The colt's other notable results that year came in October when he ran second to stablemate Rock of Gibraltar in England's Dewhurst Stakes at Newmarket Racecourse.
As a three-year-old, Landseer finished third in April's Prix de Fontainebleau at Longchamp Racecourse in Paris then won the May running of the Group One Poule d'Essai des Poulains.
Ridden by Edgar Prado, he defeated what Thoroughbred Times described as a "quality-laden field" in capturing the Grade I Shadwell Turf Mile Stakes at Keeneland Race Course in Kentucky.
Racing in the middle of a fourteen-horse field for the first half mile, jockey Edgar Prado made a move with Landseer but at the top of the stretch the colt went down.
Rock of Gibraltar, who started poorly and was far back most of the way, had to swing around the fallen Landseer but made a powerful stretch run to finish second behind longshot winner, Domedriver.