MOSCOW The Northern Arizona track and field program will have three former athletes Lopez Lomong, Diego Estrada and Jordan Chipangama competing in the 2013 IAAF World Outdoor Track and Field Championships. The meet will be held in Moscow's Luzhniki Stadium, beginning on Saturday, August 10. The meet will go all the way to August 18, with some of the nation s best track and field performers vying for a world championship.