The Group 1 Phoenix Stakes was next on the agenda, and George Washington won by 8 lengths from his stablemate Amadeus Mozart, despite having been slightly hampered at the start.

George Washington started as 6/4 favourite and won, beating subsequent Epsom Derby winner Sir Percy by 2½ lengths.

[3] In the Irish 2,000 Guineas, George Washington finished second, beaten two lengths by subsequent dual-Group 1 winner Araafa, who had been fourth at Newmarket.

George Washington's finishing acceleration was blunted by the heavy ground conditions, and following the race it emerged that he had pulled muscles, which ruled him out of Royal Ascot.

[2] After a disappointing run in which he came sixth behind Invasor in the Breeders' Cup Classic at Churchill Downs, Kentucky, in November 2006, George Washington was retired to stud at Coolmore, covering mares for a fee of €60,000.

[2] After it became apparent in March 2007 that George Washington had fertility problems, he was returned to training and replaced at Coolmore by Holy Roman Emperor, a three-year-old colt also by Danehill.

On his next outing he was ridden for the only time by Seamie Heffernan and finished third in the Eclipse Stakes at Sandown Park, one and a half lengths and a head behind Notnowcato and The Derby winner Authorized.