She won the rescheduled London Marathon by over three minutes, having broken away from the pack 18 miles (29km) into the race.
The competition heads into the group stages next month.
The nine tested positive when they returned to camp after a Christmas break.
While the Games will still be called the 2020 Olympics, they have been changed by Covid-19.
He died of a heart attack, having undergone brain surgery earlier this month.
