Grass Wonder (, foaled 18 February 1995) is an American-bred, Japanese-trained
Thoroughbred
The Thoroughbred is a list of horse breeds, horse breed developed for Thoroughbred racing, horse racing. Although the word ''thoroughbred'' is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thorough ...
racehorse and
sire. In a racing career which lasted from 1997 until 2000 he won nine of his fifteen races including four
Grade I races. He was the leading juvenile colt in Japan in 1997 when he was unbeaten in four races, culminating in a victory in the
Asahi Hai Sansai Stakes. He missed most of his second season with injury problems but returned in autumn to win the
Arima Kinen
The Arima Kinen (有馬記念) is a Conditions races, Grade I Flat racing, flat Horse racing, horse race in Japan open to Thoroughbreds three-years-old and above and the world's largest betting horserace. It is run in late December each year, over ...
. He reached his peak as a four-year-old when he won the
Takarazuka Kinen and a second Arima Kinen. He failed to win in three races in 2000 and was retired to stud. He has had some success as a breeding stallion.
Background
Grass Wonder is a chestnut horse with a white
star
A star is a luminous spheroid of plasma (physics), plasma held together by Self-gravitation, self-gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night sk ...
, standing 15.3½
hands high
bred in
Kentucky
Kentucky (, ), officially the Commonwealth of Kentucky, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Illinois, Indiana, and Ohio to the north, West Virginia to the ...
by Phillips Racing Partnership & John Phillips, of the
Darby Dan Farm. He was sired by Silver Hawk, an American-bred colt who finished third in the
1982 Epsom Derby and later became a successful breeding stallion, siring the
1997 Epsom Derby winner
Benny the Dip, the 1999
St Leger winner
Mutafaweq and the leading American turf performer
Hawkster. Grass Wonder's dam Ameriflora was an unraced daughter of
Danzig. She was a great-granddaughter of Soaring, an American broodmare who was the ancestor of many major winners including
Glorious Song,
Saint Ballado,
Rahy
Rahy (February 18, 1985 – September 22, 2011) was a Thoroughbred horse racing, racehorse who competed in United Kingdom, England and the United States.
Background
Bred by Hill 'n' Dale Farms in Lexington, Kentucky, Lexington, Rahy was a son of ...
and
Singspiel
A Singspiel (; plural: ; ) is a form of German-language music drama, now regarded as a genre of opera. It is characterized by spoken dialogue, which is alternated with ensembles, songs, ballads, and arias which were often strophic, or folk- ...
.
The
yearling was consigned to the
Keeneland
Keeneland Association, Inc. is an equine business based in Lexington, Kentucky. It includes two distinct divisions: the Keeneland Race Course, a Thoroughbred racing facility, and Keeneland Sales, a horse auction complex. It is also known for ...
sale in September 1996 and was bought for $250,000 by Nobuo Tsunoda. Grass Wonder was exported to Japan where he was trained by Mitsuhiro Ogata and was ridden in most of his races by Hitoshi Matoba.
Racing career
1997: two-year-old season
Grass Wonder began his racing by defeating nine opponents in a
maiden race
In horse racing, a maiden race is an event for horses that have not won a race. Horses that have not won a race are referred to as maidens. Maiden horse races are held over a variety of distances and under conditions with eligibility based on the s ...
over 1800 metres at
Nakayama Racecourse on 13 September 1997. A month later he followed up in the Ivy Stakes over 1400 metres at
Tokyo Racecourse, winning from Machikane Sanshiro. In November he was moved up in class for the
Grade II Keisei Hai Sansai Stakes over the same course and distance and won from Machikane Sanshiro and Courir Cyclone.
On his final start of the season, Grass Wonder was one of fifteen colts to contest Japan's most prestigious race for juveniles, the Asahi Hai Sansai Stakes over 1600 metres at Nakayama on 7 December. Ridden by Matoba, he won by two and a half lengths from Meiner Love (later to win the
Sprinters Stakes) who took second ahead of Figaro and
Agnes World.
In January 1998, Grass Wonder was voted
Japanese Champion 2-Year-Old Colt at the
JRA Awards.
1998: three-year-old season
As a foreign-bred horse, Grass Wonder was not eligible to race in many of the major Japanese races for three-year-olds, and when he sustained a leg injury in March 1998 it was decided to reserve him for an autumn campaign. He made his first appearance of the year he finished fifth behind
Silence Suzuka in the Grade II
Mainichi Okan over 1800 metres at Tokyo in October. In the following month he was moved up in distance for the Grade II Copa Republica Argentina over 2500 metres at Tokyo and finished sixth behind
Yusei Top Run.
