Masters M50 100 metres hurdles world record progression explained

This is the progression of world record improvements of the 100 metres hurdles M50 division of Masters athletics.^[1]

Key:

Hand	Auto	Wind	Athlete	Nationality	Birthdate	Location	Date
	13.57		Walt Butler		21.03.1941		05.07.1991
	13.71		Walt Butler		21.03.1941		22.06.1991
	14.66		Charles Miller		28.07.1937		03.08.1989
14.7					05.02.1926		19.08.1978
15.1^[2]					05.02.1926		12.08.1977

Notes and References

1. Web site: Short Hurdles List. 16 May 2014.
2. http://www.mastershistory.org/International-Results/sweden1977s.pdf