Most scholars who have studied the west frieze believe that it depicts the preparation of the Panathenaic procession that took place in the Kerameikos.
Predominating in the centre is the figure of another horseman who is trying to bridle his horse. This is the only block in the entire frieze that is devoted to a man and horse alone. Some consider it to be a work by Pheidias himself.
Two bearded horsemen, dressed alike in a chiton secured on one shoulder (exomis) and chlamys, boots and a fox-skin hat (alopeke) on their heads, stand out. They are considered to be the two hipparchs.