Haiseiko

Haiseiko
ハイセイコー
Haiseiko at the 1973 Satsuki Sho.
BreedThoroughbred
SireChina Rock
GrandsireRockefella
DamHaiyu
DamsireKarim
SexStallion
Foaled1970
CountryJapan
ColourBay
BreederTakeda Bokujo
OwnerOyu
Horseman Club
Racing colours
TrainerMasami Ito
Katsutaro Suzuki
JockeySueo Masuzawa
Record22: 13-4-2
Earnings219,539,600 Yen
Major wins
Seiun Sho (1972)
Yayoi Sho (1973)
Spring Stakes (1973)
NHK Hai (1973)
Nakayama Kinen (1974)
Takarazuka Kinen (1974)
Takamatsunomiya Hai (1974)
Japanese Classic Race wins:
Satsuki Sho (1973)
Awards
Yushun Public Prize (1973)
Honours
Japan Racing Association Hall of Fame (1984)
Statue at Nakayama Racecourse, Oi Racecourse & Niikappu, Hokkaido
Haiseiko Kinen at Oi Racecourse

Haiseiko (Japanese: ハイセイコー, Hepburn: Haiseikō; March 6, 1970 – May 4, 2000) was a Japanese Thoroughbred racehorse and sire. He rose to national fame during the 1970s, becoming a beloved idol horse whose popularity was described as a social phenomenon. After his rise to popularity, he was famously nicknamed "The Monster of Local Racing." He played a leading role in sparking Japan's first major horse racing boom. In 1984, he was honored with induction into the Japan Racing Association Hall of Fame.

Background

Haiseiko was born in 1970 (Showa 45) at Takeda Farm in Niikappu, Hokkaido, under the jurisdiction of Hidaka Subprefecture. He had a large body, and his legs and hooves were impressively strong. This prompted farm staff to celebrate his birth with red rice, a traditional Japanese way to mark joyful occasions.

According to Takao Takeda, manager of the farm, Haiseiko stood out from birth due to his size and presence. When running in groups, at the front. Takeda believed from an early age that Haiseiko could compete at the highest level in central racing and began telling others about his talent for running. The horse quickly gained recognition as the most promising prospect from Niikappu, seen as the finest horse from Takeda Farm since Kitano O [ja], winner of the 1957 Tenno Sho (Spring).

Despite offers from central racing trainers to debut directly, Haiseiko came under the ownership of Oyu Co., Ltd. This company was headed by Yasushi Aono, the owner of his dam, Haiyu. This led to his management falling under Masami Ito, a trainer at Oi Racecourse who had previously trained Haiyu.

Haiseiko joined the stable in September 1971, where he began basic handling and training. Saburo Takahashi, a jockey involved in his early training, said that even at this young stage, Haiseiko's build and dignified presence made him seem like a grown adult among children. Media outlets were already eager to cover his development, and more offers from central racing trainers began pouring in.

Racing career

In July 1972, at age two, Haiseiko began racing at the Oi Racecourse for the Japanese National Association of Racing. He was undefeated in six starts at Oi Racecourse.

In 1973, at age three, Haiseiko was traded to the Japan Racing Association. He won the Satsuki Sho, the first of the Japanese Classic Races, ⁣⁣but then finished third to Take Hope [ja] in the Tokyo Yushun and second to the same horse in the Kikuka Sho.

At age four, Haiseiko won the Takarazuka Kinen. In April, his fame extended far beyond the racing world. Media coverage grew exponentially, even appearing in non-sports outlets, captivating audiences who previously had little interest in horse racing.

Although his undefeated streak ended on May 27 with a loss in the Tokyo Yushun (Japanese Derby), his popularity only increased. Haiseiko became a central figure in Japan's first major horse racing boom. This boom, alongside the second wave in the 1990s, sparked by jockey Yutaka Take and the horse Oguri Cap, is considered one of the two biggest in Japanese racing history. Haiseiko helped transform public perception of horse racing in Japan, shifting it from a gambling activity to a wholesome leisure pursuit. In 1984, he was officially recognized as a "Hall of Fame Horse" for his contribution to racing's popularization.

Racing form

Haiseiko won 13 races and struck podiums six more times out of 22 starts. This data is available from JBIS and netkeiba.

