Ryuka Yamanaka - Boxing Rankings

{"name":"Ryuka Yamanaka","historyByOrg":{"WBA":[],"WBC":[],"IBF":[{"month":"2017-02","rank":7,"weightClass":"Minimumweight"},{"month":"2017-03","rank":7,"weightClass":"Minimumweight"},{"month":"2017-04","rank":6,"weightClass":"Minimumweight"},{"month":"2017-05","rank":6,"weightClass":"Minimumweight"},{"month":"2017-06","rank":6,"weightClass":"Minimumweight"},{"month":"2017-07","rank":6,"weightClass":"Minimumweight"}],"WBO":[]}}