Sir Chris Hoy told the BBC: "It's just immense pride to be able to do it here, in the UK, in front of this crowd who have been phenomenal. You can't overstate what this means to us in front of a home crowd. This is a once in a lifetime opportunity."
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Students at Marysville-Pilchuck High School in Washington are overcome with emotion at hearing their classmate was shot dead.
Northwestern Scotland and Northern Ireland face a rain-hit weekend, while the rest of Britain enjoys some bright but generally dry weather.
All this week while reporting, I have been taking photos. They offer powerful portraits of the lives affected by the desperate outbreak.