Laverty found himself battling for fourth place in the opening encounter too, however a technical issue unfortunately ended his race early.
The second race looked set to provide more promising results, with Laverty challenging the leading three throughout the race, however a red flag for an incident involving his teammate Alex Lowes at the Corkscrew stopped the race.
The following 7-lap sprint was also red-flagged and restarted, which saw Laverty drop to seventh place early on, but he fought hard and came through to take fourth place.
He said, “We have put in a lot of good work all weekend but race one was over before it started; we had a technical problem and managed a few laps hanging in there.
“In race two I managed to hang in with the front guys even when our bike isn’t as strong with a full fuel tank and new tyres. Then the GSX-R started to feel really good and I knew I could come towards them but the red flag came out.
“The restarted seven lap sprints don’t really suit us as we are always better at the end of the races. We as a team had the potential for podiums today, the guys worked so hard this weekend so we all deserved it before the summer break – fourth was not really the reward we were looking for.”
Teammate Alex Lowes had a difficult weekend in California despite the promise he showed in practice.
Lowes crashed heavily in morning warm-up, but managed to finish eighth in race one before a huge crash entering the corkscrew ended his race.
He commented, “It’s been a difficult, painful day and I’m disappointed with its conclusion. I got a good feeling and understanding with the GSX-R today and my team has done a great job this weekend so it’s a shame we couldn’t come away with more.
“I’m looking forward to the summer break; it will give me the time to recover and continue my training so we can come back strong and ready to fight in Jerez.”