Runners' latest attempt to beat the college clock
It's a Cambridge University college tradition that dates back at least to the 1920s... where students try to run round the Great Court of Trinity College faster than the clock can chime at midday....
The Great Court Run featured as a memorable scene in the 1981 film Chariots of Fire...
Each year a few dozen students take on a race against time, trying to run 370 metres around the Great Court at Trinity College in Cambridge before the clock finishes its mid-day chimes.
The only person who has officially beaten the clock was David Cecil - also known as Lord Burghley - back in 1927. He was a notable runner at Cambridge - and went on to win gold in the 400m hurdles at the 1928 Olympics in Amsterdam.
Here's a full report by Stuart Leithes on this year's race and its history: