It'll start with a spin, a heave and a landing thud, and then take off from there. The USA Track & Field Outdoor Championships start Wednesday at the steps of the California state Capitol.

LaShawn Merritt celebrates with Old Glory after winning gold in the men’s 400-meter final at the World Athletics Championships in Moscow last August.

Allyson Felix from the U.S. reacts after crossing the line to win the women’s 200-meter race during the Diamond League athletics meet in London last July.