In one, called "The Caddy, " you are asked to calculate yardages to flagsticks while simultaneously clicking on virtual golf clubs in a bag that need "cleaning" on random time schedules.

WSJ: The Punishment of Winter Workouts | Golf Journal by John Paul Newport

To make the weight, Mr Ellicock packed a sleeping bag, climbing rope, biology textbook, ankle weights and "random bits of clothing".

BBC: London Marathon: Ex-paratrooper beats backpack record

To make the weight, Mr Ellicock is packing a sleeping bag, climbing rope, biology textbook, ankle weights and "random bits of clothing".

BBC: London Marathon: Ex-paratrooper runs for record