There was a 4-player league played by

伊藤友恵 = Ito Tomoe       .---  0-3
小川誠子 = Ogawa Tomoko    +.-+  2-1
小林千寿 = Kobayashi Chizu ++.+  3-0
鈴木津奈 = Suzuki Tsuna    +--.  1-2

Kobayashi Chizu is challenger.

Kobayashi Chizu was also challenger last year.
The other three players won the second preliminaries:

Ito Tomoe beats Inoue Machiko
Ogawa Tomoko beats Shiratori Sumiko
Suzuki Tsuna beats Tanaka Chieko
