Time/Speed/Distance or TSD Rallying is a motor sport that can be enjoyed by anyone with virtually any sort of motor vehicle. Not to be confused with PRO rallying, which is a form of racing, TSD is a course-following event involving control of vehicle speed. Competitive teams comprise of a driver and navigator utilizing a set of instructions detailing the course they must follow and the speeds they must travel. Since public roads are used for those events, speeds are set at or below the posted legal speed limits. The goal is to follow the course correctly and arrive on time at checkpoints encountered along the way. Scoring is based on the difference between the competitor’s actual arrival time versus their calculated arrival time at the checkpoint.
The following slides will give you more information about the rally!