Nicky Henderson continued his spectacular afternoon as Une Artiste gave him his fourth winner in the Fred Winter Juvenile Handicap Hurdle at Cheltenham.
The master of Seven Barrows had already claimed Grade One prizes with Champion Chase hero Finian's Rainbow, RSA scorer Bobs Worth and Neptune winner Simonsig.
This victory was at a lesser level, and at a far bigger price, as she was sent off at 40-1 in the hands of Jeremiah McGrath. Barry Geraghty rode the others.
Kazlian looked to have stolen a march on his rivals when going clear down the hill, but he was a spent force approaching the final flight. Une Artiste came with a strong run and kicked on up the hill to beat Edeymi by a length and three-quarters.
Favourite Vendor ran an amazing race to finish third, with his rider Robert Thornton hard at work from the halfway stage. Kazlian passed the post fourth.
McGrath said: "That's my first Festival winner and it's my first ride back here since I had a bad fall in December on my birthday - this more than makes up for it! There was probably less pressure on me because the horses are in such great from.
"She's a really tough filly and we've not had her long. She won at Haydock on heavy ground and my main worry was whether she would handle better ground. I knew I was getting there a long way out and she won going away."
Henderson, who was saddling his 44th Festival winner, said: "I think it's the type of day we will wake up and realise it's all a dream. For everybody here, this is the place to be. It's only once a year and to have four winners, there is no better feeling.
"This is my first win in this race and it's very special. My dad (Johnny Henderson, who played a major part in saving the track in the 1960s) and Fred Winter were the two most important people in my life."
Henderson revealed he was actually wearing his father's suit as he thought he might break Fulke Walwyn's all-time record to be crowned leading trainer at the meeting.