Muhaarar confirmed his status as the top six-furlong sprinter in Europe with a scintillating display in the Qipco British Champions Sprint Stakes at Ascot.
Winner of the Commonwealth Cup, the July Cup and Prix Maurice de Gheest, the Charlie Hills-trained three-year-old showed he has no peers at that distance by destroying the opposition.
Always up with the pace and travelling sweetly for Paul Hanagan, the 5-2 favourite quickened impressively to score by two lengths from Twilight Son, with Danzeno third and The Tin Man fourth.
It appears Muhaarar has run his last race, with Sheikh Hamdan saying: "We had been thinking of America (Breeders' Cup Mile), but whereas European sprinters race in a straight line, in America they go round a bend and that tends to slow the Europeans up, and at Keeneland it is one furlong and then turn and turn.
"Muhaarar had three Group One races in six weeks and then we decided to give him a break to go for this race. It's a special day for the horses and the crowd and we wanted him to be here."
Corey Brown was banned for two days (October 31 and November 3) for careless riding on seventh-placed Emperor Max.
Simple Verse (5-1) won her second Group One race in rather less controversial circumstances with a game display in the Qipco British Champions Fillies & Mares Stakes.
Demoted after being first past the post in the Ladbrokes St Leger and reinstated on appeal, the Ralph Beckett-trained filly was a worthy winner as she wore down Journey in the hands of Andrea Atzeni.
Frankie Dettori stole a handy lead on John Gosden's supplemented charge, but Simple Verse's stamina kicked in and she asserted close home to win by three-quarters of a length.
Dettori had earlier continued his stellar season when striking on Flying Officer (6-1) in the Qipco British Champions Long Distance Cup.
The Derby and Arc-winning rider brought the Gosden-trained five-year-old with a great run in the straight to lead two out and win by a length from Clever Cookie.
Boylesports gave Flying Officer a 10-1 quote for the Gold Cup, for which William Hill went 12-1.
Ryan Moore was handed a four-day suspension for careless riding on third-placed Wicklow Brave, while Vincent Cheminaud was banned for one day (October 31) for weighing in 2lb light on the unplaced Clondaw Warrior.
Apprentice Edward Greatrex enjoyed his finest hour when steering Godolphin's Musaddas (7-1) to victory in the Balmoral Handicap.
Son of jumps trainer Warren Greatrex, the 5lb claimer had the Saeed bin Suroor-trained bottom weight quickly out of the stalls to lead.
He went on to win readily by a length and a half from Gm Hopkins.
Meanwhile, Silvestre de Sousa was officially crowned champion Flat jockey.
The unassuming Brazilian has fought his way to the top of the tree just 12 months after losing his job with Godolphin.
De Sousa, 34, was the only jockey to reach three figures in the first year of the revamped title and had the crown tied up several weeks ago.
He received his Stobart-backed trophy from the now-retired three-times title holder Richard Hughes and Lester Piggott, together with a cheque for £25,000 - of which he is to donate £3,000 to stalls handlers - and has had to pinch himself.
"It's a bit surreal really," he said. "I tried to put the idea of winning the champion jockey title to the back of my mind while it was still in the balance, but now it feels great.
"I've always believed I had the ability to win the championship and, thanks to the owners and trainers who have supported me this season, I've proven I can."
