Prediction Markets 101: How to Build Them on Solana

​Prediction markets are one of the fastest-growing verticals in crypto right now. Kalshi crossed $9 billion in monthly volume. Polymarket became the most-cited source during the US election. And on Solana, projects like Trepa are showing what's possible when you combine onchain speed with real user demand. If you've been thinking about building in this space and don't know where to start, this is the session.

​Anam Ansari, Blockchain Engineering Lead at Trepa, a Colosseum Breakout Hackathon winner, walks through prediction markets from first principles to production architecture. Trepa has been in the trenches building this on Solana, so this is not a theoretical overview; it's a practical breakdown from someone who has shipped it.

​The session covers how prediction markets work and why prices naturally converge to reflect real-world probabilities, then goes deep on what it takes to bring them onchain: market design, trade execution, smart contract architecture, liquidity mechanics, pricing mechanisms, and how to build a resolution system that users and traders will actually trust.

​This is directly relevant if you are building anything in the prediction market, forecasting, or information market space for Colosseum, or if you want to understand the architecture well enough to integrate prediction market primitives into a broader product, i.e. trading tools, AI agents, analytics platforms, or DeFi protocols.

​What you will walk away with: a clear mental model of how prediction markets work onchain, the key architectural decisions you need to make before you write a single line of code, a practical understanding of the liquidity and resolution challenges that break most prediction market builds, and real lessons from a team that has already won a Colosseum hackathon doing exactly this on Solana.

​Prediction markets are having their moment. Build one properly.

Can't make it IRL? We gotchu!
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