{"name":"Kaisei Matsumoto","historyByOrg":{"WBA":[{"month":"2025-07","rank":null,"weightClass":null},{"month":"2025-08","rank":null,"weightClass":null},{"month":"2025-09","rank":null,"weightClass":null},{"month":"2025-10","rank":null,"weightClass":null},{"month":"2025-11","rank":null,"weightClass":null},{"month":"2025-12","rank":null,"weightClass":null}],"WBC":[{"month":"2025-05","rank":null,"weightClass":null},{"month":"2025-06","rank":null,"weightClass":null},{"month":"2025-07","rank":null,"weightClass":null},{"month":"2025-08","rank":null,"weightClass":null},{"month":"2025-09","rank":null,"weightClass":null},{"month":"2025-10","rank":null,"weightClass":null}],"IBF":[{"month":"2025-06","rank":null,"weightClass":null},{"month":"2025-07","rank":null,"weightClass":null},{"month":"2025-08","rank":null,"weightClass":null},{"month":"2025-09","rank":null,"weightClass":null},{"month":"2025-10","rank":null,"weightClass":null},{"month":"2025-11","rank":null,"weightClass":null}],"WBO":[{"month":"2025-07","rank":null,"weightClass":null},{"month":"2025-08","rank":null,"weightClass":null},{"month":"2025-09","rank":null,"weightClass":null},{"month":"2025-10","rank":null,"weightClass":null},{"month":"2025-11","rank":null,"weightClass":null},{"month":"2025-12","rank":null,"weightClass":null}]}}
Kaisei Matsumoto is not currently in the monthly rankings.
