The Championship Course from Mortlake to Putney on an ebb tide or from Putney to Mortlake on a flood tide. Since the Boat Race moved to this course in 1845, it has always been raced on a flood tide from Putney to Mortlake except in 1846, 1856 and 1863. The Wingfield Sculls is also raced from Putney to Mortlake. Most other events race on an ebb tide from Mortlake to Putney. In April 1869 the Harvard University Boat Club challenged Oxford University Boat Club to an "International University Boat-Race" of coxed fours on the Boat Race course. The event took place on 27
The Boat Race 1864 of Putney Bridge in order to reduce interruptions to the race from steamers. Indeed, both boat club presidents had issued a caution to the steamer captains, indicating that the race would be conducted on the ebb tide should any interruption take place which would risk the steamers becoming grounded at Mortlake. The finish was moved the corresponding distance upstream to maintain the traditional length of the race. Oxford rowed in the same boat as the previous race, which was constructed by J. and S. Salter while Cambridge utilised a new vessel built for them by Taylor of Newcastle. Oxford were