Complex sentence: With a parcours of, the fourth stage of the Tour de Pologne was also its longest for the 2013 edition; having gone in an easterly direction out of Kraków the previous day, the race returned to the west once again.
Split into simpler sentences: With a parcours of, the fourth stage of the Tour de Pologne was also its longest for the 2013 edition. Having gone in an easterly direction out of Kraków the previous day, the race returned to the west once again.