Nigel Twiston-Davies landed his second winner of the week when Same Difference (16-1) edged out Super Duty in a thrilling finish to the Fulke Walwyn Kim Muir Challenge Cup.
Having entered the Festival under a cloud with several of his horses being ruled out of the meeting, Twiston-Davies has answered every question with a string of good runs to go with the victory of The New One on Wednesday.
Same Difference looked booked for a place at best coming down the hill but his amateur jockey Ryan Hatch got stuck into him and his mount answered every call.
Super Duty had been on the pace throughout and gamely rallied but ended up going down by a head.
Nina Carberry produced Romanesco late on the scene to finish third with Alfie Sherrin fourth after winning the JLT Specialty Chase at the meeting last year.
Hatch said: "You just dream of this and you can't really put it into words.
"I wanted to bounce out with them but I was short of room and had to take him back a step. For a circuit I suffered in mid-div, but as soon as he saw daylight he came back on the bit.
"He took off with me down the hill when I gave him a few smacks and he kept battling all the way to the line.
"I daren't believe I'd won. I was upsides Derek O'Connor, the top boy in Ireland, and I wasn't 100% sure but when they said number 13, I was fair relieved."
Twiston-Davies said: "The more winners we have here the better and I think we'll have a good day tomorrow.
"You couldn't be confident in a race like this. He only ran 19 days ago in the Racing Plus Chase so we were always taking a chance it might come too soon, but it obviously hasn't.
"I've no idea where he'll go now, we'll leave the brain cells to think about it another day.
"Ryan's been with us since he left school, he's like one of the family."