₵h@mpi0nz Pr3dict0r

Stake CHZ, predict the 90-minute scorelines of the UEFA Champions League 2026/27, and climb two leaderboards from matchday one to the final in Madrid — on Chiliz Chain, with results set automatically from UEFA's own data feed.

• Spec: PRD.md (master) · PRD.html (readable mirror)
• Build plan: .scratch/championz-predictor/ — 16 vertical slices
• Agents: read CLAUDE.md first · workflow in CONTRIBUTING.md

The pitch

• Full Season pass — 1,100 CHZ (until MD1 kickoff): predict all 189 matches, compete for the League Pool and the Knockout Pool.
• Knockout pass — 550 CHZ (on sale from MD1 kickoff): join late, compete for the Knockout Pool from zero — same matches, same money, same odds as everyone else.
• Scoring: 5 exact / 3 goal-difference / 1 outcome, on the 90-minute score, plus extra-time / penalties / advancing-team bonuses on knockout deciders.
• Predictions editable until 60 minutes before kickoff (you just re-pay ~$0.05 gas).
• Top-20 of each stage split its pool: 25% / 15% / 10% / 30%÷7 / 20%÷10.

Quick start

npm install
npm run dev        # http://localhost:3000
npm test && npm run typecheck && npm run build

Copy .env.example → .env.local for real chain/API keys (everything runs without them during slice 01).

Workspaces

• app/, lib/ — Next.js 16 frontend (this package)
• contracts/ — ChampionzPredictor.sol (Hardhat, slice 02+)
• relayer/ — UEFA results oracle on GitHub Actions (slices 04–06)

---

Design inspired by BigMac Bobby · Built on Chiliz Chain · Not affiliated with or endorsed by UEFA.