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Maruzensky

Maruzensky was a Japanese Thoroughbred racehorse and stallion, foaled in 1974 and unbeaten in eight career starts.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Maruzensky was a Japanese Thoroughbred racehorse and stallion, foaled on 19 May 1974. He was undefeated in eight career starts and earned the nickname "Supercar" for his exceptional speed. After his racing career, he became a notable sire and broodmare sire in Japanese horse racing.

Racing career

Maruzensky was undefeated in eight races, with his performances establishing him as one of the notable Japanese racehorses of his era. He was barred from some classic races because foreign-bred horses were not eligible at the time.

Breeding career

After racing, Maruzensky became a successful sire and broodmare sire. His bloodline appears in the pedigrees of several prominent Japanese racehorses, including Derby winners and Grade I winners.

Death and legacy

Maruzensky died of a heart attack in August 1997. He remains remembered in Japanese racing history for both his perfect record and his influence on later generations.

Key facts

  • Maruzensky raced in Japan and won all eight of his starts.
  • He earned the nickname "Supercar" after a dominant win in the Asahi Hai Sansai Stakes.
  • He was foaled on 19 May 1974 and died on 21 August 1997.
  • His pedigree included Nijinsky as sire and Northern Dancer as grandsire.
  • He was later influential as a sire and broodmare sire, with descendants including multiple major winners.

Frequently asked questions

What was Maruzensky?
Maruzensky was a Japanese Thoroughbred racehorse and stallion best known for going undefeated in eight starts.
Why was Maruzensky called "Supercar"?
He earned the nickname after a very large-margin victory in the Asahi Hai Sansai Stakes, which highlighted his exceptional speed.
Did Maruzensky ever lose a race?
No. His official race record was 8 starts and 8 wins.
When was Maruzensky born and when did he die?
He was foaled on 19 May 1974 and died on 21 August 1997.
Was Maruzensky important as a breeding horse?
Yes. He became influential as a sire and broodmare sire, appearing in the pedigrees of several major Japanese racehorses.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Maruzensky
    Supports: Basic biographical and racing facts, including dates, pedigree, race record, nickname, and death.
  2. Wikipedia (French) — https://fr.wikipedia.org/wiki/Maruzensky
    Supports: Additional confirmation of racehorse identity, unbeaten record, Hall of Fame status, and death.
  3. Wikipedia (Spanish) — https://es.wikipedia.org/wiki/Maruzensky
    Supports: Confirmation of undefeated Japanese Thoroughbred status and nickname.