CodaLab Competitions is a powerful open source environment for organising competitions involving the submission of results or code. You can participate in an existing competition or organise one yourself.
Most of the competitions hosted on Codalab are machine learning (data science) competitions, but Codalab is NOT limited to this application area. It can accommodate any problem for which a solution can be provided in the form of a zip archive containing a number of files to be evaluated quantitatively by an evaluation program (provided by the organisers). This program should return a numerical score, which is displayed in a table where the participants' performances are compared.
Lab of attachment
6, rue Noetzlin