Martin led the first 49 laps and 26 more later on, but couldn't sustain it in his bid to become the oldest Sprint Cup winner, finishing 21st.

NPR: Edwards Ends Long Drought At Phoenix

Competing for the first time since finishing 26th at the Olympics, Swain attempted a new repertoire of more difficult dives in a bid to improve his chances against the world's best.

BBC: Calvert pips Swain to diving gold

Saturday night, Edwards vowed to push on despite finishing third in the state where he was born and the only state he won in his 2004 bid for the presidential nomination.

NPR: What Obama's Win Means for Super Tuesday