| Class: | Conditions |
| Horse Race: | 1,000 Guineas Trial Stakes |
| Location: | Ascot / Salisbury England |
| Last Run: | 9 April 1986 |
| Race Type: | Flat / Thoroughbred |
| Distance: | 7f (1,408 metres) |
| Surface: | Turf |
| Qualification: | Three-year-old fillies |
| Purse: | £8,000 (1986) 1st: £5,712 |
The 1,000 Guineas Trial Stakes was a flat horse race in Great Britain open to three-year-old fillies. It was run over a distance of 7 furlongs (1,408 metres), and it was scheduled to take place each year in early April.
The event was originally held at Ascot.[1] The present grading system was introduced in 1971, and the race was classed at Group 3 level. It was staged at Newmarket in 1978,[2] and transferred to Salisbury in 1979.[3] It was relegated from Group 3 status in 1983, and discontinued after 1986.
The race served as a trial for the 1000 Guineas Stakes. The last horse to win both events was Full Dress in 1969.
The equivalent race for colts was the 2,000 Guineas Trial Stakes.
Leading jockey since 1968 (3 wins):
----Leading trainer since 1968 (3 wins):
| border="1" style="border-collapse: collapse; font-size:90%" | ||||||
| Year | Winner | Jockey | Trainer | |||
|---|---|---|---|---|---|---|
| 1968 | width=160px | Ileana | width=170px | Ron Hutchinson | width=180px | Harry Wragg |
| 1969 | Full Dress | Ron Hutchinson | Harry Wragg | |||
| 1970 | Highest Hopes | Jimmy Lindley | Dick Hern | |||
| 1971 | Cawston's Pride | Brian Taylor | Freddie Maxwell | |||
| 1972 | Embroidery | Bill Williamson | Vincent O'Brien | |||
| 1973 | Cheveley Princess | Geoff Lewis | Harry Wragg | |||
| 1974 | Polygamy | Pat Eddery | Peter Walwyn | |||
| 1975 | no race | |||||
| 1976 | Gilding | Greville Starkey | Ian Balding | |||
| 1977 | Sanedtki | Alain Lequeux | Olivier Douieb | |||
| 1978 | Spring in Deepsea | Greville Starkey | Luca Cumani | |||
| 1979 | Tudor Maid | Edward Hide | John Winter | |||
| 1980 | Battlewind | Ray Cochrane | Ron Sheather | |||
| 1981 | Go Leasing | Greville Starkey | Guy Harwood | |||
| 1982 | Rose of | John Reid | Paul Cole | |||
| 1983 | Silverdip | Paul Cook | Ian Balding | |||
| 1984 | Meis El-Reem | Alain Lequeux | Olivier Douieb | |||
| 1985 | Dafayna | Walter Swinburn | Michael Stoute | |||
| 1986 | Migiyas | Richard Quinn | Paul Cole |