Keita Satoh, the U20 1500 m national record holder, will run in the New Balance Fifth Avenue Mile this weekend. Satoh, who recently relocated to Flagstaff, has improved his 1500 m time from 3:43.19 to 3:38.30 since April.

Satoh's participation marks a significant milestone, as he is the first Japanese man invited to the race in its 45-year history. The event will be his final race before returning to Japan for more track events and a break. Read more gear coverage.

The New Balance Fifth Avenue Mile will feature other top runners, including Titouan Le Grix from France with a 1500 m best time of 3:31.46 and Simon Koech from Kenya with a 3000 m steeplechase best time of 7:59.44. Related: Reekie Aims for Third New York Mile Title.

This original Runner World brief is based on reporting from Japan Running News. Visit the source for its complete reporting, context and any later corrections.