Despite his lack of form in 1998, Grass Wonder was one of sixteen horses selected to run in the Arima Kinen over 2500 metres at Nakayama on 27 December. His opponents included
Air Groove, Tenno Sho (autumn)),
Machikane Fukukitaru (
Kikuka Sho),
Mejiro Bright (Tenno Sho (spring)),
Mejiro Dober (
Shuka Sho,
Queen Elizabeth II Commemorative Cup),
Offside Trap (
Tenno Sho (autumn)),
Seiun Sky (
Satsuki Sho, Kikuka Sho),
Silk Justice (Defending Champion),
Stay Gold and Yusei Top Run. Grass Wonder won by half a length from Mejiro Bright with a gap of two and a half lengths back to Stay Gold who took third place ahead of Seiun Sky.
1999: four-year-old season

Grass Wonder began his third season in the Grade II Keio Hai Spring Cup over 1400 metres at Tokyo on 15 May. He won by three quarters of a length from Air Jihad, to whom he was conceding four pounds. The unplaced horses included Phalaenopsis (
Oka Sho
The is a Grade 1 flat horse race in Japan. The race is restricted to three-year-old Thoroughbred
The Thoroughbred is a list of horse breeds, horse breed developed for Thoroughbred racing, horse racing. Although the word ''thoroughbre ...
,
Shuka Sho) and the
Godolphin challenger
Lend A Hand (
Gran Criterium). On June 13 over 1600 metres Grass Wonder faced Air Jihad at level weights in the
Yasuda Kinen
The Yasuda Kinen (English: Yasuda Memorial, Japanese and Chinese language: 安田記念) is a Japanese Graded stakes race, International Grade I Thoroughbred horse race held at the Tokyo Racecourse in Tokyo. Raced annually each June, the Yasuda Ki ...
. He was beaten a nose by his rival with the pair finishing two and a half lengths clear of
Seeking The Pearl (
Prix Maurice de Gheest
The Prix Maurice de Gheest is a Group 1 flat horse race in France open to thoroughbreds aged three years or older. It is run at Deauville over a distance of 1,300 metres (about 6½ furlongs), and it is s ...
) in third place. Grass Wonder returned to middle distances for the Takarazuka Kinen over 2200 metres at
Hanshin Racecourse on 11 July and was matched for the first time against
Special Week, a colt who had won the
Tokyo Yushun in 1998 and the spring edition of the
Tenno Sho. The other runners included Matikanefukukitaru and Stay Gold. Grass Wonder defeated Special Week with a gap of seven lengths back to Stay Gold in third.
After a break of almost three months, Grass Wonder returned for the Grade II Mainichi Okan over 1800 metres at Tokyo on 10 October and won from Meisho Odo and Embrasser Moi.
On 26 December at Nakayama, Grass Wonder attempted to become the fourth horse following
Speed Symboli,
Symboli Rudolf and
Oguri Cap to win back-to-back runnings of the Arima Kinen. His main opponents in the fourteen runner field included Mejiro Bright,
Narita Top Road, Phalaenopsis, Special Week, Stay Gold, Symboli Indy (
NHK Mile Cup) and
T M Opera O (
Satsuki Sho). The race produced a dramatic finish with the lead changing hand several times in the last 200 metres, but Grass Wonder prevailed by a nose and a neck from Special Week and T M Opera O with Tsurumaru Tsuyoshi half a length away in fourth.
For his efforts over the course of the season, Grass Wonder was given a special award at the
JRA Awards for 1999.
2000: five-year-old season
Grass Wonder remained in training as a five-year-old colt but failed to reproduce his best form. He finished sixth behind Leo Ryuho in the Grade II Nikkei Sho over 2500 metres at Nakayama on 26 March and then ran unplaced behind the filly Stinger in the Keio Hai Spring Cup. In his final race the horse ran for the second time in the Takarazuka Kinen and finished sixth of the eleven runners behind T M Opera O.
Stud record

Grass Wonder was retired from racing to stand at the
Shadai Stallion Station
is a thoroughbred breeding facility located in Abira on the island of Hokkaido in Japan. The farm was begun in the late 1970s to early 1980s by the late Zenya Yoshida, and is now run jointly by his sons (Katsumi, Haruya, and Teruya Yoshida), know ...
in Hokkaido. He later moved to the Breeders' Stallion Station where he was based in 2015.
The best of his offspring have included:
* Sakura Mega Wonder (2003), won seven races including the Kinko Sho
*
Screen Hero (2004), won five races including the
Japan Cup
The is one of the most prestigious horse races in Japan. It is contested on the last Sunday of November, post time of 15:40 at Tokyo Racecourse in Fuchu, Tokyo at a distance of 2400 meters (about miles) run under weight for age conditions with ...
* Earnestly (foaled 2005), won 10 races including the
Takarazuka Kinen
* Seiun Wonder (2006), won 4 races including the
Asahi Hai Futurity Stakes
Pedigree
References
{{Reflist, 2
1995 racehorse births
Racehorses bred in Kentucky
Racehorses trained in Japan
Thoroughbred family 12-c
Arima Kinen winners
Takarazuka Kinen winners