Diktaean (, ; foaled 10 March 2018) is a Japanese Thoroughbred racehorse. He has competed since 2021, recording eleven wins from thirty-three starts, including the Tokyo Daishoten (GI) in 2025, the Korea Cup (G3) in 2025 and (G2) in 2026; the Urawa Kinen (JpnII) in 2023, the Nagoya Grand Prix (JpnII) in 2023, and the Hakusan Daishoten (JpnIII) in 2024. His victory in the Korea Cup was the first overseas dirt graded stakes win by a NAR-affiliated horse. His victory in the Tokyo Daishoten was the first by a NAR-affiliated horse since Adjudi Mitsuo in 2005. He was named NAR Grand Prix Horse of the Year and Best Four-Year-Old and Up Male in 2025. His name refers to the Dictaean Cave, the birthplace of Zeus in Greek mythology, chosen in association with his dam's name Medeia.

Background Diktaean is a dark bay gelding bred in Abira, Hokkaido, by Oiwake Farm. He was sired by King Kamehameha, a son of Mr. Prospector, and his dam was Medeia (), a mare who won six graded races including the 2013 JBC Ladies Classic. His damsire was King Halo. He is owned by G1 Racing and was initially trained by Hideaki Fujiwara at the JRA's Ritto Training Center.

Racing career

2021: three-year-old season Diktaean debuted on 1 May 2021 in a maiden race on the turf at Hanshin Racecourse, finishing last of fifteen. He finished unplaced in two further JRA maiden races before being transferred to Teruya Tsunoda's stable at Nagoya Racecourse in August. He won two consecutive races at Nagoya in October, then was transferred back to JRA training under Tatsuya Yoshioka at Ritto in December.

2022: four-year-old season Diktaean won a 1-win class race on the dirt at Kokura Racecourse on 6 February. He won the Isesaki Tokubetsu (2-win class) at Tokyo Racecourse on 29 October and the Banshu Stakes (3-win class) at Tokyo on 19 November, completing consecutive victories to gain open-class status.

2023: five-year-old season Diktaean finished ninth in the Tokai Stakes (GII) on 22 January and fourth in the Nagoya Castle Stakes (Open) on 19 March. On 30 April, he won the Brilliant Stakes (Listed) at Tokyo. He finished fourth in the Brazil Cup (Listed) on 22 October. On 23 November, he won the Urawa Kinen (JpnII) at Urawa Racecourse, defeating Mitono O by 0.5 seconds. On 21 December, he won the Nagoya Grand Prix (JpnII) at Nagoya in a course-record time of 2:12.4, defeating Grand Bridge by 0.4 seconds.

2024: six-year-old season Diktaean finished fourth in the Diolite Kinen (JpnII) on 6 March, fourth in the Kawasaki Kinen (JpnI) on 3 April, and fourth in the Nagoya Grand Prix (JpnII) on 6 May. He finished third in the Teio Sho (JpnI) at Oi Racecourse on 26 June. On 23 September, he won the Hakusan Daishoten (JpnIII) at Kanazawa Racecourse by 1.0 seconds. He finished fourth in the Urawa Kinen (JpnII) on 20 November.

2025: seven-year-old season On 15 January, Diktaean was transferred to Katsunori Arayama's stable at Oi Racecourse. His JRA registration was cancelled on 17 January. He finished fourth in the Diolite Kinen (JpnII) on 12 March and second in the Kawasaki Kinen (JpnI) on 9 April. He finished fourth in the Teio Sho (JpnI) on 2 July.

On 7 September, Diktaean contested the Korea Cup (G3) at Seoul Racecourse. He won by 0.2 seconds, defeating the Hong Kong-trained Chancheng Glory. This was the first overseas dirt graded stakes victory by a NAR-affiliated horse, and the first by any Japanese NAR horse since Cosmo Bulk won the Singapore Airlines International Cup in 2006.

