 Sir Ranulph Fiennes, centre, faced searing 30�C temperatures |
British adventurer Sir Ranulph Fiennes has struggled through the fourth leg of his seven marathons in seven days challenge. Sir Ranulph and running companion Mike Stroud fought Singapore's searing heat to post the slowest time of their four runs so far.
"Our performance rate is dropping," Sir Ranulph told reporters waiting at the finish line.
"If it would have been possible, we would have left Singapore to the last because the whole thing is that you must not kill yourself too early." Sir Ranulph, who recently underwent a double heart bypass operation, finished the 26.2-mile race in five hours and 24 minutes, while Dr Stroud, who stopped running altogether at one point and walked, took six hours, five minutes.
When asked how he felt after the race, the adventurer said: "Not good, unfortunately. "There's no point in saying wonderful when it's not wonderful."
Dr Stroud said the marathon was the "hardest thing he'd ever done and he felt terrible".
Despite admitting that Singapore was the toughest leg yet, the pair have vowed to continue their challenge.
Giles Whittell, a journalist who is travelling with the adventurers, said: "Sir Ranulph said he would be able to finish the challenge and there's no question they both will start together in London on Thursday.
"Whether they complete it together is an open question."
After London, the sixth race is scheduled for Cairo, before starting the final leg with the thousands of runners contesting New York's annual marathon on 2 November.
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There's no question they both will start together in London on Thursday 
Completed marathons 
