This dataset contains experimental mechanical testing data as described in https://doi.org/10.1302/2046-3758.811.BJR-2019-0065.R1 (see related ressources). There are four associated .zip files. Three of these .zip files include the raw data collected for the mechanical testing of the three different test groups investigated (7mm, 8mm & 9mm tendon graft diameters). Please see publication for further explanatory details. The remaining .zip file compiles the paramters measured in the raw data to give a summary of results and their graphs thereof.