Rince Ri heads the 39 horses left in the Powers Gold Label Irish Grand National at Fairyhouse on Monday.
Davids Lad, who missed the Martell Grand National due to suspension, is next in the list.
First Gold, Foxchapel King and Commanche Court have all defected.
Sean Treacy's useful novice mare Be My Belle is still in the race and has the three miles, five furlong contest as her target so long as the going is on the soft side of good.
However, the ground is currently described as good, good to firm in places on the chase course.
British hopes could lie with Lord Jack, trained by Nicky Richards, Another General (Richard Phillips), Berlin Blue (Robert Stronge), Keltic Heritage (Luke Dace) and River Bug (Jamie Poulton).
The final declaration stage for the race is on Friday.