The Niigata Nogyosai is staged annually by the Echigo Ojiya division of Japan Agricultural Co-Operative, usually on the last weekend of October, with the co-operation and assistance of the Niigata division of the All Japan Nishikigoi Promotion Association (also known as ‘Shinkokai’).

The 2017 show, to be staged on 28th and 29th October, will be the 57th time it has been held, making it the second longest running show after the Nagaoka Koi Show.

All Koi are pre-entered by Koi breeders, in their own name, the Nogyosai is a breeder only show.

Koi are entered into 11 variety classes:

  • Kohaku
  • Sanke
  • Showa
  • Utsurimono
  • Hikarimuji
  • Kinginrin
  • Goshiki / Koromo
  • Kawarigoi
  • Hikarimoyo
  • Doitsu
  • Tancho

There are 15 size classes starting from 15bu (for Koi below 15cm), and then every 5cm up to the over 80bu class (for Koi over 80cm).

The following prizes are awarded.


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Grand Champion (The Minister of Agriculture, Forestry and Fisheries Award)

One Koi is selected by secret ballot to awarded Grand Champion.  Each judge must first nominate one Koi.  To be awarded Grand Champion the Koi must achieve a 50%+ majority.  If necessary 2nd or 3rd rounds of voting may be undertaken.

Runner Up (Fisheries Agency Award)

The runner up prize is selected by ballot from the remaining highest nominated Grand Champion candidates.

Best is Size (Governers Award)

One Koi from each size class will be selected for the ‘Best in Size’ award. 15 Prizes.


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Special Award (The Niigata Prefectural Society of Nishikigoi President’s Award)

This prize is award to 1 non Gosanke in each of the following sets of sizes; 15bu-30bu, 35bu-50bu, 55bu-65bu, 70bu-0ver 80bu. 4 Prizes.

Jumbo Award

Awarded to the largest Koi entered into the show.  1 Prize.

General Prizes

Each size and variety class (total of 165 groups), will be awarded a ‘Primary First Prize’ and a ‘Secondary First Prize’.  In addition a number of second prizes will be awarded, the number determined by the number of entries in the group.


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