Beamon's jump was a world record that eclipsed the previous record by 21 3/4 inches. The jump still stands as an Olympic record, and stood as a world  record until Mike Powell leapt 29' 4 1/2" at the 1991 World Championships in Tokyo.
Beamon practiced for years perfecting his jump.
( z1 practice :ARG0 ( z2 person :name ( z3 name :op "Beamon" ) ) :ARG1 ( z4 perfect :ARG0 z2 :ARG1 ( z5 jump :ARG0 z2 ) ) :duration ( z6 multiple :op ( z7 temporal-quantity :quant 1 :unit ( z8 year ) ) ) )