An online bibliography on sport in the classical antiquity, with studies dating from 1986, based on the annual bibliographies in the journal Nikephoros.
From the project website (accessed 2019-06-18):
Although we aim for a complete database of publications on sport in Antiquity, we are aware that some publications have thus far escaped our attention. For SUGGESTIONS and ADDITIONS (e.g. missing publications, keywords, etc.), please fill out the contact form. Also publications from before 1986 and recent publications can be suggested.