There was significant drama in the Arlington Million in Chicago on Saturday as The Apache, trained by Mike de Kock, was demoted into second place after he was first to cross the line in the feature race.
Christophe Soumillon's mount veered sharply right into the path of Real Solution close home and the finishing positions were revised.
Soumillon said: "We were the better horse, but he got scared by the (racecourse video) screen and shifted out.
"My horse was on the lead and got a little unbalanced - the screen scared him, but we were the best horse."
De Kock was not surprised The Apache lost the feature race in the stewards' room.
"When I initially saw it on the internet and they showed the head-on I thought they would review the race," De Kock told At The Races.
"There was one movement off the fence and then he kept on going, with his stick in the left hand, it definitely unbalances the other horse.”
Side Glance, trained by Andrew Balding, ran a smashing race to finish third, but the other British challengers fared less well.
Grandeur (seventh), Mull Of Killough (eighth), Guest Of Honour (ninth) and Hunter's Light (10th) all failed to trouble the judge.
Ryan Moore said of the Godolphin-owned Hunter's Light: "Unfortunately, my horse was hanging badly left the entire way and he couldn't get himself out."
Connections of Dank highlighted the filly's sharp turn of foot as being a key weapon after she ran amok in the Beverly D.
The Michael Stoute-trained four-year-old scorched to a four-and-a-quarter-length victory over fellow British raider Gifted Girl.
Dank was adding to her gains in Ireland, where she easily won the Kilboy Estate Stakes at the Curragh in July.
Owner-breeder James Wigan told Daily Racing Form: "She has such a great turn of foot.
"Obviously she has improved over the last year."
Moore said of his mount: "She's been real aggressive all year.
"She was in excellent condition coming into this, and when she kicked in it was all over."
Jockey Tom Queally was delighted by the performance of the Paul Cole-trained Gifted Girl.
He said: "She ran a super race. There's still more to come for her."
Irish raider Duntle, who defeated Dank in the Duke of Cambridge Stakes, was a disappointing seventh.
Yeager, a stablemate of Grandeur, also struggled in the Grade One Secretariat Stakes over a mile and a quarter.
Despite having won his last two races, the Jeremy Noseda-trained colt finished 10th of the 13 runners under Moore.
First Cornerstone, trained in Ireland by Andrew Oliver, shaped a little better in eighth spot.
The race was won by the Michael Maker-trained Admiral Kitten.
Dandino overcame considerable trouble in running to see off Suntracer by half a length in the American St Leger.
Trainer Marco Botti was securing his second consecutive triumph in the race after Jakkalberry had struck 12 months ago.
Moore said: "I thought I'd just sit third and keep it simple, but the boys were on top of me the entire time.
"There were quite a few changes of plan. I was locked in the whole race, but he was the best horse.
The Michael Bell-trained Wigmore Hall missed the break under Jamie Spencer and could finish only fifth.