Chad Johnson's Daughter -- Destroys JR Olympics ... Wins Gold Medal In 800m

Chad Johnson's daughter Cha'iel continues to make a mockery of the youth track & field world ... 'cause she just blew through everyone at the 800m Jr Olympic final.

Cha'iel just won gold at the Junior Olympic Track & Field Championships in Jacksonville posting a final time 2:27.13 ... almost a full three seconds faster than the lil tykes looking at her back.

Check out the vid ... and remember, kids ... by just participating you're a super special winner.

Cha'iel just gets to keep the medals.