Case study · Sports tech · white-label pools and leagues

Chutaí League & Chutaí Gamão

Comprehensive social betting, sports prediction, and fan engagement ecosystem. Engineered to transform match-watching into a competitive, community-driven gamified experience — featuring a proprietary ChuteCoins virtual economy, custom private leagues between friends, real-time pari-mutuel odds calculation, a physical prize redemption marketplace, and official club partnership with Gama (chutaigamao.com.br) for Estádio Bezerrão VIP experiences.

Status
In use
Context
Chutaí & S.E. do Gama
My Role
Tech Lead & Full-Stack Architect
Stack
Next.js, React, TypeScript, Realtime DB, Tailwind
Core Focus
Pari-Mutuel Pools & Fan Economy
Live site
chutaigamao.com.br ↗
Three Chutaí screens: prediction feed, league creation and the rewards store.
[Re-capture at 2× — the current source is 1024 px wide]

The challenge

Build an app that brings a club and its fans closer through prize pools and challenge leagues. The direction was a prediction market along the lines of Kalshi, with the necessary adjustments.

Key engineering decisions

Pari-Mutuel Engine & ChuteCoins Virtual Economy

Dynamic odds calculation engine where Yes/No odds adjust in real time according to pool liquidity. Guarantees mathematical solvency for the platform's ChuteCoins virtual currency while preserving high-stakes betting excitement without house liability.

Custom Leagues & Social Peer Competition ('Crie sua Liga')

Architecture enabling users to instantly launch private and corporate leagues (Liga do Achismo, Resenha, Torcidas). Each community features its own real-time leaderboard, dedicated prediction feeds, and participant rosters, driving high daily retention and organic viral growth.

Physical Prize Marketplace & Real-World Redemption

Integrated e-commerce catalog with dynamic ZIP/CEP freight calculation and instant checkout using ChuteCoins balances (appliances, smart home devices, dining vouchers). Closes the gamification loop by translating digital sports predictions into tangible real-world value.

A white-label engine for pools and leagues

The platform runs as a white-label engine: any club, community or outlet gets its own pool and league operation on top of the same core. Chutaí League Gama is the delivered instance — the chutaigamao.com.br landing and fan pass for the Gama crowd at Estádio Bezerrão, VIP booth and exclusive experiences included — architected to absorb concurrency spikes around match days.

Results

2,000active participants on match day in Chutaí League Gama
150prizes delivered

Stack

Next.jsReactTypeScriptRealtime DBTailwind