Tyson Gay takes first place in the men’s 100 meter dash final. (Meerah Powell/Emerald)

Trayvon Bromell walks it off after a close second place against Tyson Gay in the men’s 100 meter dash final. (Meerah Powell/Emerald)

Sharika Nelvis waves to fans after racing one of the fastest times in the world and placing first in women’s 100 meter hurdlers preliminary round. (Meerah Powell/Emerald)

Women’s 1,500 meter preliminary run. (Meerah Powell/Emerald)

Dalilah Muhammad places third in women’s 400 meter hurdles preliminary round. (Meerah Powell/Emerald)

UO athlete Jenna Prandini places sixth in women’s 100 meter dash final. (Meerah Powell/Emerald)

Sprinter Jasmine Todd (left) takes third place in the women’s 100 meter dash final. (Meerah Powell/Emerald)

Tori Bowie happily waves her American flag after taking first place in women’s 100 meter dash final. (Meerah Powell/Emerald)

Carmelita Jeter (left) collapses on the track after suffering injury during women’s 100 meter dash. (Meerah Powell/Emerald)

Bershawn Jackson runs in men’s 400 meter hurdle semi-finals. (Meerah Powell/Emerald)

LaShawn Merritt qualifies for the men’s 400 meter final. (Meerah Powell/Emerald)

Allyson Felix prepares for a run that ultimately qualifies her for the women’s 400 meter finals. (Meerah Powell/Emerald)

An air of immense excitement hung over Hayward Field in the second day of the USATF Outdoor Championships. (Meerah Powell/Emerald)