On 29 December, Diktaean won the Tokyo Daishoten (GI) at Oi Racecourse at odds of 77.3 (7th favourite), defeating Mikki Fight by 0.0 seconds. This was the first Tokyo Daishoten victory by a NAR-affiliated horse since Adjudi Mitsuo in 2005. Trainer Katsunori Arayama became the first person to win the race as both jockey (White Silver) and trainer, and completed a father-son double with his late father Tokuichi Arayama.

2026: eight-year-old season Diktaean finished fifth in the Kawasaki Kinen (JpnI) on 8 April. He finished third in the Teio Sho (JpnI) at Oi on 1 July. He resumed his season at the Korea Cup in September. The horse got off to a slow start and raced from the back of the pack, but moved up to second place just before the final straight and overtook another Japanese horse, Sunday Funday, who had led the race from the start to win by a six-length margin on the line.

Statistics Record current as of 6 September 2026.

Date Distance (Condition) Race Class Course Odds(Favourite) Field Finish Time Jockey Winning(Losing)Margin Winner(2nd Place) Ref2021 – three-year-old season Turf 1800 m (Good) 3-Y-O Maiden Maiden Hanshin 70.1 (8th) 15 15th 1:51.0 Shoji Okada 5.3 Cordial Dirt 1800 m (Good) 3-Y-O Maiden Maiden Niigata 21.6 (9th) 15 9th 1:55.7 Mirai Iwata 2.3 Hishi Kamui Turf 2000 m (Soft) 3-Y-O Maiden Maiden Kokura 19.9 (6th) 12 10th 2:06.5 Kanichiro Fujii 2.4 Shosan Ichimatsu Dirt 1400 m (Good) 3-Y-O Maiden Maiden Nagoya 1.8 (1st) 11 1:28.4 Makoto Okabe –1.5 (Preferred Run) Dirt 1400 m (Yielding) 3-Y-O Condition Condition Nagoya 1.0 (1st) 10 1:29.3 Makoto Okabe –0.9 (Good Spencer)2022 – four-year-old season Dirt 1700 m (Heavy) 4-Y-O+ 1-Win Allowance Kokura 8.8 (5th) 16 7th 1:46.9 Hayato Yoshida 1.0 A la Mode Bio Dirt 2400 m (Good) 4-Y-O+ 1-Win Allowance Kokura 3.1 (1st) 11 2:36.1 Hayato Yoshida –0.9 (Mystery Way) Dirt 2400 m (Good) Inzai Tokubetsu Allowance Nakayama 3.4 (1st) 16 5th 2:35.4 Akira Sugawara 0.6 Fist Bump Dirt 2100 m (Heavy) 4-Y-O+ 2-Win Allowance Tokyo 6.3 (3rd) 14 2:10.6 Takeshi Yokoyama 0.4 Kistler Dirt 2000 m (Good) Takatori Tokubetsu Allowance Hanshin 7.6 (6th) 16 10th 2:08.1 Mirai Iwata 2.4 Kafuji Octagon Dirt 2100 m (Heavy) Shosenkyo Tokubetsu Allowance Tokyo 4.4 (2nd) 16 2:08.4 Kazuo Yokoyama 0.5 Seven Days Dirt 2100 m (Good) Isesaki Tokubetsu Allowance Tokyo 2.9 (1st) 16 2:11.6 Kohei Matsuyama –0.3 (King Saga) Dirt 2100 m (Good) Banshu Stakes Allowance Tokyo 2.5 (1st) 16 2:11.0 Yuga Kawada 0.0 (Danon Luster)2023 – five-year-old