There was a 4-player league played by

小林千寿 = Kobayashi Chizu  +--.  1-2
伊藤友恵 = Ito Tomoe        ++.+  3-0
鈴木津奈 = Suzuki Tsuna     +.-+  2-1
井上真知子 = Inoue Machiko  .---  0-3

Ito Tomoe is challenger.

