Day 2 Recap: 2013 Prefontaine Classic - FloTrack
400 Metres
Niekerk breaks 400m world record - DTNext.in
Kenny Selmon Claims National Title in 400-Meter Hurdles, Earns Spot on Team USA - Chapelboro.com
400 Meter Training - A Scientific Approach
Salwa Eid Naser- First Asian to win women's 400m world title | Sports News,The Indian Express
400 Metres
First-Time Olympian Emma Weyant Posts Fastest Time In Women's 400-Meter IM
Dakota State University Athletics - DSU women's 4 x 400-meter relay hit third fastest time in school history at 2021 Drake Relays
Wayde van Niekerk: Five things to know about the Olympic 400m champion and world record holder
Jones dashes to world's second-fastest 400 time - Horns Illustrated
Rai Benjamin heads to Tokyo Olympics after second fastest 400m hurdles
Indianapolis sprinter Lynna Irby wins in Monaco with world's best time of 2020
Wayde van Niekerk smashes Michael Johnson's record to claim 400m gold | Rio 2016 | The Guardian
43.03 – The Fastest 400m in History – Žiga P. Škraba
43.03 – The Fastest 400m in History – Žiga P. Škraba
Why The 800 Meter Run Should Be Treated Like The 400 Meter Dash
Naser stuns the world with fastest 400m time since East German Koch
USA Track Olympic Trials: Lynna Irby advances in 400 meters
Karsten Warholm breaks men's 400 hurdles world record in Norway
New York runner sets second-fastest time in nation in 400, does it without starting blocks | USA TODAY High School Sports
4 Goals of 400m Training
Track and field athletes see personal bests and event victories over busy weekend - Daily Bruin
Falcons Open Action at Texas Tech - Air Force Academy Athletics
