Members of the U.S. track-and-field team, among others, also took to Twitter in recent days to complain about the marketing rules around the Games, which they said deprive them of income.

WSJ: Menu

Suhr's pole-vaulting win was the second gold medal the U.S. track-and-field team has secured during three full days of athletics competitions, following Sanya Richards-Ross winning the women's 400-meter race on Sunday night.

WSJ: Menu

The 160-strong US track and field team will train in and around the city as will 60 athletes from the Jamaican squad.

BBC: Clive Blair

Kearney was the first African-American coach to win an NCAA national team championship in Division I track and field, and she was the first African-American to serve as a head coach at Texas.

CNN: STORY HIGHLIGHTS

The Johannesburg-born athlete is joined in the South Africa track and field team by Caster Semanya.

CNN: STORY HIGHLIGHTS

The U.S. track team, which has been struggling to improve its track-and-field fortunes, grabbed its second gold of the games as Jennifer Suhr won the women's pole vaulting competition. (Cuba's Yarisley Silva got silver.) Overall, it was the U.S.'s 29th gold, two short of China for the lead.

WSJ: Menu

So he set a goal for himself -- he decided that he was going to make the Paralympic team in track and field.

WHITEHOUSE: Remarks by the First Lady at a Let's Move! London Event