McGrath's purple patch has carried him to the top of the batting rankings and his county towards the summit of the Twenty20 Cup's North Division, but he is not expecting his scintillating form to trouble England's selectors.

The 32-year-old struck 65 during Yorkshire's dramatic tie with Durham at Headingley Carnegie on Sunday, taking his total of runs after seven matches to 354, and the Tykes will look for another telling contribution from their in-form player during the return fixture at the Riverside this evening.

England's leading one-day exponents are already looking towards November, when a Twenty20 Challenge match between England and an All-Star XI in Antigua will carry prize money of around £10m for the winning team, but McGrath believes the likelihood of him profiting remains as slim as it was before the Twenty20 Cup began.

"Of course I'd like a chance to play for that kind of money," said McGrath, who has made four Test and 14 one-day appearances for England. "Everyone would. But I think in terms of England I'd have to score 200 in every game to get back in, so I don't think I've got any chance to be honest."

McGrath has averaged 59 during Yorkshire's Twenty20 Cup campaign, helped by four half-centuries, and four wins and a tie from the county's last five matches have enhanced their prospects of progressing from a competitive North Division.

Sunday's dramatic draw in Leeds – ensured by a last-ball six from Durham's Gareth Breese – prevented Yorkshire from climbing to the top of the group, but they are within a point of the Chester-le-Street side ahead of tonight's match against the leaders in the north east.

Both sides finished on 159-7 at Headingley, and Yorkshire coach Martyn Moxon was left to rue a fielding error which saw his team penalised one run in the penultimate over.

McGrath said: "It was one point lost.

"They needed nearly 30 from the last two overs and to tie the game from there was very disappointing.

"It's always tough to tell what a winnable score would be. We were pretty pleased with scoring 159, but Durham got off to a good start. We managed to peg them back and really should have won."

Tonight's game is the eighth of 10 North Division fixtures facing Yorkshire with games against Leicestershire and Nottinghamshire scheduled to round off their group campaign.

Four counties are still capable of claiming the two quarter-final places on offer, and McGrath said: "We're probably going to have to win two of the remaining three games to progress. It's all to play for.

"I think we'll go (to Chester-le-Street) still confident. Durham are an excellent side, full of great individual talent and they are very good at home so we expect another tough encounter. But we can get the points."