Keisuke Nakayama - Boxing Rankings

{"name":"Keisuke Nakayama","historyByOrg":{"WBA":[],"WBC":[],"IBF":[{"month":"2018-01","rank":12,"weightClass":"Flyweight"},{"month":"2018-02","rank":13,"weightClass":"Flyweight"},{"month":"2018-03","rank":13,"weightClass":"Flyweight"},{"month":"2018-04","rank":13,"weightClass":"Flyweight"},{"month":"2018-05","rank":13,"weightClass":"Flyweight"},{"month":"2018-06","rank":13,"weightClass":"Flyweight"}],"WBO":[{"month":"2018-02","rank":15,"weightClass":"Flyweight"}]}}