Cal Crutchlow was left to lament a 'frustrating' weekend at Assen after technical issues in the second race prevented him from getting on terms with the front runners.

The Yamaha rider went into the races having out-qualified team-mate James Toseland in ninth position, but was jumped by the former champion at the start of each occasion.

Indeed, having been shuffled out of the top ten in race one Crutchlow could only recover to eighth position by the chequered flag despite decent mid-race pace.

"It's been a very frustrating end to the weekend for me, I know I had the pace to achieve really good results and be up there fighting with the front guys in both races. I made a good start in the first but lost a lot of places on the first corner when the pack pushed me wide, but fought back and was one of the fastest riders on the track mid-race."

There was further disappointment in race two when Crutchlow's hopes of getting embroiled in a fight for a podium finish were scuppered by technical issues.

"Race two was even more frustrating as I was determined and ready to fight for a podium. Unfortunately the technical issue was out of my control so there was nothing I could do."

Crutchlow, a two-time pole winner so far this season, is currently classified tenth in the overall WSBK standings.