I bowled my first 800 series that included a 300 game at Inca Lanes in Yuma, Az. Four days later while competing in a 8 game tournament in El Centro, Ca. I rolled another 300 game. I won the tournament with an average score of 244. For the week I rolled 20 sanctioned games and averaged 248 for the 20 games. All this was done with my Roto Grip Hyper Cell that I had recently purchased.