Masters W85 400 metres world record progression explained

This is the progression of world record improvements of the 400 metres W85 division of Masters athletics.

Key:

Hand	Auto	Athlete	Nationality	Birthdate	Location	Date
	1:41.63	Emiko Saito		13.03.1931	Chiba	29.04.2017
	1:49.46	Nina Naumenko		15.06.1925	Lignano	16.09.2011
	2:07.79	Patricia Peterson		14.04.1926	Sacramento	06.07.2011
	2:11.31^[1]	Josephine Gregg		1912	Tucson	1997
2:11.2		Matsue Nishiyama		07.03.1907	Kyoto	1992

References

Masters Athletics 400 m list

Notes and References

1. http://www.nsga.com/media/documents/national-results/top10-and-records/t-f-400mtop10.pdf