1 · Two gaits
Trot and pace, not a gallop
A standardbred is asked to race on a specific gait for the whole mile. A trotter moves on diagonals — left front with right hind, right front with left hind. A pacer moves on laterals — both left legs, then both right. The gallop you grew up watching is the thing they are not supposed to do.
Overnight cards in North America are mostly pacing. The championship calendar still splits the two: Hambletonian and Yonkers Trot on one side, Meadowlands Pace, Messenger, and the Jug on the other. Same sport. Different muscle memory.