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This page contains statistics about all hands won in the 71st Inter High School Mahjong Championships. Both the team and individual tournaments, on both prefectural and national level, are taken into account.


Yaku
Yaku Occurence rate Average han Average hand value Effective Han Effective hand value
Aka Dora 0.4635 1.3356 4.8562 0.619 2.2508
Dora 0.3968 1.488 4.896 0.5905 1.9429
M. Tsumo 0.3333 1 4.3714 0.3333 1.4571
Tanyao 0.3016 1 3.8842 0.3016 1.1714
Riichi 0.2444 1 5.1818 0.2444 1.2667
Pinfu 0.1968 1 3.7903 0.1968 0.746
Iipeiko 0.127 1 5.3 0.127 0.673
Ippatsu 0.127 1 5.125 0.127 0.6508
Sanshoku 0.1206 1.8158 4.9474 0.219 0.5968
Ura-Dora 0.0984 1.9677 6.129 0.1937 0.6032
Ittsuu 0.0667 1.6667 5.5238 0.1111 0.3683
Honitsu 0.0603 2.4737 5.7368 0.1492 0.346
Chun 0.0603 1 3.8421 0.0603 0.2317
Rinshan 0.054 1 4.7647 0.054 0.2571
Chiitoi 0.0476 2 4.5333 0.0952 0.2159
Chinitsu 0.0317 5.8 10.1 0.1841 0.3206
San ankou 0.0317 2 7.9 0.0635 0.2508
Haku 0.0317 1 5.5 0.0317 0.1746
Hatsu 0.0317 1 3.9 0.0317 0.1238
Round South 0.0254 1 4.875 0.0254 0.1238
Double Riichi 0.0222 2 5.4286 0.0444 0.1206
Chanta 0.0222 1.8571 4.1429 0.0413 0.0921
Seat South 0.0222 1 4.2857 0.0222 0.0952
Seat West 0.0222 1 2.8571 0.0222 0.0635
Toitoi 0.019 2 8.8333 0.0381 0.1683
Round East 0.019 1 3.6667 0.019 0.0698
Junchan 0.0159 3 8.6 0.0476 0.1365
Haitei 0.0127 1 6.25 0.0127 0.0794
Seat East 0.0127 1 4.25 0.0127 0.054
Seat North 0.0095 1 4.3333 0.0095 0.0413
Shosuushi 0.0063 13 13 0.0825 0.0825
San kantsu 0.0063 2 10.5 0.0127 0.0667
Sanshoku doukou 0.0063 2 7.5 0.0127 0.0476
Chankan 0.0063 1 6 0.0063 0.0381
Suu ankou 0.0032 13 13 0.0413 0.0413
Kokushi 0.0032 13 13 0.0413 0.0413
Chinroutou 0.0032 13 13 0.0413 0.0413
Daisangen 0.0032 13 13 0.0413 0.0413
Ryanpeiko 0.0032 3 8 0.0095 0.0254
Shousangen 0.0032 2 10 0.0063 0.0317
Honroutou 0.0032 2 8 0.0063 0.0254
Win rate by position
Seat Win rate
East 0.2907
South 0.2151
West 0.2703
North 0.2238
Hand value distribution
Value Rate
1 han 0.1144
2 han 0.1085
3 han 0.2610
4 han 0.2053
5 han 0.0674
Haneman 0.1202
Baiman 0.0821
Sanbaiman 0.0117
Yakuman 0.0293
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