Harness racing in New Zealand
Harness racing in New Zealand is primarily a professional sport which involves pacing and trotting competitions for Standardbred racehorses. The difference is the horse's gait or running style: pacing is where the two legs on the same side of the horse move forward at the same time, and trotting is where the horse moves its two diagonally opposite legs forward at the same time.
Source: Wikipedia — Harness racing in New Zealand (CC BY-SA 4.0)