There was a tense pause as the judges looked at the photo before eventually giving the win to Tiger Roll.
AINTREE, UNITED KINGDOM: Tiger Roll, the smallest horse in the field, was described as having the "heart of a lion" after winning the Grand National at Aintree on Saturday in a thrilling finish.
The winning jockey, Ireland's 38-year-old Davy Russell, said he was delighted to have finally won the race at his 14th attempt.
Jumping efficiently just behind the leaders, the recent Cheltenham Festival victor traded at a high of [17.0] in-running before making steady progress in the closing stages.
Neither Russell, nor his race rival David Mullins, knew who had got the bob - a finish which was extraordinary for the fact that Tiger Roll seemingly had the race won inside the final 100m.
With Elliott and his team planning to catch the ferry back to Ireland on Saturday evening, celebrations were likely to go long into the night at his Cullentra base in Co Meath.
National Weather Service confirms tornado in Baxter County in Friday's storms
But the confirmation of whether it was an actual tornado will come Monday when teams are able to look at the damage on the ground. Tornadoes damaged several homes in neighboring Union County, which had two tornadoes, County Judge Mike Loftin said.
The Cork man followed up his first Leading Jockey Award at the Cheltenham Festival with a narrow win aboard Gordon Elliott's Gigginstown-owned runner at Aintree.
Tiger Roll, a three-time Cheltenham Festival victor, was well backed at 10-1 coming into the race and always looked likely to challenge.
'I thought I was beat before then but I had to charge Davy Russell down.
However, a late surge by the Willie Mullins-trained Pleasant Company (25/1) brought the race to a photo-finish. I was thinking of my mum and my kids.
To win a National, I probably thought it was all very easy. "It was getting very, very loud and I said I'd better keep going because there's nothing worse than hitting the front as early as I did and getting collared and obviously then, Pleasant Company just flashed by me at the line and he gave us a couple of moments of worry", he said. Tiger Roll's victory at 10-1 was being hailed by the crowd before cheers turn to anxious cries as the horse either got exhausted or began to idle.
'I've won this race thousands of times in my head and I've never won it like I've done today'.