SUCCESS Days caused an upset when making virtually all of the running to land the Group 3 Kilfrush Stud Royal Whip Stakes at the Curragh.

The race looked set to be a clash between Ascot Champion Stakes hero Fascinating Rock and Derby runner-up US Army Ranger, but Ken Condon's charge did not read the script, setting the gallop under Shane Foley and pulling into a clear lead entering the home straight.