The Filly by Selim (1812 – 26 May 1815) was an unnamed British Thoroughbred racehorse who won the second running of the classic 1000 Guineas at Newmarket Racecourse in 1815.
[2] The Selim Filly's dam was an unnamed mare sired by Cesario out of Pea-hen, the sister of a good racemare named Plover who won a King's Plate at Newmarket 1810.
Until 1913 there was no requirement for British racehorses to have official names (two-year-olds were allowed to race unnamed until 1946).
f. by Selim, dam by Cesario, out of a sister to Plover") started the 3/1 second favourite behind Minuet a filly owned by the Duke of Grafton who had won the July Stakes in 1814.
The field was made up by Minuet's stable companion Discord and an unnamed bay filly owned by Mr Rush.