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.
[1] The present grading system was introduced in 1971, and the race was classed at Group 3 level.
The race served as a trial for the 1000 Guineas Stakes.
The equivalent race for colts was the 2,000 Guineas Trial Stakes.