Agnes Tachyon


Agnes Tachyon was a Japanese Thoroughbred racehorse and a Leading sire in Japan. His major wins include the Satsuki Sho, and the Yayoi Sho. He ran undefeated from 2000 until 2001 when a bowed tendon ended his racing career.

Background

He was sired by Sunday Silence and his dam Agnes Flora and was therefore a full-brother to Tokyo Yushun winner Agnes Flight. Agnes Flora won the Oka Sho and his granddam Agnes Lady won the Yushun Himba.
The name "Tachyon" is derived from tachyonic particles, hypothetical particles which travel faster than the speed of light.
In 1992, the first year of mother Agnes Flora's breeding career, she mated with Sunday Silence, a stallion in his second season who had not yet sired any runners at Shadai. In the following year, 1993, her first foal, a colt, was born. As successful horses from Sunday Silence begin to emerge, this first foal was named 'Agnes Takao' using Watanabe Takao's name. Agnes Takao was entrusted to trainer Mitsumasa Hamada, but he could not perform as expected due to inherited leg weaknesses from his mother. The second and third foals by sire Tony Bin were entrusted to Nagahama but also fail to perform similarly. Then, in 1996, in the fifth year, Sunday Silence was once again chosen as the mating partner. On March 2, 1997, a chestnut colt, later known as Agnes Flight, was born at Shadai Farm. In the same year that the fourth foal was born, she again mated with Sunday Silence, resulting in the fifth foal, a chestnut colt, born in 1998. This fifth foal was later known as Agnes Tachyon.

Racing career

Agnes Tachyon was undefeated in his four race starts, including Satsuki Sho, before a bowed tendon ended his racing career. He later became a successful sire in Japan.
; Major race wins

Stud record

Agnes Tachyon's descendants include:
Legend:c: coltf: fillybold: grade 1 stakes
FoaledNameSexMajor wins
2003LanzarotecProcyon Stakes
2003Shonan TachyoncNiigata Nisai Stakes
2003LogicfNHK Mile Cup
2004Daiwa ScarletfOka Sho, Shūka Sho, Queen Elizabeth II Cup, Osaka Hai, Arima Kinen
2004Admire AurafYayoi Sho, Kyōto Kinen, Shinzan Kinen,
2004Shonan TalentfFlower Cup
2004Meine CannafFukushima Himba Stakes
2005Deep SkycTokyo Yūshun, NHK Mile Cup
2005Admire CommandocAoba Sho
2005Rainbow PegasuscKisaragi Sho, Sekiya Kinen
2005Daiwa Wild BoarcSt Lite Kinen
2005Little AmapolacQueen Elizabeth II Cup, Daily Hai Queen Cup, Aichi Cup
2005Captain ThulecSatsuki Shō, Daily Hai Nisai Stakes, Asahi Challenge Cup
2005Copano JingufMeguro Kinen
2006Broad StreetfRose Stakes
2006I Am Kamino MagocHanshin Himba Stakes
2006Nike High GradecHaneda Hai
2007Sunrise PrincecNew Zealand Trophy
2007Quark StarcSt Lite Kinen
2007RidillcSwan Stakes, Daily Hai Nisai Stakes
2008Red DaviscShinzan Kinen, Mainichi Hai, Naruo Kinen
2008Reve d'EssorfDaily Hai Nisai Stakes, Hanshin Juvenile Fillies, Tulip Sho
2008I Am ActressfUnicorn Stakes
2009Grandezzac Spring Stakes, Tanabata Sho, Sapporo Nisai Stakes
2009Sound of HeartcHanshin Himba Stakes
2009Omega HeartlandcFlower Cup
2009Osumi IchibancDiolite Kinen, Hyogo Championship
2009Northern RivercSaitama Hai, Arlington Cup, Capella Stakes
2009Red ClaudiafQueen Sho
2010Red ArioncYomiuri Milers Cup, Sekiya Kinen
2010Jebel MusacElm Stakes

Agnes Tachyon was the leading sire in Japan in 2008 and died in June 2009 due to heart failure.

In popular culture

An anthropomorphized version of the horse appears in Umamusume: Pretty Derby as an intellectual young girl with short, messy brown hair, voiced by Sumire Uesaka. A movie featuring the character titled Umamusume: Pretty Derby – Beginning of a New Era released in Japan on May 24, 2024.