Date Track Race Distance
(Condition)
Entry HN Odds
(Favored)
Finish Time Jockey Winner
(Runner-up)
1972 – three-year-old season
Jul 12 Oi 3yo Newcomer 1,000 m (Muddy) 6 3 – (1) 1st R0:59.4 Yutaka Tsujino (Gypsy Dancer)
Jul 26 Oi Under ¥530,000 1,000 m (Fast) 8 5 – (1) 1st 1:00.5 Fumio Fukunaga (Sette Verona)
Sep 20 Oi Akikaze Tokubetsu 1,200 m (Fast) 7 4 – (1) 1st 1:12.4 Fumio Fukunaga (Tosa End)
Oct 9 Oi Gold Junior 1,400 m (Fast) 5 1 – (1) 1st R1:24.9 Fumio Fukunaga (Gold Eagle)
Nov 11 Oi Shiragiku Tokubetsu 1,400 m (Muddy) 8 5 – (1) 1st 1:25.8 Saburo Takahashi (Kaya Eikou)
Nov 27 Oi Seiun Sho 1,600 m (Sloppy) 10 10 – (1) 1st 1:39.2 Saburo Takahashi (Golden Tateyama)
1973 – four-year-old season
Mar 4 Nakayama Yayoi Sho 1,800 m (Firm) 10 6 1.5 (1) 1st 1:50.9 Sueo Masuzawa (New Sant)
Mar 25 Nakayama Spring Stakes 1,800 m (Firm) 10 3 1.7 (1) 1st 1:51.0 Sueo Masuzawa (Kuri Onward)
Apr 15 Nakayama Satsuki Sho 2,000 m (Soft) 16 7 2.7 (1) 1st 2:06.7 Sueo Masuzawa (Kane Ikoma)
May 6 Tokyo NHK Hai 2,000 m (Firm) 14 7 1.2 (1) 1st 2:02.3 Sueo Masuzawa (Kane Ikoma)
May 27 Tokyo Tokyo Yushun 2,400 m (Firm) 28 5 1.5 (1) 3rd 2:28.7 Sueo Masuzawa Take Hope
Oct 21 Kyoto Kyoto Shimbun Hai 2,000 m (Heavy) 13 3 2.1 (1) 2nd 2:08.4 Sueo Masuzawa Toyo Chikara
Nov 11 Kyoto Kikuka Sho 3,000 m (Good) 15 4 4.2 (1) 2nd 3:14.2 Sueo Masuzawa Take Hope
Dec 16 Nakayama Arima Kinen 2,500 m (Firm) 11 6 3.7 (1) 3rd 2:36.6 Sueo Masuzawa Strong Eight
1974 – five-year-old season
Jan 20 Tokyo American Jockey Club Cup 2,400 m (Firm) 10 3 3.1 (1) 9th 1:50.9 Sueo Masuzawa Take Hope
Mar 10 Nakayama Nakayama Kinen 1,800 m (Heavy) 9 7 2.8 (1) 1st 1:52.1 Sueo Masuzawa (Toyo Asahi)
May 5 Kyoto Tenno Sho (Spring) 3,200 m (Firm) 16 6 2.1 (1) 6th 3:23.6 Sueo Masuzawa Take Hope
Jun 2 Kyoto Takarazuka Kinen 2,200 m (Firm) 11 10 3.5 (1) 1st R2:12.9 Sueo Masuzawa (Kuri Onward)
Jun 23 Chukyo Takamatsunomiya Hai 2,000 m (Firm) 10 5 1.6 (1) 1st 2:00.4 Sueo Masuzawa (IT Etan)
Oct 13 Kyoto Kyoto Daishoten 2,400 m (Firm) 11 6 4.5 (3) 4th 2:30.3 Sueo Masuzawa Tanino Chikara
Nov 9 Tokyo 4yo+ Open 1,800 m (Firm) 8 5 2.0 (1) 2nd 1:50.0 Sueo Masuzawa Yamabuki O
Dec 15 Nakayama Arima Kinen 2,500 m (Good) 9 1 5.1 (3) 2nd 2:36.7 Sueo Masuzawa Tanino Chikara

Legend:
  Turf   Dirt

Stud record

The data below is based on JBIS Stallion Reports.

