spin
v.β Β«βSpinning” is the racetrack term for maneuvering by which agents change mounts shortly before entries are taken, or trainers change riders.Β» ββJockey Agents Always On Alert βSpinningβ Causes Backstretch Agony” by Bob Fortus New Orleans Times-Picayune (La.) Dec. 23, 1999. (source: Double-Tongued Dictionary)