JAPAN.LEAGUEINC.
JWL/Staff
JWL2026 Staff

JWL2026Staff

The people behind the Japan Winter League. From planning to game day, this is the team that backs every player through a winter in Okinawa.

Leadership
Issei Washizaki
Representative Director
Issei Washizaki
Haruki Kawagoshi
Vice President
Haruki Kawagoshi
Rin Ohno
General Manager
Rin Ohno
Manato Chibana
Okinawa Representative
Manato Chibana
Takashi Shichijo
Secretary General
Takashi Shichijo
Ambassador
Kazumi Saito
Ambassador
Kazumi Saito
Mac Suzuki
Ambassador
Mac Suzuki

Operations

Hanako Oka
Head of Operations
Hanako Oka
Kazuma Dana
Staff
Kazuma Dana
Chen, Ying-Zhen / Jenna
SNS / Photography Staff
Chen, Ying-Zhen / Jenna

Advance / Koza

Ryoma Watanabe
Head Coordinator
Ryoma Watanabe
Alex Derhak
Coordinator
Alex Derhak
Anthony Bennett
Coordinator
Anthony Bennett
Aritz Garcia
Coordinator
Aritz Garcia
Naoki Yamagami
Pitching Coordinator
Naoki Yamagami

Tryout / Koza & Kadena

Hiroyuki Sakanashi
Head Coordinator
Hiroyuki Sakanashi
Katsuhisa Tanaka
Coordinator
Katsuhisa Tanaka
Tim Brown
Coordinator
Tim Brown

Performance Coordinators

Yoshimasa Suzuki
Performance Coordinator
Yoshimasa Suzuki
Yusuke Nagatake
Performance Coordinator
Yusuke Nagatake
Masafumi Nakano
Performance Coordinator
Masafumi Nakano

Analysts

Ryo Sasakoshi
Analyst
Ryo Sasakoshi
Kei Kanesawa
Analyst
Kei Kanesawa
Kentaro Hoshino
Analyst
Kentaro Hoshino

Guest Coaches & Trainers

Masahiro Sakumoto
Guest Coach
Masahiro Sakumoto
Akitoshi Shimukai
Guest Coach
Akitoshi Shimukai
Yuji Nerei
Guest Coach
Yuji Nerei
Hiroki Kochiyama
Guest Coach
Hiroki Kochiyama
Yuto Akagami
Guest Coach
Yuto Akagami
Kazunori Yagi
Guest Coach
Kazunori Yagi
Yuichi Kobayashi
Guest Coach
Yuichi Kobayashi
Mac Takashima
Guest Trainer
Mac Takashima
Daisuke Hoshikawa
Guest Analyst
Daisuke Hoshikawa
JWL

More about
the Japan Winter League.