The 21st Boat Race, an annual side-by-side rowing race between crews from the Universities of Oxford and Cambridge along the River Thames, took place on 14 March 1864. Umpired by Joseph William Chitty, Oxford won by nine lengths in a time of 21 minutes 4 seconds, the fastest winning time since the event was held on The Championship Course in 1845. The race, whose start was moved in order to avoid interruptions from river traffic, was witnessed by the Prince of Wales.