Alan Webb confirms Millrose will be retirement track race. ``Burned out from running,'' now training for triathlons. Webb, 31, texted, ``I am serious about triathlon. I am in Arizona working with a USA Triathlon group right now. Something I have always wanted to do since I was a kid. And I am burned out from running.'' Webb burst onto track scene as a high school star and ran a 3:53.43 mile in 2001 to break Jim Ryun's HS record. In 2007 he broke Steve Scott's American record with a 3:46.91, a mark he still holds. News of his retirement was first broken by Runners World, via Webb's longtime agent, Ray Flynn.