Tradition: Revelers from around the world arrive to Pamplona every year to take part on some of the eight days of the running of the bulls

Annual event: Fifteen people have been killed at the annual festival, made famous by a 1926 Ernest Hemingway novel, since records began in 1911

Run: The event has become increasingly popular with foreigners, who join the locals by staying up all night drinking and partying before thousands compete in the 8am run

Draw: Pamplona's population of 200,000 swells to around two million during the festival, the largest in Spain

Aggression: An 'El Pilar' fighting bull charges against a reveler

Count: Hospital authorities initially said four people were gored but the regional government revised that down to three

Fail: The woman does not succeed as she runs ahead while the bull makes contact

Sport: A young woman tries to outrun a bull at the close of the running-with-the-bulls in the old city of Pamplona

Duration: Today's event lasted just under five minutes, roughly double the normal length. Longer runs normally occur when some of the bulls get separated from the pack and become disoriented and more dangerous

The black bull which caused most panic Friday made several more attempts to charge people before he was eventually guided along the narrow streets to join the rest for the pack in the pen of the packed bull ring

Legend: Ernest Hemingway popularized the week-long fiesta in his book The Sun Also Rises in 1926

Deaths: The fighting bulls used in the centuries-old fiesta can weigh up to at 1,380 pounds (625 kilograms) and have killed 15 people since record-keeping began in 1924

Horrifying: Three people were gored today on the bloodiest day of the famous Spanish Running of the Bulls festival so far this year

Menacing: The runner gets tossed in the air by an El Pilar fighting bull after getting gored on Estafeta street during the sixth running of the bull

A runner gets gored by a bull on Estafeta street during the sixth running of the bulls of the San Fermin festival in Pamplona July 12, 2013. Four runners were gored in a run that lasted four minutes and fifty seven seconds, according to local media. REUTERS/Susana Vera (SPAIN - Tags: ANIMALS SOCIETY)

Trapped: The man is caught between the horns of an El Pilar fighting bull after being gored