tweet Email this page ← Back to article 2015 Prefontaine Classic - Eugene Diamond League Track and Field May 29, 2015 to May 30, 2015, Hayward Field, Eugene, OR LetsRun.com event coverage tweet Related event: 2015 Prefontaine Classic - Eugene Diamond League Track and Field Posted in: Doping Tags: Justin Gatlin Related Articles Christian Coleman Is the New King of the 100 Meters — And All That Comes With It September 28, 2019 2019 Worlds Men’s 100 Preview: Christian Coleman, Justin Gatlin, & Controversy as Post-Usain Bolt Era Begins September 23, 2019 2019 Zurich DL Final Preview: WR Potential in the 400 Hurdles, Coburn Chases Sub-9:00, Dibaba vs. Hassan, & So Long to the Men’s 5K August 28, 2019 Best of USAs Day 1: Felix Is Back, Brazier Still Hasn’t Run For More Than an Hour, and Why Kate Grace Chose the 1500 (And Clayton Murphy Didn’t) July 26, 2019