One of the 500 stretchers is put to good use

68 ambulances to assist tired and injured competitors

76 pubs on the 26.2 mile course, 52 of which will be holding charity bashes

88lbs of petroleum jelly to protect runners' nipples and crotches from severe chaffing during at least three hours of high-intensity exercise.

300 litres of blue line paint to mark out the course

440ft of urinal trough in which male runners can relieve themselves

500 stretchers for the ones who are really suffering

950 portable toilets around the course for runners

1,100 race marshalls at the start

120,000 isotonic energy drinks will be drunk

1,200 St John Ambulance volunteers to help the injured

2,500 race marshalls at the finish

20,900m of barriers to keep crowds off the course

32,000 finisher's medals

32,000 goody-bags for runners who complete the main race

32,000 sandwiches given out to finishers on the Mall

120,000 packs of Liquid Power energy drink distributed on the course

...and 710,000 bottles of water distributed at the start, on the course and at the finish.