Great Britain's Jo Pavey managed to recover from an illness to win the Bupa London 10,000 and scoop the British 10km road title on Monday.
The 41-year-old, who won European 10,000m gold last year, felt sick the night before, but decided to compete after undergoing a warm-up.
The long-distance runner managed to cross the finish line in 32 minutes, 56 seconds, while 20-year-old Rebecca Murray came second.
"It was a real gamble to run but I'm so glad I did," BBC Sport quotes Pavey as saying. "To win after a night like that is surreal."
Andy Vernon, 29, won the men's race in a personal best time of 28 minutes, 38 seconds.
