Roundstone Racing's Craig Jones sealed the Junior Superstock championship at Donington Park last weekend.

Meanwhile, John Crockford and Chris Burns grabbed second and third respectively in the National Superstock.

The Angmering-based team had plenty riding on the final round of the British Superbike Championships with a chance of lifting both the national and junior superstock championships.

In the Superstock field, Burns and Crockford were lying second and third in the championship respectively ahead of the final races.

Both riders lined up on the front of the grid for the start of the race and Crockford went on to win the race to secure second place overall behind David Jefferies, who finished the race in third spot.

There was disappointment for Burns though. Having been constantly vying for the championship lead all season, his tyres let him down and he was forced to retire on the third lap.

Crockford claimed second place in the final championship standings while the hapless Burns dropped to third place.

Had Crockford not missed part of the season due to an injury sustained in a mountain bike accident, Roundstone would almost certainly have claimed the title.

In the Junior Superstock race. Jones has had a superb season, showing extreme maturity well above his years.

In a race-long battle with his championship rival Tom Sykes, they swapped positions at the front on numerous occasions, with Sykes eventually taking the win.

However, second place was good enough for Jones and he secured the championship trophy.

Controversy surrounds the title however, as Sykes' team have lodged an appeal over the decision to strip them of points due to an incident earlier in the season when he collided with Jones in a race, forcing the Roundstone rider to retire, and allowing Sykes to take the win.

Sykes congratulated Jones on his title and said he deserved to win.

KEVIN Stone suffered an engine blowout which wrecked his hopes of a double dose of glory last weekend at Snetterton.

Stone, of Peacehaven, took two third spots in the Rookie 400 series to clinch second in the overall Southern Championship but he competed in the second race on a borrowed bike after his own seized up in the first race.

The next day, on yet another borrowed bike, he had to settle for ninth in the Rookie 400 Nationwide Championship.

On Saturday in the Southern Championship, Stone was in third spot when a valve blew and started an engine fire.

Fortunately for Stone, an accident on the track forced that race to be red-flagged and they took the finishing positions from the previous lap's performance, ensuring he kept third spot.

With his Kawasaki ZXR out of action, Stone raced in the second race of the day on a borrowed bike and again took third for second overall in the championship.

In the Nationwide Championship on Sunday, Stone had been hoping to move back to third in the overall table after slipping to fourth by one point.

However, with another borrowed bike to race on, this was never going to be easy although at one point he was running in third position when he came off due to the unfamiliar set-up.

Stone got back on but was at the back of the pack and had to work his way through to finish ninth. In the second race he managed sixth.

Stone remain fourth and just a point behind Adam Polczyk in the Nationwide and has his last chance to nick third spot back at Brands Hatch in the final round on October 26.

Stone said: "It was a bit disappointing as riding three different bikes screwed my chances up really. That's racing for you. One minutes you're on a high, the next minute you're on the tarmac."