Backford teenager Joe Francis endured a disappointing weekend at Cadwell Park as he lost ground in the Pirelli National Superstock 600 title race.
Team Traction Control rider Francis crashed out on lap 11 at the Lincolnshire circuit on Saturday, with the eventual race being won by overall championship leader Mason Law.
Francis was fighting for third on the final lap of the race but was punted off the track and out of contention for what would have been a valuable points finish.
Francis currently sits in fourth spot in the overall standings but clear daylight has now been created between the leading trio of Law, Ben Currie and Tarran Mackenzie and the Chester-born 17-year-old.
In the MCE British Superbikes Championship, also at Cadwell Park, Chester-born Jenny Timouth declared herself pleased with her performance following a 22nd-placed finish in race one and a 20th-placed showing in race two.
The Honda Racing rider said: “It’s been a really good weekend here for me.
"I’m chuffed to bits with all the hard work we’ve all put in and now that’s starting to pay off.
"I smashed my personal best lap times here and improved in race two with faster times than in race one. I’m looking forward to my home round in a few weeks at Oulton Park and hope to improve more."
Prior to Cadwell Park, Tinmouth admitted she has struggled with the physicality of the circuit over the years, but Honda Racing team manager Havier Beltran was full of praise for her peformance.
"Jenny’s had a fantastic weekend at a circuit she has historically struggled with and it’s great to see all the hard work both the team and Jenny have put in starting to take effect.
"The aim for the weekend was to finish both races, which she did in 22nd and 20th places, but she also improved her lap times, especially in the second race with each lap faster than the previous. It’s all going in the right direction with Jenny and we’re looking forward to the next round and seeing more progress there."
Frodsham’s Howie Mainwaring-Smart had a weekend to forget as he finished 15th in race one on board his Quattro Plant Bournemouth Kawasaki before crashing out on lap 17 in race two.
In the British GT Championship at Snetterton, Chester-born Jamie Stanley, at the wheel of his Fox Motorsport Ginetta GT4 won race two in the GT4 category.