season Dirt 1800 m (Good) Tokai Stakes GII Chukyo 43.3 (11th) 15 9th 1:53.0 Kohei Matsuyama 1.8 Promised Warrior Dirt 1800 m (Yielding) Nagoyajo Stakes Open Chukyo 16.2 (7th) 16 4th 1:51.0 Hayato Yoshida 0.8 Le Corsaire Dirt 2100 m (Good) Brilliant Stakes Listed Tokyo 6.9 (4th) 16 2:10.0 Akira Sugawara 0.0 (Danon Luster) Dirt 2100 m (Good) Sleipnir Stakes Open Tokyo 5.9 (3rd) 16 11th 2:10.9 Akira Sugawara 1.6 Danon Luster Dirt 2100 m (Good) Brazil Cup Listed Tokyo 9.0 (4th) 16 4th 2:10.4 Akira Sugawara 0.5 Tenkaharu Dirt 2000 m (Good) Urawa Kinen JpnII Urawa 11.0 (5th) 12 2:06.6 Masashige Honda –0.5 (Mitono O) Dirt 2100 m (Good) Nagoya Grand Prix JpnII Nagoya 2.4 (2nd) 12 Makoto Okabe –0.4 (Grand Bridge)2024 – six-year-old season Dirt 2400 m (Soft) Diolite Kinen JpnII Funabashi 3.1 (3rd) 11 4th 2:35.3 Masashige Honda 1.4 Seraphic Call Dirt 2100 m (Heavy) Kawasaki Kinen JpnI Kawasaki 18.9 (6th) 11 4th 2:15.7 Masashige Honda 0.2 Light Warrior Dirt 2100 m (Good) Nagoya Grand Prix JpnII Nagoya 2.3 (2nd) 12 4th 2:13.8 Makoto Okabe 2.9 Notturno Dirt 2000 m (Yielding) Teio Sho JpnI Oi 46.3 (9th) 13 2:07.4 Kazuo Yokoyama 0.5 King's Sword Dirt 2100 m (Heavy) Hakusan Daishoten JpnIII Kanazawa 2.2 (1st) 12 2:11.1 Kazuo Yokoyama –1.0 (Daishin Pisces) Dirt 2000 m (Yielding) Urawa Kinen JpnII Urawa 1.7 (1st) 11 4th 2:07.6 Kazuo Yokoyama 1.6 Outrange2025 – seven-year-old season Dirt 2400 m (Heavy) Diolite Kinen JpnII Funabashi 7.5 (4th) 13 4th 2:35.8 Hiroto Yoshihara 1.1 Seraphic Call Dirt 2100 m (Yielding) Kawasaki Kinen JpnI Kawasaki 21.6 (6th) 13 2:18.1 Takashi Yano 0.1 Meisho Hario Dirt 2000 m (Good) Teio Sho JpnI Oi 39.7 (7th) 13 4th 2:03.9 Takashi Yano 0.8 Mikki Fight Dirt 1800 m (Good) Korea Cup G3 Seoul 7.1 (3rd) 11 1:50.8 Takashi Yano –0.2 (Chancheng Glory) Dirt 2000 m (Heavy) Tokyo Daishoten GI Oi 77.3 (7th) 15 2:04.3 Takashi Yano 0.0 (Mikki Fight)2026 – eight-year-old season Dirt 2100 m (Yielding) Kawasaki Kinen JpnI Kawasaki 4.0 (2nd) 11 5th 2:16.0 Takashi Yano 1.4 Kazeno Runner Dirt 2000 m (Yielding) Teio Sho JpnI Oi 14.5 (6th) 13 2:03.1 Takashi Yano 0.3 Mikki Fight Dirt 1800 m (Good) Korea Cup G2 Seoul 2.9 (2nd) 9 1:51.7 Takashi Yano –1.1 (Sunday Funday)

Pedigree

Diktaean is inbred 5 × 5 to Northern Dancer (9.38%). His sire King Kamehameha won the 2004 Tōkyō Yūshun and NHK Mile Cup. His dam Medeia won six graded races including the 2013 JBC Ladies Classic.

See also Thoroughbred racing in Japan Tokyo Daishoten Korea Cup (horse racing)

References