The Boat Races 2015 was won by Oxford's Osiris by fifteen lengths, making the overall record 21–20 in Cambridge's favour. The Boat Race is a side-by-side rowing competition between the University of Oxford (sometimes referred to as the "Dark Blues") and the University of Cambridge (sometimes referred to as the "Light Blues"). First held in 1829, the race takes place on the Championship Course, between Putney and Mortlake on the River Thames in south-west London. The rivalry is a major point of honour between the two universities; it is followed throughout the United Kingdom and broadcast worldwide. Oxford went into the race as champions,
Putney as Scio House Hospital for Officers, Putney. It has since been redveloped as a gated community of 70 neo-Georgian homes divided between two streets. Putney Heath is around less the nascent A3 road in size and rises to above sea level. Because of its elevation, from 1796 to 1816 Putney Heath hosted a station in the shutter telegraph chain, which connected the Admiralty in London to its naval ships in Portsmouth. One of 10 signal stations with telescopes making observation of the next station's signal, a message could be sent from the Admiralty to Portsmouth within 15 minutes. This was