| Horse Name | Seiun Sky |
| Foaled | April 26, 1995 |
| Breeding Area | Hokkaido, Japan |
| Breeder | Nishiyama Bokujo |
| Sex | Horse |
| Coat Color | Gray |
| Trainer | Kazutaka Yasuda (Miho, Japan) |
| Owner | Masayuki Nishiyama Nishiyama Bokujo |
| Record | 13 starts 7 wins |
| Earnings | ¥610,282,000 |
| Racing Colors |   |
| Sheriff's Star 1985 gr. | Posse 1977 ch. | Forli | Aristophanes |
| Trevisa | |||
| In Hot Pursuit | Bold Ruler | ||
| Lady Be Good | |||
| Castle Moon 1975 gr. | Kalamoun | Zedaan | |
| Khairunissa | |||
| Fotheringay | Right Royal | ||
| La Fresnes | |||
| Sister Mill 1990 ch. | Mill George 1975 b. | Mill Reef | Never Bend |
| Milan Mill | |||
| Miss Charisma | Ragusa | ||
| Matatina | |||
| Sweet Anjurer 1985 b. | Mogami | Lyphard | |
| No Luck | |||
| Angelet Sweet | Colonel Symboli | ||
| Sweet France |
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 |
| 29 Apr 2001 | Kyoto | Tenno Sho (Spring) | Jpn1 | 12 | 6 | 6 | 12th | N.Yokoyama | 58kg | T3200m | Firm | 3:32.0 | 15.8 | T. M. Opera O |
| 31 Oct 1999 | Tokyo | Tenno Sho (Autumn) | Jpn1 | 17 | 7 | 1 | 5th | N.Yokoyama | 58kg | T2000m | Firm | 1:58.3 | 0.3 | Special Week |
| 22 Aug 1999 | Sapporo | Sapporo Kinen | Jpn2 | 10 | 3 | 1 | 1st | N.Yokoyama | 59kg | T2000m | Firm | 2:00.1 | 0.1 | (Phalaenopsis) |
| 02 May 1999 | Kyoto | Tenno Sho (Spring) | Jpn1 | 12 | 8 | 2 | 3rd | N.Yokoyama | 58kg | T3200m | Firm | 3:15.8 | 0.5 | Special Week |
| 28 Mar 1999 | Nakayama | Nikkei Sho | Jpn2 | 13 | 7 | 1 | 1st | N.Yokoyama | 58kg | T2500m | Good | 2:35.3 | 0.9 | (Seiun Area) |
| 27 Dec 1998 | Nakayama | Arima Kinen | Jpn1 | 16 | 11 | 1 | 4th | N.Yokoyama | 55kg | T2500m | Firm | 2:32.7 | 0.6 | Grass Wonder |
| 08 Nov 1998 | Kyoto | Kikuka Sho (Japanese St. Leger) | Jpn1 | 17 | 4 | 2 | 1st | N.Yokoyama | 57kg | T3000m | Firm | R3:03.2 | 0.6 | (Special Week) |
| 11 Oct 1998 | Kyoto | Kyoto Daishoten | Jpn2 | 7 | 1 | 4 | 1st | N.Yokoyama | 57kg | T2400m | Firm | 2:25.6 | 0.1 | (Mejiro Bright) |
| 07 Jun 1998 | Tokyo | Tokyo Yushun (Japanese Derby) | Jpn1 | 18 | 12 | 3 | 4th | N.Yokoyama | 57kg | T2400m | Firm | 2:26.8 | 1.0 | Special Week |
| 19 Apr 1998 | Nakayama | Satsuki Sho (Japanese 2000 Guineas) | Jpn1 | 18 | 3 | 2 | 1st | N.Yokoyama | 57kg | T2000m | Firm | 2:01.3 | 0.1 | (King Halo) |
| 08 Mar 1998 | Nakayama | Yayoi Sho | Jpn2 | 13 | 10 | 3 | 2nd | Koji Tokuyoshi | 55kg | T2000m | Firm | 2:01.9 | 0.1 | Special Week |
| 25 Jan 1998 | Nakayama | Junior Cup | R | 11 | 2 | 3 | 1st | Koji Tokuyoshi | 55kg | T2000m | Firm | 2:03.5 | 0.8 | (Mega Hit) |
| 05 Jan 1998 | Nakayama | Three Year Olds | - | 16 | 16 | 5 | 1st | Koji Tokuyoshi | 55kg | T1600m | Good | 1:36.7 | 1.0 | (Meine Carol) |