Farquhar held off a challenge from Jason Griffiths on Wednesday

Dungannon rider Ryan Farquhar held off a challenge from Jason Griffiths from the second day in succession to complete a four-timer at the Southern 100 in the Isle of Man.

The McAdoo Suzuki rider finished off his week by earning victory in the solo championship event.

He finished 2.5 seconds clear of Griffiths helped by a lap record of 109.28mph.

The win was also worth �2,003 and he became the first recipient of the Joey Dunlop Trophy awarded to the rider setting the fastest lap of the week.

Martin Finnegan claimed third with Victor Gilmore eight and Paul Cranston ninth.

Lisburn-based Guy Martin crashed on the opening lap and the race was briefly halted but he did not sustain serious injuries.

Earlier, Farquhar was pipped for victory in the 600 and 400 events.

Lougher won the 600 race by .03 of a second after an exciting race while Blackpool's Roy Richardson took the 400 event.

Chris Palmer won Thursday's 125 event ahead of Chris Palmer and Robert Dunlop.

On Wednesday, Farquhar held off a challenge from Griffiths to win the Senior event.

Adrian Archibald claimed two wins at this year's Isle of Man TT

The McAdoo Suzuki team member came in .30 of a second ahead of the Welshman while Lisburn-based Englishman Guy Martin was third.

Farquhar and his fellow-Ulsterman Robert Dunlop earned wins on the opening day of the meeting on Tuesday.

The Dungannon man won the first Open race, claiming race and lap records in the process.

Farquhar, who produced marks of 106.14mph and 107.75 on his McAdoo Suzuki, came in seven seconds ahead of Jason Griffiths and Ian Lougher.

Guy Martin and Martin Finnegan took fourth and fifth places in the race.

Dunlop had a comfortable success in the 125cc event ahead of Matt Jackson and Nick Woodman.

Ian Lougher won the 250cc event ahead of Chris Palmer and Farquhar.

The action continues in the Isle of Man on Thursday.

Meanwhile, Isle of Man TT winners Adrian Achibald, Bruce Anstey and Shaun Harris will all compete in this year's Stannifer/Snoddons Ulster Grand Prix on 16 August.

I'm looking forward to the Ulster Grand Prix which will be the last big race of the year Adrian Archibald

And taking on this year's TT heroes will be Welshman Jason Griffiths who will be providing a challenge from Yamaha UK.

Griffiths' bike is similar to the bike being ridden by Gary Mason in the British Superbike Championship and Ulster Grand Prix race co-ordinator Leslie Moore believes the Welshman will present Archibald with a stiff challenge.

"After Adrian Archibald demolished everybody at the Dundrod 150 on the TAS Suzuki we had to come up with somebody to take him on," said Moore.

"Yamaha are putting their weight behind Jason Griffiths and it should mean for some tremendous racing".

The Welshman is a former lap record holder at Dundrod and has claimed four Ulster Grand Prix wins during his career.

Ballymoney rider Archibald is none the worse for wear after his spill in Saturday's Skerries 100 meeting.

Lindsay returns

"I'm looking forward to the Ulster Grand Prix which will be the last big race of the year," said Archibald.

"The crash didn't give me any real bother and I've been there before.

"I'll be competing in the two Superbike races plus the Production and the 600 events and while I'm not making any predictions, hopefully we'll get up to the front and have the chance to win a few races".

Anstey claimed the junior 600cc event in the Isle of Man while his compatriot Harris won the 1000cc Production class.

Darran Lindsay, who has missed most of the summer after breaking his arm in the early part of the season, will be fit to compete over the Dundrod course where he lives.