Speed work should support the goal, not become the goal.
A productive interval session is controlled enough that you can repeat the intended quality without turning the last rep into survival mode.
Use faster running to practice mechanics, improve running economy, and develop specific race demands. The right pace depends on the session, your current fitness, and what comes before and after it in the week.
- Warm up gradually before faster work
- Use effort as a guardrail when conditions change
- Keep recovery long enough to preserve session quality
- Stop chasing splits when form clearly deteriorates


