scored 700+ on math section of SAT when 8 year old

My son has followed Terence Tao and Lanhard Ng that became only three children
in the history of the Johns Hopkins’ Study of Exceptional Talent program to have achieved a score of 700 or greater on the SAT math section while just 8 years old. He became a SET member when he just turn 9 year old.
He also became state champion in Math League 2012 competition for 6 grade when he was only 9 year old.
He was the state 6th grade Math League competition 9th place in 2011 when he was only 8 year old.
He received invitation to attend the first Math League National Final at Stanford University in August 2012.