She held off competitors from the likes of compatriot Brigid Kosgei, who was bidding to win the occasion for a 3rd consecutive 12 months however might solely handle a fourth-place end.
Jepkosgei, who gained the New York Marathon in 2019, smashed her personal private greatest to turn into the seventh-fastest girl in historical past over the space.
She completed forward of Ethiopia’s Degitu Azimeraw and Ashete Bekere, who completed second and third respectively.
Within the males’s elite race, Sisay Lemma of Ethiopia was a snug winner, ending in a time of two hours, 4 minutes and one second.
He raced 27 seconds forward of Kenya’s Vincent Kipchuma in second, with Mosinet Geremew coming in third.
In the meantime, Switzerland’s Marcel Hug and Manuela Schar accomplished a double for his or her nation within the elite wheelchair occasions.
Each set new course information, with Hug profitable the lads’s race in a single hour, 26 minutes and 27 seconds.
Schar then set a brand new course report within the ladies’s race, ending in a time of 1 hour, 39 minutes and 52 seconds.
In near-perfect situations, about 36,000 members tackled the standard course from Greenwich to Westminster for the primary time in additional than two years.
Final 12 months’s marathon was held on a modified course — 19.6 laps of St James’s Park within the shadow of Buckingham Palace — and solely staged the elite races as a result of pandemic.