In Pamplona, bullfighting festivities date back to medieval times, the bull run, by far the most famous in Spain, was introduced in the late 17th Century.

The bullfighter, who goes by the stage name of Jairo Miguel, turned in his best performance with bull No. 5, a hulking black specimen that weighed 959 pounds.

Thousands of daredevils ran, skidded and tumbled out of the way of a stampeding group of bulls at the opening run of the San ...