Henley Royal Regatta

Annual four-day series of rowing races held the first week in July on the River Thames, at Henley-on-Thames, Oxfordshire, Eng. The regatta was established in 1839; and in 1851 Prince Albert became its patron and gave the event its �royal� prefix. The regulation distance for the races is 1 mile 550 yards (2,100 m). Probably the most significant of the traditional Henley races are the Grand Challenge