Running of the bulls bullring, which acts as a funnel as it is much narrower than the previous street. In such cases injuries come both from asphyxia and contusions to those in the pile and from goring if the bulls crush into the pile. This kind of blocking of the entrance has occurred at least ten times in the history of the run, the last occurring in 2013 and the first dating back to 1878. A runner died of suffocation in one such pile up in 1977. Overall, since record-keeping began in 1910, 15 people have been killed in the bull running of Pamplona,
Running of the bulls of the herd has entered the bullring and its corral respectively, marking the end of the event. The average duration between the first rocket and the end of the encierro is two minutes, 30 seconds. The encierro is usually composed of the six bulls to be fought in the afternoon, six steers that run in herd with the bulls, and three more steers that follow the herd to encourage any reluctant bulls to continue along the route. The function of the steers, who run the route daily, is to guide the bulls to the bullring. The average speed of the