The Pick6 at next Wednesday's Matamata races will be guaranteed after it jackpotted again at Pukekohe yesterday.
One full unit was live going into the last leg yesterday, with Empathy racing to win $330,000 for that punter.
But the long-striding maiden never looked a winning chance, running on late but giving the ticket holder little reason to cheer, the race being won by local galloper Pablo, ridden by Chad Ormsby, at long odds.
Yesterday's jackpot was the largest ever for a Wednesday Pick6 but will be eclipsed next week, when a final pool approaching $600,000 is likely.
"We are guaranteeing it to $500,000 but really it is a soft guarantee," said TAB spokesman Michael Dore.