Shane Byrne signalled his frustration at being unable to translate strong race pace into a better result at Miller Motorsports Park, the reigning BSB champion finishing tenth and eleventh.
Having qualified on the front two rows for the first time this season in Superpole, a poor start in the opening race saw Byrne plummet from sixth to 16th in the early stages, the Briton improving to 13th before the red flags were produced.
Competing under an aggregate format for the restart, Byrne fought his way back into the top ten on the road, passing Noriyuki Haga in the process, but it was only enough to move him up to 11th in the final classification.
The second race started better for Byrne, the Sterilgarda Ducati in the hunt for a spot on the podium. However, an error on lap five dropped him to the back of field, prompting a fine comeback ride that would get him up to tenth by the chequered flag.
While Byrne was disappointed with the results on paper, he was otherwise pleased with comfortably his most competitive weekend of the year so far.
"I had a good pace in both races. Unfortunately, I didn't have a good start in race 1 and made a mistake in the second one. I certainly could've done better.
"However, we have to look on the bright side. We were very effective in practice and constantly fast in race. We have to keep it up and be more competitive.”