Definitly Red ran out a wide-margin winner of the BetBright Grimthorpe Chase at Doncaster.
An impressive winner of the Rowland Meyrick at Wetherby on Boxing Day before parting company with jockey Danny Cook in the Peter Marsh at Haydock, Brian Ellison's charge was a 7-2 chance for this recognised
Grand National trial on Town Moor.
Three horses rounded the home turn in with a chance of victory, but it was clear Definitly Red had far more to give than Wakanda and Sego Success, who were being hard driven on either side of him.
Definitly Red jumped to the front with a bold leap four fences from the finish and soon put daylight between himself and his rivals.
Ellison's charge safely negotiated the remaining obstacles and came home with 14 lengths in hand over last year's Grand National runner-up The Last Samuri, who was the 100-30 favourite.
Cook said: " Hopefully now all roads lead to the National. I think he's a very good horse and the question is whether he can jump round there."
Paddy Power cut Definitly Red to 16-1 from 25-1 for the Randox Health Grand National and his trainer soon confirmed the Aintree spectacular as his intended target.
"All being well, that's the plan. He looked good there, he's a terrific jumper and Danny gets on well with him," said Ellison.
"In the National, you need a lot of luck and if we get lucky, he could go well."