The PSA World Series tournaments are some of the most prestigious events on the men's tour.
The best-performing players in the World Series events qualify for the annual 2011 PSA World Series Finals tournament.
Amr Shabana won his first PSA World Series Squash Finals trophy, beating Grégory Gaultier in the final.
Points for this are calculated on a cumulative basis after each World Series event.
The top eight players at the end of the calendar year are then eligible to play in the PSA World Series Finals.