Details
| Name / Japanese | Diana Tholon / ダイアナソロン |
| Birth Year | 1981 |
| Sex | female |
| Earnings | 159,766,700 yen |
| Races-Wins / G1-Wins | 13-5 / 4-1 |
| Sire | Partholon |
| Dam (Sire) | Begonia (Hikaru Takai) |
| Other site link | JBIS / Umanity / en.netkeiba |
| Awards | Yushun Award for Best Three-Year-Old Filly (1984) |
All grade races
| Y D/M |
Track | Race | No. | Pl. |  |
| 1984 18/03 |
Hanshin T1400 |
Hochi Hai Yonsai Himba Tokubetsu (G2) | 9 | 6 | |
| 1984 08/04 |
Hanshin T1600 |
Oka Sho (G1) | 9 | 1 | ◆ |
| 1984 20/05 |
Tokyo T2400 |
Yushun Himba (Japanese Oaks) (G1) | 3 | 2 | ◆ |
| 1984 09/09 |
Hanshin T1600 |
Sapphire Stakes (G3) | 1 | 1 | |
| 1984 14/10 |
Kyoto T2000 |
Kansai TV Sho Rose Stakes (G2) | 3 | 3 | |
| 1984 04/11 |
Kyoto T2400 |
Queen Elizabeth Ⅱ Cup (G1) | 2 | 3 | ◆ |
| 1984 25/11 |
Tokyo T2400 |
Japan Cup (G1) | 3 | 14 | ◆ |
| 1985 24/02 |
Hanshin T1600 |
Yomiuri Milers Cup (G2) | 12 | 3 |
- In the Oka Sho, she was 3rd favorite.
She took the lead as early as the last corner.
She went on to win by 5 lengths over the 2nd place finisher.
This race was the first G1 race since the JRA introduced the grading system in 1984, so she became the first G1 winner in Japan. - In the Yushun Himba (Japanese Oaks), she was 1st favorite.
She got off to a slow start at the start of the race.
She once took the lead in the homestretch, but was passed by Tokai Roman.
She tried again to overtake Tokai Roman, but could not catch her and finished 2nd. - She then beat Kyowa Thunder in the Sapphire Stakes, but was beaten by Kyowa Thunder in the Queen Elizabeth II Cup and finished 3rd.
- She won the Yushun Award for Best Three-Year-Old Filly (1984).