Whakaotihia te rerenga e whai ake nei: I te Hui-tanguru 2013, i toa a Derrick i te US Senior Men 12,000 mita USA Cross Country Championships i te 35:38 i Forest Park i St. Louis Missouri, hei tohu mo te
Ko te 2013 IAAF World Cross Country Championships i noho ai ia ki te 10th.