He was one of the Founding Fathers the Asian Amateur Athletic Association in 1973[1] and later served as the President of the Philippine Amateur Track and Field Association in two non-consecutive period; with the first tenure lasting from 1969 to 1981 and the second one from 1984 to 1991.
Sering resigned from his PATAFA post in 1991 in favor of Go Teng Kok.
[2] In 1984, Sering was the acting director of the Project Gintong Alay government sports program.
On February 14, 2002, Sering had a heart attack at his residence in BF Homes in Parañaque.
He was brought to the Alabang Medical Center in Muntinlupa where he was pronounced dead on arrival.