Hitomi Niiya, who has been active in track and field events such as participating in the 10000m women's track and field at the Tokyo Olympics, will re-challenge the marathon in March.

Shintani has been active in track events, such as setting a new Japanese record of 30 minutes 20 seconds 44 in the women's 10,000 meters at the Japan Championships in Athletics and participating in last year's Tokyo Olympics in this event.

Shintani's affiliation has announced that he will participate in the Tokyo Marathon in March.

Shintani won the first marathon in 2007 at the 1st Tokyo Marathon with a time of 2 hours 31 minutes 1 second, and then set a personal best of 2 hours 30 minutes 58 seconds at Nagoya International in 2009. I have been away from the marathon for 13 years since the women's marathon.

Once in 2014, Shintani, who retired from active duty and became an office worker, returned to active duty after a blank of about four years, and continued to set a good record under the guidance of former Olympic athlete Masato Yokota of the same grade. I came out to.

In January, he set a new Japanese record of 1 hour, 6 minutes and 38 seconds in the half marathon, showing his strength in road races.