In case they are of interest to anyone, we have published some academic / professional papers around Coderetreats. Sorry that some of these are behind paywalls.
Parsons, D., Susnjak, T. & Mathrani, A. (2016). Design from Detail: Analyzing Data from a Global Day of Coderetreat. Information and Software Technology, 75, 39–55.
Parsons, D. (2015). Refactoring coderetreats:…Continue