Lent Bumps

The Lent Bumps (also Lent Races, Lents) are a set of rowing races held annually on the River Cam in Cambridge. They began in 1887, after separating from the May Bumps, which are bumping races held in mid-June. Prior to the separation there had been a single set of annual bumps dating from its inception in 1827. The races are open to all college boat clubs from the University of Cambridge, the University Medical and Veterinary Schools and Anglia Ruskin Boat Club. The Lent Bumps take place over five days (Tuesday to Saturday) at the end of February /start of March and are run as bumps races.

The most recent in the series was the Lent Bumps 2017, which were held in 28 February to 4th March 2017.

The races are run in divisions, each containing 17 crews. The number of crews in each bottom division varies yearly depending on new entrants. Each crew consists of eight rowers and one coxswain. Unlike the May Bumps, rowers trialling for places in university crews are not allowed to take part in the Lents. A total of 121 crews took part in 2012, totalling around 1100 participants. There are currently four divisions for men's crews (referred to as M1, M2 ... M4) and three divisions for women's crews (similarly W1–W3). The divisions represent an overall race order, with Division 1 at the top. The ultimate aim is to try to finish Head of the River (also said as gaining the 'Headship'), i.e. first position in Division 1.

At the start, signalled by a cannon, each crew is separated by a distance of about 1½ boat lengths (approximately 30 m or 90 ft). Once the race has begun, a crew must attempt to catch up with the crew ahead of it and bump (physically touch or overtake it) before the crew behind does the same to them. A crew which bumps or is bumped must pull to the side of the river to allow other crews to continue racing. A crew which neither bumps the crew ahead nor is bumped by the crew behind before crossing the finishing post is said to have rowed over. Any crew which bumps then swaps places with the crew that it bumped in the following day's racing. A crew which rows over stays in the same position. Crews finishing at the top of a division, the sandwich boat, row at the bottom of the next division to try to move up a division. The process is repeated over four days, allowing crews to move up or down in the overall order of boats. The finish order of one year's Lent Bumps is then used as the starting order of the following year's races.

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