Ground conditions will be the deciding factor in whether top-weight Conflated will line up in the Randox Grand National at Aintree on Saturday – with the weather pointing towards Delta Work as the number one contender for Gordon Elliott and Gigginstown House Stud.

The 10-year-old Conflated, who holds alternative entries in the Aintree Bowl on Thursday and Friday’s Melling Chase, is one of 13 contenders for Gordon Elliott following the confirmation stage, with Coko Beach, Delta Work and Galvin also part of the three-time Grand National-winning trainer’s squad.

Conflated, Coko Beach and Delta Work all carry the colours of Michael O’Leary’s Gigginstown House Stud, who are also responsible for Farouk D’Alene, Run Wild Fred and Frontal Assault, although the latter is almost certain to miss the cut.

When asked whether the first five were intended runners Gigginstown’s racing manager Eddie O’Leary said: “I would think at the moment yes, maybe Conflated might not, we’ll see how heavy the ground is going to be. If it’s very heavy he might come out to go in the Bowl or even the Melling.

“Would we chance him (in the National) over that trip on good ground yes, would we chance him over that trip on heavy ground, probably no. We’ll see what Gordon thinks.

“Coko Beach likes soft ground, but he mightn’t like what the handicapper’s done to him. He’s a lovely old horse, but he’s run it he race twice and failed to get home twice.

“We’ll obviously give him a bit more of a chance this year, rather than trying to make the running with him, but he got a big hike for winning the Troytown and off that weight (11st 7lb) it’s hard to fancy him. Conflated has to give him 5lb and Conflated would carry him.”

The Gigginstown colours have been carried to Aintree glory three times – twice by Tiger Roll and once by Rule The World. Like Tiger Roll, Delta Work is a winner of the cross-country chase at Cheltenham, although that race was called off this year, meaning a slightly less smooth preparation than had been hoped for.

O’Leary is still hopeful, however. He said: “I’d say of ours Delta Work would be the one. He’s a good horse and he’ll love the ground. It was a pity he didn’t get to run in Cheltenham after they called the cross country off as horses were trained for that to come forward for the National, but we are where we are now.”

Willie Mullins is also heavily represented, as he seeks a second victory in the world’s most famous steeplechase, having previously struck with Hedgehunter in 2005.

The Closutton handler’s nine-strong team features last year’s Irish Grand National winner I Am Maximus, fellow JP McManus-owned runner Meetingofthewaters and Mr Incredible.

Other leading hopes for Ireland include last year’s runner-up Vanillier, trained by Gavin Cromwell, the Emmet Mullins-trained 2022 National hero Noble Yeats, Martin Brassil’s Panda Boy, Mahler Mission from John McConnell’s yard and Henry de Bromhead’s 2021 Cheltenham Gold Cup winner Minella Indo.

The home team is led by Corach Rambler, victorious 12 months ago and the current favourite to strike gold again following an excellent third place in the Cheltenham Gold Cup last month.

Kitty’s Light would be a popular winner for Welsh trainer Christian Williams, as would Gary Moore’s Welsh Grand National scorer and proven mudlark Nassalam.

Others of note among 51 confirmations include the Tom Ellis-trained Latenightpass and Dan Skelton’s mare Galia Des Liteaux, with the latter one of six horses on 10st 6lb at the bottom of the weights.

Empire Steel, Fantastic Lady, Angels Dawn and Fury Road were the four horses not left in at Monday’s confirmation stage, while Classic Getaway, Bronn and Full Back had all been scratched.

Corach Rambler is the 4-1 favourite with Coral, with I Am Maximus and Vanillier also single-figure odds.

Coral’s David Stevens said: “Fifty years on from Red Rum’s second National victory, Corach Rambler looks set to start a warm favourite to emulate the Aintree legend and win the race in successive years, although soft ground performers like I Am Maximus and Meetingofthewaters continue to attract support in the betting.”