Muhaarar made it a hat-trick of Group One victories for the season when taking the Prix Maurice de Gheest at Deauville.
Having already won the inaugural running of the Commonwealth Cup at Royal Ascot, he followed up with a last-gasp success in the July Cup at Newmarket, propelling himself to the position of champion sprinter-elect.
As a winner over seven furlongs earlier in the season, the specialist six-and-a-half-furlong trip in France was never likely to prove a problem and trainer Charlie Hills expected it to be the perfect distance.
And so it proved, as a furlong out Andre Fabre's Esoterique appeared to be travelling better on Paul Hanagan's inside.
However, like all good horses, Muhaarar dug deep and eventually ran out a convincing winner, meaning his only defeat to date this season came in the French Guineas over a mile.
Gordon Lord Byron yet again exceeded expectations by finishing a fine third.
Richard Hannon's Coulsty was not beaten far just behind the placed horses, but stablemate Ivawood was bumped into on several occasions, losing all chance.
David O'Meara's Watchable was in the firing line throughout, but faded in the final 100 yards.
