Aidan O’Brien notably had never trained a Breeders’ Cup Mile winner before Saturday. Maybe he had been sending horses that made too much sense. O’Brien got his first BC Mile win in a most unexpected manner when 73-1 shot Order of Australia prevailed Saturday in the Grade 1, $2 million grass race. O’Brien swept the trifecta with 11-1 Circus Maximus and 18-1 Lope Y Fernandez. :: Click to learn about our DRF's Free Past Performance program. Order of Australia paid $148.40, the second-highest Breeders’ Cup win payoff ever, behind only Arcangues' $269.20 in the 1993 Classic. Pierre Charles-Boudot, who earlier on the card guided Audarya to victory in the Filly and Mare Turf, rode his second winner on the day in the Mile, but only because Christophe Soumillon, who was named on Order of Australia, tested positive for Covid-19 and had to miss the Breeders’ Cup. Soumillon didn’t just miss out, the horse himself nearly did, too. Order of Australia, owing to his lack of accomplishment, was an also-eligible for the Mile and had been scheduled to start Friday in the Bryan Station Stakes. He only got into the field Thursday when One Master was scratched from the Mile because of a relatively minor physical problem. And though he was in the race, Order of Australia had a terrible post, 14, to say nothing of form lines that looked too soft for him to be a factor Saturday. Order of Australia’s two wins came in an allowance race over the all-weather surface at Dundalk and in a 1 ½-mile allowance race at The Curragh. He’d been a decent fourth earlier this year in the Irish Derby but was coming off a 47-length defeat in a Group 3 race in Ireland. All that went out the window Saturday. Halladay broke like a rocket and was sent to the front, going clear of Factor This as Order of Australia was away well from his outside gate, taking up a stalking position about two paths from the fence racing in fourth. The pace was moderate for the first quarter-mile, 23.48 seconds, with Halladay duplicating that fraction to get a half-mile in 46.97. Around the turn and back in the field, Lope Y Fernandez had to be steadied under Frankie Dettori as Casa Creed wandered into his path, a bit of trouble that caused lost momentum just as the lead group was revving up to fire off the turn into the homestretch. Halladay was in front to the furlong grounds, but pressing up to his outside was the impossible price horse Order of Australia. Circus Maximus came off the fence to make a run and was gaining, and Lope Y Fernandez split horses for a final thrust, but the wire came and the 73-1 shot was home. “Order of Australia is a fast horse,” Boudot said. “The mile is very good for him and the good ground was perfect.  “He’s a tricky horse as he needs some help to concentrate. I’m over the moon.”  :: Start earning weekly cashback on your wagering today. Click to learn more. Order of Australia’s winning time was 1:33.73, which translated into a 105 Beyer Speed Figure. Behind the trio of O’Brien-trained runners came Ivar, who loomed briefly before the eighth pole and finished a head in front of 2019 Mile winner Uni. In sixth was Halladay followed by Kameko, Factor This, Siskin, Raging Bull, Digital Age, Casa Creed, March to the Arch, and Safe Voyage. Three-year-old Order of Australia is by Australia out of Senta’s Dream, by Danehill, and was bred in Ireland by Whisperview Trading. He’s owned by Derrick Smith, Susan Magnier, Michael Tabor, and Anne Marie O’Brien. The colt now owns the distinction of being one of the most unlikely winners in the 37-year history of the Breeders’ Cup.