|Breeder||4th Earl of Dunraven|
|Owner||Sir John Rutherford|
|Exeter Stakes (1924)|
Ascot Derby (1925)
Princess of Wales's Stakes (1925)
St. Leger Stakes (1925)
Ascot Gold Cup (1926)
Coronation Cup (1926)
|Leading sire in Great Britain & Ireland (1937)|
Leading broodmare sire in Britain & Ireland
(1943, 1949 & 1950)
|Solario Stakes at Sandown Park Racecourse|
LNER Class A1 locomotive no. 4473
Bred in Ireland by the 4th Earl of Dunraven, he was by the 1918 English Triple Crown champion, Gainsborough. His dam Sun Worship, was a daughter of the outstanding sire Sundridge who was the Leading sire in Great Britain & Ireland in 1911.
At age two, Solario won the 1924 Exeter Stakes and was second to Picaroon in the Middle Park Stakes. As a three-year-old, he finished fourth in the first two British Classic Races then won the third, the St. Leger Stakes. At Ascot Racecourse he won the 1925 Ascot Derby. At age four, Solario ran away from the field while winning the 1926 Coronation Cup by fifteen lengths then won the Ascot Gold Cup.
Solario commenced stud duties at Newmarket at a fee of 500 guineas a mare. In 1932 he was sold following the death of his owner, Sir John Rutherford. In his will, Rutherford left two pictures of Solario and the Coronation Cup he won to the Blackburn Museum and Art Gallery. Solario was sent to stand at Terrace House Stud (now Tattersalls' Park Paddocks in Newmarket, Suffolk). In 1937, he was the Leading sire in Great Britain & Ireland when his son Mid-day Sun won The Derby and his daughter Exhibitionnist won the 1,000 Guineas Stakes and Epsom Oaks. Solario sired his second Epsom Derby winner when another son, Straight Deal, won the 1943 running.
Solario died at the age of twenty-three in 1945 having sired the winners of £270,000 in stakes. He is buried at Tattersalls' Park Paddocks in Newmarket.
Selected notable offspring
- Sunny Devon (f. 1928) – won Coronation Stakes, Champion Three-Year-Old Filly in England
- Dastur (f. 1929) – won 1931 Woodcote Stakes, in 1932 won Irish Derby, Ascot Derby Stakes, Sussex Stakes, in 1933 won Coronation Cup, Champion Stakes
- Silversol (f. 1930) – won the: 1936 Irish Oaks
- Tai-Yang (f. 1930) – won 1933 Jockey Club Stakes
- Raeburn (f. 1933) – won the 1936 Irish Derby
- Sind (f. 1933) – Leading sire in Argentina in 1950
- Exhibitionnist (f. 1934) – won 1000 Guineas, Epsom Oaks
- Mid-day Sun (f. 1934) – won Epsom Derby, Hardwicke Stakes, Lingfield Derby Trial 
- Solar Flower (f. 1935) – won Coronation Stakes, dam of Solar Slipper
- Sadri II (f. 1936) – won 1941 Durban July Handicap
- Straight Deal (f. 1940) – won 1943 Epsom Derby
Solario was the Leading broodmare sire in Great Britain & Ireland in 1943, 1949 and 1950. Through his daughters, he was the damsire of:
- Escamillo (f. 1939) – winner of the 1943 Grand Prix de Saint-Cloud
- Solar Slipper (f. 1945) – won the 1948 Champion Stakes and 1949 John Porter Stakes
- Cavan (f. 1955) – won the American Classic, the Belmont Stakes
- Indiana (f. 1961) – won St. Leger Stakes
In 1925 the London and North Eastern Railway (LNER) began a tradition of naming locomotives after winning racehorses; LNER Class A1 locomotive no. 4473 (later no. 104, BR no. 60104) was named Solario after this horse, and remained in service until December 1959. Sandown Park Racecourse have a hospitality area known as the Solario Suite.
|St. Frusquin||St. Simon|
|Electric Light (Family No. 26)|
- Leicester, Sir Charles (1969). Bloodstock Breeding. London: J. A. Allen & Co.
- Boddy, M.G.; Fry, E.V.; Hennigan, W.; Proud, P.; Yeadon, W.B. (July 1963). Fry, E.V. (ed.). Locomotives of the L.N.E.R., part 1: Preliminary Survey. Potters Bar: RCTS. p. 50.
- Nock, O.S. (1985). British Locomotives of the 20th Century: Volume 3 1960-the present day. London: Guild Publishing/Book Club Associates. pp. 70–71. CN9613.
- Boddy, M.G.; Neve, E.; Yeadon, W.B. (April 1973). Fry, E.V. (ed.). Locomotives of the L.N.E.R., part 2A: Tender Engines - Classes A1 to A10. Kenilworth: RCTS. pp. 72–73, 218, fold-out sheet inside rear cover. ISBN 0-901115-25-8.