Seivwright was delighted to take the win but was feeling for O'Malley after the race.
"I'm ecstatic with that but it's a real shame for Sam to have to miss out through those circumstances," he said. "I knew the horse had the ability, but he's been unlucky over his career and has copped a number of injuries.
"He really just towed me around and I didn't have to do much at all. He made a mistake at the third-last fence, and when I gave him a squeeze, he just took off. I didn't realise I was in front by so much until I got to the winning post."
Meanwhile, the Toby Autridge-trained Tommyra returned to his best form over fences when he sprang a minor upset in winning the Hawke's Bay Hurdle (3100m).
The 2020 Waikato Hurdle (3200m) winner had been overlooked by many as punters gravitated towards topweight Tallyho Twinkletoe and the promising Bak Da Master to win the feature hurdle event on the card. Tommyra was ridden aggressively by Shaun Phelan, who picked up the ride after Reece Cole was stood down after a fall in the first race.
Autridge was excited. "I didn't think the day was going to go too well after we lost our jockey, but I was thrilled Shaun could take the ride," he said.
- NZ Racing Desk