Watch out, Joyciline Jepkosgei, Ethiopia's Almaz Ayana is coming.

The IAAF announced today in a press release that Ayana, the world record holder and back-to-back Olympic and world gold medalist for 10K, will make her 13.1 mile debut at the Delhi Half Marathon on November 19. The course record is 1:06:54 and was set by Mary Keitany, the three-time NYC Marathon champion, in 2009. She will face defending champion Worknesh Degefa, who owns a PB of 1:06:14. 

It would present an exciting scenario for track fans if Ayana were able to adapt right away to the half marathon distance, as she has already proved herself to be on a different level than the rest of the world in the 10K -- much as Kenya's Jepkosgei has in the half marathon after breaking the world record twice this year. The record currently stands at 1:04:51; Jepkosgei is the only woman in history to break 65 minutes, and she's done it twice.

The 25-year-old Ayana has never raced longer than 10K, and in fact set the world record of 29:17.45 at the 2016 Olympic Games in just her second-ever 10K on the track.

Geoffrey Kirui, the men's world marathon champion this summer in London, headlines the men's field in India.

The winners of the Delhi Half Marathon will receive $27,000.