No is my short answer. My oldest sons friend and classmate did and got gored.
Pomploma is a lovely city with many great sights to see. Now walk down to the holding pens for the bulls and then walk to the halfway mark; narrow and dangerous. From there the streets widen until you reach the entrance to the Bull Ring. For an adrenaline junky who is nuts truly a run worth remembering.
Bow I do have my hat Shirt and scarf from 2016, do not know how I got those. Burgos is a safer city to visit