Basques are famous all over Spain because we are considered to be very strong (a myth? maybe…) and big lovers of traditions. That mixture is represented on Basque sports, that are mainly based on strength. There are dozens of sports that are regularly played in local leagues. The most known is Basque Pelota (handball), you´ll surely notice that there´s a frontón (wall for handball) in every Basque town, no matter its size. Pelota has many varieties, it´s played not only with the hands, but also with “palas” (a very narrow wooden racket), “cesta punta”, “xare”,…in long and short frontones. Some examples here and here
Also, rural sports such as stone lifting (in its many varieties, too, with different weights, sizes, shapes,…), Stone lifting or stone pulling (men, oxen or donkeys…), grass cutting, wood axe cutting, etc…, are played (and we love to bet on them) throughout the year and mostly in summertime at the town festivals. Something very interesting and a centuries old tradition. Video here (what sounds in the back is a traditional Basque instrument, the Txalaparta)
Another one very popular is the “estropadak” or “traineras”, that is, a rowing boat competition in open sea. There´s a league that starts in spring and ends in summer, and the most important competition takes place in September in the Concha estuary in San Sebastián. The winner gets a Flag (and money, too). Some videos here. We just love to keep traditions alive.