Sumgong, who also won the Olympic marathon title in Rio last summer, has been suspended pending the test on her B sample after an initial test was positive for EPO
The 31-year-old soldier collapsed three miles from the finish line during last month's race
David Seath had hoped to raise £250 for Help for Heroes and had nearly reached half of his target by the time of the race
David Seath's friends are planning on walking the final three miles of the race in his honour
Find out what time the race starts, and how to track your friends' progress
Thirty-five years ago, London staged its first marathon, and tomorrow another 37,000 people will undertake the gruelling course. A heroic achivement? Our man, who was there at the very beginning, wonders if it hasn't become a glorfied fun-run. After all, he says the real action has now gone 'ultra'
Alex Johnson presents his round-up of this week's property news, including cardboard houses and children's wish lists
Temperatures are expected to reach a high of 11 degrees Celsius for Sunday’s race
Whether it's budget accommodation you're looking for, or five star luxury
Hundreds of upmarket fast-food outlets opened this year, explaining how as a nation we threw away £12.5 bn on burgers
Farah, who lit up the Olympic Stadium last summer, has admitted that the Games in Glasgow are not on his list and his participation depends on how the Marathon goes
Kenyan breaks the previous record by 15 seconds
Londoner shakes off indifferent 2013 form to electrify 60,000 crowd with T54 mile triumph
He watches the races over and over and still can’t believe it. Now Britain’s golden paralympian returns to the scene of his triumphs
David Cameron declared today that Londoners stood “shoulder to shoulder” with the people of Boston as he visited the site of last month’s marathon bomb blast.
Double Olympic champion fancies a crack at Steve Jones' 28-year-old British record of two hours seven minutes 13 seconds