Sinead Diver, the Belmullet native who now represents Australia, finished fifth in the New York Marathon in a time of two hours, 26 minutes and 23 seconds.
Joyciline Jepkosgei stormed to victory in a time of 2:22:38, the second fastest female time in New York history, with Geoffrey Kamworor's victory in the men’s race making it a double for Kenya
42-year-old Diver finished strongly and was just two seconds behind fourth-placed Nancy Kiprop from Kenya, with the top four women hailing from East African nations.
The time was two minutes over her personal best, set in London six months ago, but represented the best Irish performance in the event since Mark Carroll took sixth place in the men's race in 2002.
Diver's seventh-place performance in London has almost certainly sealed a place in the Tokyo Olympics.
The mother of two, who still works full-time as a software developer, only took up running at 33.