Sifan Hassan followed up her debut marathon win in London with victory in Chicago in the second fastest time ever run by a woman.

Hassan’s time of 2 hours, 13 minutes and 38 seconds would have been a world record until two weeks ago, when Ethiopia’s Tigst Assefa ran 2:11:53 in Berlin.

“Fantastic,” the 30-year-old Dutchwoman said after running away from Kenya’s Chepngetich in the closing stages, though she admitted that she suffered in the last five kilometres.

“I was broken, I was in pain. I said: ‘I’m never running a marathon again’. I just wanted to stop,” she said.

Hassan also said she struggled with the early start time of 7am, set so that the runners could run fast times in the cooler morning conditions.

“I’m not a morning person and it was cold,” she said. “It was so hard. I couldn’t get warm. It only started to feel a bit better after five kilometres.”

The men’s race was won by Kelvin Kiptum in a world record time of 2:00:35, taking 34 seconds off the previous mark set by his fellow Kenyan Eliot Kipchoge.