Player A: $(20+22+19+21+20+23+18+21)/8 = 164/8 = 20.5$ - Player B: $(15+18+20+22+25+20+28+12)/8 = 160/8 = 20.0$ - Player C: $(30+10+25+5+35+15+20+20)/8 = 160/8 = 20.0$