Galopin Des Champs looked certain to land the spoils when he jumped the last well clear of Bob Olinger, but he slipped and knuckled over a stride after landing and ditched Paul Townend onto the ground.
That left Bob Olinger (6-5) to come home unchallenged with Busselton picking up the pieces for second place in the four-runner Grade One heat, 40 lengths behind the winner.
Until that untimely exit everything had gone to plan for Galopin Des Champs. Willie Mullins’ six-year-old had jumped exuberantly in the early stages and had Bob Olinger under pressure before the race was turned on its head and the 5-6 favourite crashed out after seemingly clearing the last safely.
Bob Olinger’s rider Rachael Blackmore admitted the Henry de Bromhead-trained winner was fortunate.
She said: “It’s great to see Paul and Galopin are up and OK. It was their race to win. I don’t know what to say really, it’s fantastic to win, I’m delighted to win.
“I didn’t get into as good a rhythm as I thought I was going to. I thought that was my fate turning in, but that’s jumps racing.”
De Bromhead said: “You never want to win in those circumstances,but this game – always expect the unexpected and we’re delighted to win and we need to show a bit of joy as well.
“I was surprised to see him off the bridle so soon, obviously the other one is something else. I never thought I’d see another horse do that to him.
“He made a couple of mistakes so we still have to work on the jumping, but he jumped well on the first circuit.
“He’s still a work in progress, it was still only his third run over fences and he’s won a Grade Three and a Grade One.
“You don’t like to win a race like that, though.”