Cal's debut at the spectacular Laguna Seca circuit was unfortunately a short experience, the British rider's hopes of a return to the top 10 ended by an early crash.
Starting from the front of the fourth row, Cal was shadowing tenth placed Alvaro Bautista when he lost the front-end of his Monster Yamaha Tech 3 Team machine at Turn 2.
The 25-year-old was unhurt in the fourth lap incident but it was a disappointing conclusion to a weekend that had promised much from the 2009 World Supersport champion after he'd brilliantly got to grips with the 3.610km track.
The Team now commences a richly deserved two-week summer break before the 2011 MotoGP World Championship resumes in Brno on August 14.
“I lost the front at the second corner and it was a similar problem to what we've been experiencing in recent races. It was fine this morning in cooler conditions but as soon as the track temperature goes up, I have a few problems. Strangely it was only at that corner."
"It is a shame because I think we had a good pace. Bautista wasn't getting away from me and he quickly got up to Valentino and Nicky, so I think I could have gone with him and been in that battle."
"I'm disappointed I didn't finish the race and it is not good for the Championship but I wasn't the only one to crash today and it shows all of us are pushing on the limit."
"We have still learned quite a bit this weekend and the bike certainly felt better than it did in the last few races. Now we go to some tracks that I know and I'm looking forward to it because it has been a tough run and I need to recover the form I was showing in the beginning of the season."