Celebrating 10 years of parkrun marking a landmark achievement for parkrun and signifying its continued growth and position within the running community parkrun will be celebrating their 10th anniversary on october 4th 2014 the parkrun 10th anniversary t shirt has been designed to be enjoyed and celebrated by the global parkrun community with all profits going back into parkrun to continue to support their growth the parkrun 10th anniversary t shirt has a relaxed fit please refer to our siz