Notable progeny

c = colt, f = filly
bold = grade 1 stakes or equivalent

Year Progeny Gender Major wins
1976 Katsurano Haiseiko c Tokyo Yushun, Tenno Sho (Spring), Yomiuri Milers Cup, Meguro Kinen
1977 Tatsuyu Chikara c Chunichi Shimbun Hai
1982 Life Tateyama c Shinzan Kinen, Winter Stakes, Sapporo Kinen
1983 Maruka Seiko c Keihan Hai
1984 Yamanin Arden c Kyoto Sansai Stakes, Shinzan Kinen
1986 Sand Peeress f Queen Elizabeth II Cup
1987 Haku Taisei c Kisaragi Sho, Satsuki Sho

Retirement

Tomb of Haiseiko, located at Niikappu, Hokkaido.

Even after retiring as a racehorse and becoming a stallion, Haiseiko's popularity never waned. Fans flocked to Meiwa Farm, where he stood at stud, with tour buses regularly arriving. He was consistently bringing racing enthusiasts closer to Japan's horse breeding regions. Among his offspring was Katsurano Haiseiko [ja], who triumphed in the Japanese Derby, the race Haiseiko himself couldn't win. In total, he sired 3 winners of Japan's premier GI races and 19 graded stakes winners. He retired from stud duty in 1997 and spent his final years at Meiwa Farm in Hokkaido, dying from heart failure on May 4, 2000.

Honors

Haiseiko was inducted into the Japan Racing Association Hall of Fame in 1984.

The last NAR race Haiseiko ran and won, the Seiun Sho, was renamed the Haiseiko Kinen [ja] in honor of the horse in 2001 after he died. Three statues of Haiseiko have been erected as well, with one each at Oi Racecourse, Nakayama Racecourse, and at Thoroughbred Road Niikappu Roadside Station.

An anthropomorphized version of the horse appears as a character in Uma Musume Pretty Derby, voiced by Sakura Tange.

Pedigree

Pedigree of Haiseiko
Sire
China Rock
Rockefella Hyperion Gainsborough
Selene
Rockfel Falstead
Rockliffe
May Wong Rustom Pasha Son-In-Law
Cos
Wezzan Friar Marcus
Woodsprite
Dam
Haiyu
Karim Nearco Pharos
Nogara
Skylarking Mirza
Jennie
Dalmogan Beau Son Beau Pere
Banita
Reticent Hua
Timid

See also

References

  1. ↑ "JRAホームページ|トピックス&コラム|競馬コラム|競馬クロニクル". www.jra.go.jp. Archived from the original on 2010-02-24. Retrieved 2025-07-29.
  2. 1 2 3 Tomomi, Nakagawa. "大井が生んだ怪物 ハイセイコー ~ハイセイコー記念~ | 名馬ストーリー | データ&コラム". 東京シティ競馬 : TOKYO CITY KEIBA (in Japanese). Retrieved 2023-02-17.
  3. ↑ 年度別累計成績/主な成績 | 競走成績 | ハイセイコー [Cumulative Results by Financial Year / Key Results | Racing Results | Haiseiko]. www.jbis.or.jp (in Japanese). Retrieved 18 October 2026.
  4. ↑ ハイセイコー (Haiseiko)の競走成績 [Haiseiko’s racing record]. netkeiba (in Japanese). Retrieved 18 October 2026.
  5. ↑ 種牡馬成績 | 種牡馬情報 | スピードシンボリ [Sire Record | Sire Information | Haiseiko]. www.jbis.or.jp (in Japanese). Retrieved 16 October 2026.
  6. ↑ "大井競馬場|競馬場ガイド|地方競馬情報サイト". www.keiba.go.jp. Retrieved 2023-02-17.
  7. ↑ "主な施設:中山競馬場 JRA". www.jra.go.jp (in Japanese). Japan Racing Association. Retrieved 2023-02-17.
  8. ↑ "ハイセイコー号記念像 | 北海道ひだか観光ナビ". hokkaido-hidaka-kankonavi.com. Retrieved 2023-02-17.
  9. ↑ "「ウマ娘」4周年で新CM&育成シナリオスタート!レジェンドウマ娘「ハイセイコー」ら登場". Nikkan Sports (in Japanese). 2025-02-24. Retrieved 2025-03-08.
  10. ↑ "ハイセイコー|ウマ娘 プリティーダービー 公式ポータルサイト|Cygames". ウマ娘 プリティーダービー 公式ポータルサイト (in Japanese). Retrieved 2025-12-01.