Complex sentence: Morvich ended his 1922 campaign with the Derby his only victory in five starts and after finishing unplaced in the Fall Highweight Handicap at Aqueduct Racetrack, he was retired to stud duty where he proved less than successful as a sire.
Split into simpler sentences: Morvich ended his 1922 campaign with the Derby his only victory in five starts. After finishing unplaced in the Fall Highweight Handicap at Aqueduct Racetrack, he was retired to stud duty, where he proved less than successful as a sire.