Every runner knows a PR doesn’t happen overnight; it can take years to accomplish. But with those years of experience comes better endurance and time to learn, test, and fine-tune training habits, allowing you to get faster as you get older.

“All the previous years of running have developed the psychological capacity to endure, not just the race, but the training to get to the race,” says Mike McKnight, founder of RunningWorkx and a run coach who specializes in working with older athletes. “Sometimes runners who started running late in life and established a baseline, but then learn, get more experience, or even get a coach ,” have dramatic cutdowns in time, he says.

To help you run your fastest times at any age, we gathered six tips from athletes who scored a PR after 50. Here’s what transformed their training.

Training Strategies From Runners Who Clocked Their Fastest Times After 50

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