An expected STG10 million ($A18.25 million) will be up for grabs in Britain's Scoop6 next weekend after Ballyglasheen scuppered punters' hopes in the fifth leg.

There was STG7.4 million in the prize pots ahead of Saturday's racing, with nearly 192,000 tickets in play on the six-leg bet.

Two hundred and seven tickets were still live after the first four races, with 12 of the 13 runners covered in the Swinton Hurdle at Haydock.

Only Ballyglasheen had no supporters and the Evan Williams-trained runner duly got up to deny last year's winner Barizan in the shadow of the post.

His victory means the prize will roll over for the 10th week, with officials anticipating a further increase in interest as the total prize funds are expected to hit STG10 million.