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 in 1951; the 1951 race was re-rowed on the following Monday. In 1984 the Cambridge boat sank after colliding with a barge before the start of the race, which was then rescheduled for the next day. In 2016, at Barnes Bridge, Cambridge women began to sink and received advice from the umpire to pull to the side. The Cambridge cox indicated that she wanted to continue to complete the course and was allowed to do so. The course is 4 miles and 374 yards (6.779 km) from Putney to Mortlake, passing Hammersmith and Barnes; it is sometimes referred to as