# Agnes Tachyon

Agnes Tachyon (Japanese : アグネスタキオン, April 13, 1998 - June 22, 2009) was an undefeated Japanese Thoroughbred racehorse and a Leading sire in Japan.
He was by Sunday Silence and his dam Agnes Flora (by Royal Ski) and was therefore a full-brother to Agnes Flight. Agnes Flora won the Oka Sho (Japanese 1000 Guineas) and his granddam Agnes Lady won the Yushun Himba (Japanese Oaks). He was a full-brother to Agnes Flight.
Agnes Flora also produced the Tokyo Yushun (Japanese Derby) winner Agnes Flight.

## Racing record

Agnes Tachyon was undefeated in his four race starts, including Satsuki Sho (Japanese 2000 Guineas), before a bowed tendon ended his racing career. He later became a successful sire in Japan.

### Major race wins

* 2001 Satsuki Sho (Japanese 2000 Guineas) (Domestic GI)
* 2001 Yayoi Sho (Domestic GII)
* 2000 Radio Tampa Hai Sansai Stakes (Domestic GIII)

## Stud record

Agnes Tachyon's descendants include:
c = colt, f = filly
| Foaled | Name | Sex | Major Wins |
| 2003 | Lanzarote | c | Procyon Stakes |
| 2003 | Shonan Tachyon | c | Niigata Nisai Stakes |
| 2003 | Logic | f | NHK Mile Cup |
| 2004 | Daiwa Scarlet | f | Arima Kinen, Shūka Sho, Queen Elizabeth II Cup, Osaka Hai |
| 2004 | Admire Aura | f | Yayoi Sho, Kyōto Kinen, Shinzan Kinen, |
| 2004 | Shonan Talent | f | Flower Cup |
| 2004 | Meine Canna | f | Fukushima Himba Stakes |
| 2005 | Deep Sky | c | Tokyo Yūshun, NHK Mile Cup |
| 2005 | Admire Commando | c | Aoba Sho |
| 2005 | Rainbow Pegasus | c | Kisaragi Sho, Sekiya Kinen |
| 2005 | Daiwa Wild Boar | c | St Lite Kinen |
| 2005 | Little Amapola | c | Queen Elizabeth II Cup, Daily Hai Queen Cup, Aichi Cup |
| 2005 | Captain Thule | c | Satsuki Shō, Daily Hai Nisai Stakes, Asahi Challenge Cup |
| 2005 | Reve d'Essor | f | Daily Hai Nisai Stakes, Hanshin Juvenile Fillies, Tulip Sho |
| 2005 | Copano Jingu | f | Meguro Kinen |
| 2006 | Broad Street | f | Rose Stakes |
| 2006 | I Am Kamino Mago | c | Hanshin Himba Stakes |
| 2006 | Nike High Grade | c | Haneda Hai |
| 2007 | Sunrise Prince | c | New Zealand Trophy |
| 2007 | Quark Star | c | St Lite Kinen |
| 2007 | Ridill | c | Swan Stakes, Daily Hai Nisai Stakes |
| 2008 | Red Davis | c | Shinzan Kinen, Mainichi Hai, Naruo Kinen |
| 2008 | I Am Actress | f | Unicorn Stakes |
| 2009 | Grandezza | c | Spring Stakes, Tanabata Sho, Sapporo Nisai Stakes |
| 2009 | Sound of Heart | c | Hanshin Himba Stakes |
| 2009 | Omega Heartland | c | Flower Cup |
| 2009 | Osumi Ichiban | c | Diolite Kinen, Hyogo Championship |
| 2009 | Northern River | c | Saitama Hai, Arlington Cup, Capella Stakes |
| 2009 | Red Claudia | f | Queen Sho |
| 2010 | Red Arion | c | Yomiuri Milers Cup, Sekiya Kinen |
| 2010 | Jebel Musa | c | Elm Stakes |
Agnes Tachyon was the Leading sire in Japan in 2008 and died in June 2009, due to heart failure.

## Pedigree

Pedigree of Agnes Tachyon (JPN), chestnut stallion, 1998 :
| Sire Sunday Silence (USA) 1986 | Halo (USA) 1969 | Hail to Reason 1958 | Turn-to |
| Sire Sunday Silence (USA) 1986 | Halo (USA) 1969 | Hail to Reason 1958 | Nothirdchance |
| Sire Sunday Silence (USA) 1986 | Halo (USA) 1969 | Cosmah 1953 | Cosmic Bomb |
| Sire Sunday Silence (USA) 1986 | Halo (USA) 1969 | Cosmah 1953 | Almahmoud |
| Sire Sunday Silence (USA) 1986 | Wishing Well 1975 | Understanding 1963 | Promised Land |
| Sire Sunday Silence (USA) 1986 | Wishing Well 1975 | Understanding 1963 | Pretty Ways |
| Sire Sunday Silence (USA) 1986 | Wishing Well 1975 | Mountain Flower 1964 | Montparnasse |
| Sire Sunday Silence (USA) 1986 | Wishing Well 1975 | Mountain Flower 1964 | Edelweiss |
| Dam Agnes Flora (JPN) 1987 | Royal Ski 1974 | Raja Baba | Bold Ruler |
| Dam Agnes Flora (JPN) 1987 | Royal Ski 1974 | Raja Baba | Missy Baba |
| Dam Agnes Flora (JPN) 1987 | Royal Ski 1974 | Coz o'Nijinsky 1969 | Involvement |
| Dam Agnes Flora (JPN) 1987 | Royal Ski 1974 | Coz o'Nijinsky 1969 | Gleam |
| Dam Agnes Flora (JPN) 1987 | Agnes Lady (JPN) 1976 | Remand 1965 | Alcide |
| Dam Agnes Flora (JPN) 1987 | Agnes Lady (JPN) 1976 | Remand 1965 | Admonish |
| Dam Agnes Flora (JPN) 1987 | Agnes Lady (JPN) 1976 | Ikoma Eikan (JPN) | Sallymount |
| Dam Agnes Flora (JPN) 1987 | Agnes Lady (JPN) 1976 | Ikoma Eikan (JPN) | Heatherlands (GB) (Family: 1-l) |

## In popular culture

An anthropomorphized version of the horse appears in Uma Musume Pretty Derby, with a movie featuring the character titled Uma Musume Pretty Derby: Shinjidai no Tobira released in Japan on May 24, 2024.