Linera Markets has introduced ultra-short prediction markets on the Linera testnet, allowing users to predict whether $BTC, $ETH, or $SOL will close higher or lower than their opening prices. These markets operate in 1, 3, or 5-minute intervals, with a rolling format ensuring continuous action. Powered by Linera's microchains, the platform offers instant, parallel execution with zero congestion and sub-second finality. The platform employs a pure parimutuel model, where winners share the pot based on their stakes, and odds update live as bets are placed. Weekly tournaments on the testnet offer real prizes, starting each participant with 1000 GMIC tokens, which reset weekly. Additional incentives include daily login bonuses and leaderboards, with top prizes reaching $750 in USDC. Portal Points, earned through predictions, influence future mainnet allocations, enhancing long-term engagement.