About GPC
Good Players Club is run by Katayama Masayuki and Baba Hirokazu and organizes public leagues and tournaments throughout Japan. Anyone who is a ‘productive member of society’, not a Jangoro (basically a hardcore mahjong gambler) and agree with their charter:

1: Good Players appreciate their opponents.
2. Good Players only criticize themselves.
3. Good Players have good humour.

are able to join.

In addition to their public leagues, they have a Chomeijin League in Tokyo and Kansai that’s only open to celebrities.

GPC 2015 - 1 out of 9 Sessions Played
RankNameTotalGames Played
1Benjamin Boas (Mahjong Researcher)152.44
2Daisuke Takahata (Sega)125.94
3Koshiba Tetsuya(Mangaka)87.74
4Kazuhiko Tsuchiya(Announcer)79.14
5Hirokazu Baba(Writer)57.41
6Nobuyuki Fukumoto(Mangaka)39.84
7Nao Oikawa(Actress)29.94
8Tsuyoshi Koyama(Voice Actor)28.44
9Shinichi Oota(Keirin Cyclist)24.14
10Mitsuki Kono(Igo Professional)18.84
11kouji Shinasaka(Mangaka)14.84
12Manabu Senzaki(Shogi Professional)2.42
13Yoshitaka Munehiro(Horse Racing Pundit)-4.53
14Keiji Hanasaki(Author)-40.91
15Tomihiko Tokunaga(Sriptwriter)-564
16Ryan Morris(Translator)-59.44
17Masayuki Katayama(Mangaka)-60.12
18Hiroyuki Murta(Mangaka)-82.24
19Ginji Hideo(Singer)-153.64
20Eri Mizuki(Substitute)-2163
Full results: https://docs.google.com/spreadsheets/d/1VFiFgQgZUNGw4F84q1uKOFpvm-ekFKQUKFsPSWLNIJY/edit?usp=sharing