The sub-2-hour marathon barrier has fallen. Why now and how?

With two runners breaking the two-hour barrier in London, the men’s marathon is entering a new era where performance is increasingly shaped by more than just the athlete.

The sub-2-hour  marathon barrier has fallen. Why now and how?
With two runners breaking the two-hour barrier in London, the men’s marathon is entering a new era where performance is increasingly shaped by more than just the athlete.

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