Lila Bremner hailed her pony "one in a million" after claiming an outstanding win on her debut at the Equerry Bolesworth International Horse Show.
Lila's father - television star and impressionist Rory Bremner - looked on as she delivered an immaculate display in the International Arena to land the Brown Shipley 148cms pony grand prix with Lapislazuli, which is owned by Lila's mother Tessa.
They were the only combination from 28 starters to go clear in round one and the jump-off over testing courses that showcased some of the leading British pony riders at their finest.
Claudia Moore and Shamrock du Gite finished second, with Megan Li and Harry taking third and Francesca Young finishing fourth aboard Carnhill Luna.
"It was quite a tricky course, but he jumped really well," Cotswolds-based Lila said. "He tries so hard for me.
"I got him when he was six, when he had not done much and I had not done much, and we have kind of grown together. This would be one of my bigger wins.
"He is so laid-back, but tries his hardest every time. He is one in a million, and we have got a really good partnership.
"It is my first time at Bolesworth, and it is an amazing venue. To win here is incredible."
Tabitha Kyle completed a Bolesworth and Liverpool double when she won the 138cms pony grand prix, sponsored by Pony of the Year Show.
The Leicestershire-based rider has been a prolific performer on the national and European stages, and she added Bolesworth 138cms success to the Liverpool title she collected six months ago.
The 11-year-old qualified three ponies for the jump-off, and she triumphed on last-to-go Playboy van de Zoetewei, taking more than three seconds off the time set by Noora von Bulow and Tullineaskey Fear Deas.
Noora took second spot, with Rachel Proudley and Icaris W completing the podium places.
Tabitha said: "I am really happy with that. It is a really big achievement for me after working our way up during the last three years.
"I came here three years ago, and my ponies were still very young and quite spooky, and last year at Bolesworth I was second on Playboy, so it is really nice to have a win.
"My ponies have been very consistent and are jumping really well, and Playboy has settled down a lot in the last couple of years."