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

Enhanced 400-m sprint performance in moderately trained participants by a 4-day alkalizing diet: a counterbalanced, randomized controlled trial, Journal of the International Society of Sports Nutrition

400 Metres

Wayde van Niekerk sets a 400-meter record that no one saw coming - The Washington Post

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

Strategy: How to Run the 400m

6 Phases of A Perfect 400m Race - stack

What's A Good 400m Time? Average 400 Meter Times By Age + Sex

The Trackwired 400 Meter Dash program was designed by elite coaches for athletes of all skill levels. Train over 8/12/16/20 week cycles. $24.99-$39.99

400 Meter Dash

Sydney McLaughlin-Levrone wins the 400 in near-record time - Los Angeles Times

Sydney McLaughlin-Levrone coasts to 400 win at US track and field championships in her newest event - The Columbian

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

The 400 Is a Sprint

2021 Tokyo Olympics - Women's 400 Meters Results

NEW Nike Zoom 400 Black Blue Sprint Track Spikes (AA1205-005) Men's Size 6-6.5