Trainer Emmet Mullins took the race named in honour of his late grandmother as Corbetts Cross was much the best in the Maureen Mullins National Hunt Challenge Cup Amateur Jockeys’ Novices’ Chase at Cheltenham.

A 15-8 chance under Derek O’Connor, the chestnut travelled well throughout and let Mr Vango and Gina Andrews make the running.

As the race wore on Corbetts Cross advanced, and up the hill he pulled effortlessly clear of Patrick Mullins and Embassy Gardens (7-4 favourite) to secure a 17-length triumph.

Mullins – the son of renowned horse transporter George Mullins – said: “It was a great honour from the Jockey Club to name the race after granny and it’s extra special that we were able to win it.

“We were always very hopeful, I suppose he had the form in the book to be second in the Arkle today and he was able to show the same turn of foot over this longer trip. Derek got him into a great rhythm and he showed his true colours today, I think.

“The trip was probably a little worry with ground being so heavy, even though he has plenty form on heavy ground. I think having Derek on board was the main reason we decided to run in this race, to have his expertise is a big advantage.

“That race is a special test, so we’ll take it one day at a time and see how he is after it.”

O’Connor said: “It was a super performance, Emmet has done a wonderful job, he had him trained to perfection and he turned up in great shape.

“He had a very pleasing schooling session last Thursday morning in the hood. It’s not for me to say where he’ll go, but that was a very good performance.

“I have a nice book of rides for the week, but today was important to get us off to a good note.”