Donkey race at Cobreces, Spain

On our way to Comillas, as we drove through Cobreces, there were a lot of people standing around a green paddock, so we just had to stop and investigate.
getting ready, there was a lot of commentary going on, all in Spanish, so we did not really know what was going on, but one thing that stood out was that the donkey's kid are at their side the whole time, even during the race

spectators line up along the street, and an awesome blue sky day
getting ready to go
and they're off
being Spain, I assumed it was just going to be an all boy's affair, but no, there is one girl in the race as well
oh this is so funny, there's carnage everywhere, basically this race seems to be more about entertainment for the local villagers than the actual race
and then you get donkeys chasing and mounting other donkeys , all to much delight of the crowd. lots of clapping and cheering

carnage on the other side as well

keen to know why the baby donkeys are in the race as well
And the girl wins ! !