / Negative Scoring
› The Cup Jackpot Pool Logic
› Group League Matcher
› Tie-Breaker Algorithms
› Settlement Engine
3 Firebase Real-Time
› Firebase Realtime Database
› Cloud Firestore Profiles
› Live WebSocket Feeds
› Push Notification Triggers
› User State Sync
4 Flutter Client Tier
› Flutter (Dart) Mobile App
› Custom Animations Engine
› Social Group League Hub
› Live Match Leaderboards
› App Store / Play Store
From Live MLB Home Run to Awarded Cup Jackpot
A sub-second, real-time gaming transaction journey.
Live MLB Play
→
.NET Service
→
Points Calculation
→
The Cup Pool Sync
→
Firebase Broadcast
→
Jackpot Winner
Gaming Architecture & Interactive Features
Cutting-edge engineering innovations powering live sports entertainment.
Sub-Second Play-by-Play Parser
Translates high-frequency XML/JSON sports feeds into formatted gaming events in milliseconds
The Proprietary “Cup” Jackpot Economy
Pools bonus points on rare events (Grand Slams, No-Hitters) to create thrilling game endings
Reactive Flutter UI Architecture
Maintains buttery smooth 60fps animations even while receiving thousands of live WebSocket score updates
Social Group League Matchmaking
Allows friends to create custom private rooms, set custom point multipliers, and compete head-to-head
Instant Automated Match Settlement
Awards final points, calculates league rankings, and sends celebration push alerts the moment the game ends
Game Operations & Live Match Telemetry Console
Game administrators monitor live MLB match feeds, inspect active league point pools, and review settlement transactions.
| Matchup | Live MLB Play Event | Point Allocation | The Cup Jackpot Status | Action | ||
|---|---|---|---|---|---|---|
| NY Yankees vs. Boston Red Sox | Aaron Judge 2-Run HR (420 ft) | +45 Pts Awarded | undefined | +150 Pts in The Cup | 100% | |
| LA Dodgers vs. SF Giants | Shohei Ohtani Strikeout Pitch | +12 Pts Awarded | undefined | Cup Pool Active | 100% | |
| Chicago Cubs vs. St. Louis Cardinals | Grand Slam in 7th Inning | +80 Pts Awarded | undefined | +300 Pts in The Cup | 100% | |
| Atlanta Braves vs. NY Mets | Walk-Off Game Winner | +60 Pts Awarded | undefined | The Cup Settled | 100% |
Gaming Security & Data Integrity
Robust cloud controls safeguarding user accounts and points transactions.
Firebase App Check
Secure WebSocket TLS
Encrypted Point Ledger
Anti-Cheat Validation
AES-256 Bit Encryption
Immutable Game Logs
Technology Stack
Key technologies powering the production deployment.
Flutter (Dart)
Firebase Realtime Database
C# .NET Core Service
Sports Data APIs
Cloud Functions
Google Cloud Platform
iOS / Android SDKs
TailwindCSS
What Changed
Key operational and efficiency improvements.
Successfully launched from concept to over 100,000 active mobile sports gaming users
Delivered sub-second live play synchronization matching live television broadcasts
Signature “Cup” mechanic drove 3.4x higher user session times compared to traditional apps
Achieved a 4.8-star rating on the Apple App Store with viral organic friend referrals
Zero server downtime recorded across major MLB season opening and playoff surges
Built for SportsTech Founders & Gaming Leaders
Engineered for startup founders, gaming product managers, and mobile app architects.
SportsTech Startup Founders
Bring innovative mobile gaming concepts to market rapidly with scalable, robust cloud architectures.
Mobile Gaming Product Managers
Maximize user retention and daily active engagement through thrilling real-time mechanics.
Full-Stack Mobile Architects
Deliver sub-second data streaming and smooth 60fps Flutter user experiences.