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.

The 20th Boat Race between crews from the University of Oxford and the University of Cambridge took place on the River Thames on 28 March 1863. Oxford won by 15 lengths in a time of 23 minutes 6 seconds. It took the overall record to ten wins each, the first time since the 1836 race that the scores were level. The race was the third to be held on the ebb tide, along the Championship Course in reverse, from Mortlake to Putney. It was the first time since the race was held in the fashion since the 1856 race.