Running of the bulls into the turn at Estafeta ("la curva"), resulting in the installation of anti-slip surfacing, and now most of the bulls negotiate the turn onto Estafeta and are often ahead of the steers. This has resulted in a quicker run. Runners are not permitted in the first 50 meters of the encierro, which is an uphill grade where the bulls are much faster. Every year, between 50 and 100 people are injured during the run. Not all of the injuries require taking the patients to the hospital: in 2013, 50 people were taken by ambulance to Pamplona's hospital, with this number
Running of the bulls least ten bulls are run together through the street guided by a group of twelve mounted on white Camargue horses; the , in which one bull is released outside the foyer and finds his own way back to the pen; the , in which one bull is run, accompanied through the streets; and the , which is the same thing but after dark. Boys and men run with the bulls and try and separate them from the horses, stop them, and physically turn them away from the horses. The English town of Stamford, Lincolnshire was host to the Stamford bull