Hybrid or Fully On-Chain? 7 Web3 Sportsbooks Sorted by Architecture

Two sportsbooks can both call themselves Web3 and work in completely different ways. One may hold every bet in a smart contract, while another keeps balances in a database and uses the blockchain only for deposits. Architecture shapes what bettors can verify, who controls funds during a bet and how quickly the book can price new markets. It also decides which risks fall on the operator and which fall on the code. Seven crypto sportsbooks, sorted from fully on-chain to custodial, show how those design choices play out. Crypto sportsbooks usually fall into one of three models.