The 400 Is a Sprint

The 400m is a sprint; the 800 is the hybrid. And although speed training for the 400m seems counterintuitive, it should be the priority.

The 400 Is a Sprint

Coaching the 400m With a Feed the Cats Approach

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How running 400m regularly can benefit your 100m times - PE Blog

NEW Nike Zoom 400 Black Blue Sprint Track Spikes (AA1205-005

Why I Coach the 400m With a Feed the Cats Approach

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How to Run the 400 Meter Dash : 7 Steps - Instructables

400 metres at the Olympics - Wikipedia