▁relay ▁squad . ▁ ▁As ▁a ▁young ▁runner , ▁she ▁set ▁the ▁still ▁standing ▁American ▁record ▁for ▁ 9 - 1 0 - year - old ▁girls ▁in ▁the ▁ 4 0 0 ▁meters . ▁ ▁Hend erson ▁pre pped ▁at ▁Mor se ▁High ▁School ▁in ▁San ▁Diego ▁' 0 1 . ▁She ▁is ▁the ▁only ▁four - time ▁ 4 0 0 ▁meters ▁California ▁State ▁Champion ▁in ▁the ▁state ' s ▁history ▁from ▁ 9 8 – 0 1 . ▁At ▁age ▁ 1 7 , ▁she ▁set ▁a ▁US ▁junior ▁class , ▁as ▁well ▁as ▁high ▁school ▁national ▁record ▁( since ▁broken ), ▁at ▁ 5 0 . 7 4 ▁in ▁the ▁ 4 0 0 ▁m ▁at ▁the ▁C IF ▁California ▁State ▁Me et . ▁In ▁ 2 0 0 0 , ▁still ▁in ▁high ▁school , ▁she ▁was ▁named ▁to ▁the ▁US ▁Olympic ▁track ▁and ▁field ▁team . ▁Selected ▁as ▁an ▁alternate ▁( Pool ) ▁for ▁the ▁ 4 ▁× ▁ 4 0 0 ▁m ▁squad ▁but ▁did ▁not ▁run . ▁That ▁year ▁she ▁was ▁named ▁the ▁national ▁Girl ' s ▁" High ▁School ▁Ath lete ▁of ▁the ▁Year " ▁by ▁Track ▁and ▁Field ▁News . ▁ ▁After ▁gradu ating ▁from ▁high ▁school ▁in ▁ 2 0 0 1 ▁she ▁accepted ▁a ▁scholar ship ▁to ▁attend ▁U CLA . ▁While ▁at ▁U CLA ▁she ▁went ▁on ▁to ▁be ▁a ▁five - time ▁Pac - 1 0 ▁champion . ▁In ▁ 2 0 0 4 , ▁she ▁placed ▁second ▁at