GCASR is a premier venue for the Chicago and Midwest computer systems research community. The workshop’s goal is to promote awareness, collaboration, and synergy among academic and industry systems researchers and practitioners in the region. Its participants represent a variety of sub-areas of systems, broadly construed, including operating systems, distributed computing, systems for machine learning, high performance computing, computer architecture, networks, databases, and security. This year’s GCASR will continue that tradition, but will also emphasize the themes of the intersection of machine learning and systems, security, and cryptocurrencies. We have a strong line up of 19 speakers representing academia, industry, and national laboratories as well as a poster session with over 40 research posters. There will also be a keynote address delivered by Elaine Shi, Associate Professor of Computer Science at Cornell and Co-director of the Initiative for Cryptocurrency and Contracts (IC3).