 It was the last race until 1920 , as a result of the outbreak of the First World War , and first time since 1853 that there was a break in the annual tradition . During the conflict , at least 42 Blues were killed , including five of the 1914 participants : Dennis Ivor Day , cox L. E. Ridley , John Andrew Ritson and Gordon Garnett of the Cambridge crew , and Reginald William Fletcher from the Oxford boat . 
