L'Emigrant made his racecourse debut in a maiden race over 1200 metres at Deauville Racecourse in August in which he finished second by a neck to Crystal Glitters, a subsequent Group One winner. In the following month, the colt was moved up in class to contest the Group Three Prix La Rochette over 1600m at Longchamp Racecourse. Ridden by Lester Piggott, he took the lead 400m from the finish and won impressively by three lengths from Le Voleur. On 10 October L'Emigrant was ridden by Cash Asmussen in France's premier race for two-year-olds, the Grand Criterium over 1600m on soft ground at Longchamp. He took the lead in the straight and held off the challenge of Deep Roots but was overtaken in the closing stages by Saint Cyrien, and finished second by a length. In late October, L'Emigrant ran in the Criterium de Maisons-Laffitte over 1400m in which he was opposed by Crystal Glitters, the Prix Thomas Bryon winner Bal des Fees and three challengers from England. Starting the odds-on favourite he took the lead 300m from the finish and won comfortably by one and a half lengths from Drumalis, who was carrying seven pounds less than the winner.
1983: three-year-old season
L'Emigrant began his three-year-old season in early April, when he recorded an easy three length win over Ginger Brink in the Prix Djebel over 1400m at Maisons-Laffitte. Later that month he started second favourite behind Saint Cyrien in the Poule d'Essai des Poulains over 1600m at Longchamp. Asmussen sent the colt into the lead on the turn ito the straight and he turned back several challengers to win comfortably from Crystal Glitters, Margouzed and the British-trained Sackford, with Saint Cyrien in sixth. L'Emigrant was then aimed at the Prix du Jockey Club and prepared for the race by running in the Group One Prix Lupin over 2100m at Longchamp on 15 May. Starting the 7/10 favourite on extremely heavy ground he won the race, but was not particularly impressive: he took the lead in the straight but appeared to be tiring in the closing stages and had to be ridden out by Asmusen to win narrowly from Lovely Dancer and Pluralisme. In the Prix du Jockey Club over 2400m at Chantilly Racecourse on 5 June, L'Emigrant started joint-favourite with the Irish-trained Caerleon. Asmussen restrained the colt in the early stages before producing him with a late run in the straight, but he was never able to get close enough to mount a serious challenge to Caerleon and was beaten three lengths. There was some criticism of Asmussen after the race from commentators who felt that he had given the horse too much ground to make up, while other pointed to L'Emigrant's demanding spring campaign as the reason for his failure. Asmussen, however, said that the colt failed to stay the distance and was "beaten by a better horse that day". Following his defeat at Chantilly, L'Emigrant was brought back in distance for his next three races. On 28 June he was matched against older horses for the first time when he started odds-on favourite for the Prix d'Ispahan over 1900m. He finished third behind Crystal Glitters and Darly, having been given an indifferent ride by Asmussen, who again employed exaggerated waiting tactics. L'Emigrant's next race was the Prix Jacques le Marois over 1600m at Deauville Racecourse in August. Starting favourite at odds of 11/4 he got the better of a sustained struggle with the British challenger Noalcoholic but was overtaken in the closing stages and beaten one and a half lengths by the improving filly Luth Enchantee. The unplaced horses included Ma Biche, Crystal Glitters and Deep Roots. On 4 September L'Emigrant and Luth Enchantee met again in the Prix du Moulin at Longchamp. On this occasion, L'Emigrant was retrained by Asmussen in the early tages before accelerating clear of the field in the straight. He looked almost certain to win, but was caught by Luth Enchantee in the closing stages and was beaten half a length. The pair finished eight lengths clear of the rest of the field, which included Wassl, L'Attrayante, Horage and Crystal Glitters. On his final appearance, L'Emigrant was sent to the United States and moved up in distance for the Man o' War Stakes over eleven furlongs at Belmont Park. He made the running for a mile, but faded in the straight and finished third behind Majesty's Prince and Erin's Isle.
Assessment
In the official International Classification for 1982, L'Emigrant was rated the seventh-best two-year-old in Europe. The independent Timeform organisation gave him a rating of 125, eight pounds below their top-rated two-year-old Diesis. In 1983 the International Classification rated L'Emigrant the best three-year-old colt in France, the third best three-year-old colt in Europe behind Shareef Dancer and Caerleon and the fifth best horse of any age. Timeform gave him a rating of 129, seven pounds behind their highest-rated horse Habibti.
Stud record
L'Emigrant was retired from racing to become a breeding stallion at the Gainesway Farm with a valuation of $13 million. He was not a success at stud, but sired a few good winners including Mary Linoa and Summer Trip. One of his sons, Grey Duster became a successful competitor in equestrian competitions in China, winning an event at the National Gamesin 2001. His last recorded foals were born in 1995.