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.

8x400 Treadmill Sprints - Fitting It All In

Holler Shop – Track Football Consortium

Why is 400m so hard? - Quora

Needs Analysis of a 400m Sprint; biomechanics, physiology or just poor race tactics?

Run It Back: Howard County Native is #1 Nationally for Sophs in 400m

Can You Believe THIS Is Considered a Sprint!?

Stride Length vs Stride Frequency in the 400 Metres – Žiga P. Škraba

College track and field: Tech men's sprint relay advances to NCAA final

Yelverton World's Top 400-Meter Sprinter Over 60 - The Murfreesboro Pulse

The 400 Is a Sprint

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