The February 2019 ETHDenver Hackathon showcased the innovative use of Chainlink oracles in blockchain applications through a competition where participants had 36 hours to develop decentralized solutions. Chainlink awarded prizes to three standout projects: SmartPiggies, Gran Fondo, and EventLINK. SmartPiggies, the judge's choice winner, introduced a decentralized peer-to-peer options market using Chainlink to mitigate trust issues in financial transactions. Gran Fondo, earning second place, created a decentralized app for athletic competitions, leveraging Strava data to ensure trustworthy performance tracking and prize distribution. The first-place winner, EventLINK, addressed challenges in public event planning by using Twitter API metrics and crowdfunding smart contracts to determine optimal event locations and secure funding. These projects highlighted the capability of Chainlink oracles to automate smart contract execution based on real-world data, illustrating their readiness for practical implementation.