The marathon returns as The Shamrock Sharks take on Grape Expectations.

55 boys attempt to surpass, in a single day, the total possible hours which an Eton house could commit to sport in one week! 💚💜

Furthermore, the House Captains will "run the gauntlet" of the entire gamut of suffering available. For those keen to follow this act of collective masochism the schedule is as follows and you will find our dedicated Twitter feed. Carpe Diem.

17:00-19:00: Football

19:00-21:00: Swimming

21:00-23:00: Basketball

23:00-01:00: Rackets

01:00-03:00: Badminton

03:00-05:00: Table Tennis

05:00-07:00: Fives

07:00-09:00: Golf

09:00-11:00: Tennis

11:00-13:00: Squash

13:00-15:00: Cricket

15:00-17:00: Rugby Sevens