| Horse Name | Grass Wonder |
| Foaled | February 18, 1995 |
| Breeding Area | Kentucky, USA |
| Breeder | Phillips Racing Partnership & John Phillips |
| Sex | Horse |
| Coat Color | Chestnut |
| Trainer | Mitsuhiro Ogata (Miho, Japan) |
| Owner | Hanzawa Co. Ltd. |
| Record | 15 starts 9 wins |
| Earnings | ¥691,646,000 |
| Racing Colors |  |
| Silver Hawk 1979 b. | Roberto 1969 b. | Hail to Reason | Turn-to |
| Nothirdchance | |||
| Bramalea | Nashua | ||
| Rarelea | |||
| Gris Vitesse 1966 gr. | Amerigo | Nearco | |
| Sanlinea | |||
| Matchiche | Mat de Cocagne | ||
| Chimere Fabuleux | |||
| Ameriflora 1989 b. | Danzig 1977 dkb/br. | Northern Dancer | Nearctic |
| Natalma | |||
| Pas de Nom | Admiral's Voyage | ||
| Petitioner | |||
| Graceful Touch 1978 b. | His Majesty | Ribot | |
| Flower Bowl | |||
| Pi Phi Gal | Raise a Native | ||
| Soaring |
Past Performances
| Date | Race Course | Race | Race Class | Field | PP | Win Fav. | Pla. | Jockey | wgt. | Dist. | Track Cond. | Finish (1/10s) | Margin (1/10s) | 1st (2nd) Horse |
| 25 Jun 2000 | Hanshin | Takarazuka Kinen | Jpn1 | 11 | 11 | 2 | 6th | M.Ebina | 58kg | T2200m | Firm | 2:14.7 | 0.9 | T. M. Opera O |
| 14 May 2000 | Tokyo | Keio Hai Spring Cup | Jpn2 | 18 | 8 | 1 | 9th | H.Matoba | 59kg | T1400m | Firm | 1:21.6 | 0.6 | Stinger |
| 26 Mar 2000 | Nakayama | Nikkei Sho | Jpn2 | 10 | 7 | 1 | 6th | H.Matoba | 59kg | T2500m | Firm | 2:36.3 | 0.9 | Leo Ryuho |
| 26 Dec 1999 | Nakayama | Arima Kinen | Jpn1 | 14 | 7 | 1 | 1st | H.Matoba | 57kg | T2500m | Firm | 2:37.2 | 0.0 | (Special Week) |
| 10 Oct 1999 | Tokyo | Mainichi Okan | Jpn2 | 10 | 8 | 1 | 1st | H.Matoba | 59kg | T1800m | Firm | 1:45.8 | 0.0 | (Meisho Odo) |
| 11 Jul 1999 | Hanshin | Takarazuka Kinen | Jpn1 | 12 | 5 | 2 | 1st | H.Matoba | 58kg | T2200m | Firm | 2:12.1 | 0.5 | (Special Week) |
| 13 Jun 1999 | Tokyo | Yasuda Kinen | Jpn1 | 14 | 7 | 1 | 2nd | H.Matoba | 58kg | T1600m | Firm | 1:33.3 | 0.0 | Air Jihad |
| 15 May 1999 | Tokyo | Keio Hai Spring Cup | Jpn2 | 18 | 5 | 1 | 1st | H.Matoba | 58kg | T1400m | Firm | 1:20.5 | 0.1 | (Air Jihad) |
| 27 Dec 1998 | Nakayama | Arima Kinen | Jpn1 | 16 | 2 | 4 | 1st | H.Matoba | 55kg | T2500m | Firm | 2:32.1 | 0.1 | (Mejiro Bright) |
| 07 Nov 1998 | Tokyo | Copa Republica Argentina | Jpn2 | 18 | 13 | 1 | 6th | H.Matoba | 57kg | T2500m | Firm | 2:33.5 | 0.6 | Yusei Top Run |
| 11 Oct 1998 | Tokyo | Mainichi Okan | Jpn2 | 9 | 6 | 2 | 5th | H.Matoba | 55kg | T1800m | Firm | 1.:46.4 | 1.5 | Silence Suzuka |
| 07 Dec 1997 | Nakayama | Asahi Hai Sansai S. | Jpn1 | 15 | 11 | 1 | 1st | H.Matoba | 54kg | T1600m | Firm | R1:33.6 | 0.4 | (Meiner Love) |
| 08 Nov 1997 | Tokyo | Keisei Hai Sansai S. | Jpn2 | 9 | 2 | 1 | 1st | H.Matoba | 54kg | T1400m | Firm | 1:21.9 | 1.0 | (Machikane Sanshiro) |
| 12 Oct 1997 | Tokyo | Ivy S. | R | 9 | 8 | 1 | 1st | H.Matoba | 53kg | T1400m | Firm | 1:21.9 | 0.8 | (Machikane Sanshiro) |
| 13 Sep 1997 | Nakayama | Two Year Olds | - | 10 | 9 | 1 | 1st | H.Matoba | 53kg | T1800m | Firm | 1:52.4 | 0.5 | (Bildschon) |
Progeny
| Horse Name | Major Wins |
| Screen Hero | Japan Cup |
| Earnestly | Takarazuka Kinen |
| Seiun Wonder | Asahi Hai Futurity S. |
| Maruka Rascal | Nakayama Daishogai, Nakayama Grand Jump |
| Big Romance | Zen-Nihon Nisai Yushun |