This directory contains open-source data obtained using a single-bladed H-type vertical-axis wind turbine prototype with individual blade pitching. This data results from the optimisation of the blade's pitching kinematics using a genetic algorithm at two tip-speed ratios: 1.5 and 3.2. The aerodynamic forces for all tested individuals and their pitch profiles are shared. A full descripton of the data content and how to use it is given in the readme.txt file. More information can be found at https://doi.org/10.21203/rs.3.rs-3121052