So sorry, my mistake. Looking on the internet, there are apparently 20 episodes. I need episodes 11-20 (includes a special - episode 15 (USA vs The World).
Here are the episodes I found listed on the internet:
Episode 11 - Best Runs Of The Season
Episode 12 - National Finals In Las Vegas Part 1
Episode 13 - National Finals In Las Vegas Part 2
Episode 14 - National Finals In Las Vegas Part 3
Episode 15 - USA Vs The World
Episode 16 - National Finals Stage 1 Part 1
Episode 17 - National Finals Stage 1 Part 2
Episode 18 - National Finals Stage 1 Part 3
Episode 19 - National Finals Stage 2
Episode 20 - National Finals Stage 3
However, when I look up the series, there seems to be a lot of confusion as to how many episodes there are? A lot of websites saying different things? At the moment, the series I have stops at episode 10, but there is quite obviously a lot missing?
Thanks again for taking the time to answer and help.