To be eligible for the senior Grand Prix series, skaters are required to have turned 15 by the preceding July 1 (e.g. July 1, 2009 for the 2009–10 series). A skater must meet the age requirement before it turns July 1 in their place of birth. For example, Adelina Sotnikova was born a few hours into July 1, 1996, in Moscow and consequently, was not eligible to compete until the 2011–12 season.
