The Nagaoka Koi Show is staged annually by the Nagaoka Nishikigoi Breeders Association, usually on the 2nd from last Sunday in the month, although the date is often moved slightly dependent on the proximity to the 23rd October, the anniversary of the Chuetsu Earthquake, as the shows shares the same venue as the earthquake commemoration.

Indeed, this year’s show will take place on Saturday 21st, and this year is the 64th staging of the show, the longest running Koi show in the world, although it seemingly has subsumed other shows along the way, and maybe the name changed to reflect the growing area.

The area of Nagaoka is really quite huge, in fact it’s larger than the 23 wards that make up Tokyo, and now covers the whole of Yamakoshi, Kawaguchi and even stretches all the way to the Japanese coast at Teradomari, hence Teradomari Koi Farm can be found entering Koi into the show.

Koi are entered into 9 different variety classes, these being:

  • Kohaku
  • Sanke
  • Showa/Utsurimono
  • Kinginrin (Gosanke)
  • Hikarimono (essentially all metallic Koi)
  • Goshiki
  • Koromo
  • Kawarimono (anything that doesn’t fall into other specified classes)
  • Doitsu (Gosanke)

There are 11 different size classes:

  • 15bu (up to 15cm)
  • 20bu (15.1cm to 20cm)
  • 25bu (20.1cm to 25cm)
  • 30bu (25.1cm to 30cm)
  • 35bu (30.1cm to 35cm)
  • 40bu (35.1cm to 40cm)
  • 45bu (40.1cm to 45cm)
  • 55bu (45.1cm to 55cm)
  • 65bu (55.1cm to 65cm)
  • 75bu (65.1cm to 75cm)
  • over 75bu (75.1cm and over)

The following major prizes are awarded:


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Grand Champion

Grand Champion is elected by secret ballot by all of the judges.  In the first round each judge will nominate 1 Koi.  A Koi will require over 50% of the votes to be deemed Grand Champion.  If no Koi wins 50% of the votes in the first round then further round of voting will be undertaken with those Koi with the highest number of votes until one receives 50%. (1 prize)

Wakagoi Champion

Wakagoi Champion is awarded to the best Koi in sizes 15bu to 45bu which are judged in plastic bags.  Head judges from each judging team will nominate a number of Koi as potential candidates for the Wakagoi Champion.  Individual judges will then vote for 1 of the nominated Koi by secret ballot. If no Koi wins 50% of the votes in the first round then further round of voting will be undertaken with those Koi with the highest number of votes until one receives 50%. (1 prize)

Best in Size

Best in Size is awarded to one Koi in each of the 11 size classes, irrespective of variety. (11 prizes)


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Senior Tategoi

One Koi will be selected from sizes 55bu to over 75bu as the Senior Tategoi. (1 prize)

Young Tategoi

One Koi will be selected from sizes 15bu to 45bu as the Young Tategoi. (1 prize)

First Prizes

A first prize will be awarded to one Koi in each size and variety class (99 prizes)


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Second Prizes

A number of second prizes will be awarded, each size and variety class.  The number of prizes awarded in each class depends on the number of Koi entered.

 


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