What are pacing metrics typically based on?

Pacing metrics are primarily based on physiological and performance indicators that provide valuable insights into an athlete's running capabilities. Heart rate measurements help determine how hard the body is working during a run, enabling athletes to gauge their exertion levels and adjust their pacing accordingly. GPS data offers precise information about distance and speed, allowing runners to analyze their pace over various segments of their training or race. The Rate of Perceived Exertion (RPE) gives a subjective assessment of how difficult a runner feels their effort is, which can also inform pacing strategies.

Combining these elements creates a comprehensive understanding of how to maintain an optimal pace, tailor training efforts, and improve performance. Therefore, pacing metrics derived from heart rate, GPS, and RPE provide a solid foundation for setting and adjusting goals, making them crucial for effective training and racing strategies.