Andrew Balding enjoyed Group Two success as Shadn landed the Criterium de Maisons-Laffitte.
Eight contested this six-furlong race in very soft ground, with Sir Boris soon in front.
Sir Boris was still there with a furlong and a half to run, but Shadn and Pierre-Charles Boudot swept by with Devil and this pair fought out the finish.
At the line, Shadn just prevailed by a head from Devil, with Sir Boris taking third spot.
The daughter of No Nay Never, had previously finished two lengths third to Pierre Lapin, in the Mill Reef Stakes.