The Prague Skate (sometimes titled Golden Skate; from 1994: Czech Skate) is an international figure skating competition. It was a senior event from the 1960s to 1997, usually held in November or December in Prague. Medals were awarded in the disciplines of men's singles, ladies' singles, and pair skating. Since 1999, it is organized in some years as part of the ISU Junior Grand Prix series.
The Prague Skate never featured a skater over 30 years old.
The context statement mentions that it was both a senior and junior event but never talks about the actual age of the skaters. Therefore, we can't know definitively if a skater over 30 years of age was in the Prague Skate. 