An Australian protester who disrupted this year's university boat race on the Thames in London has been sentenced to prison for six months.
Trenton Oldfield, 36, swam in front of the Oxford and Cambridge crews at the halfway point of the annual race in April, narrowly avoiding being injured.
He was arrested for causing a public nuisance.
At the time, he said the stunt was aimed at drawing attention to elitism in Britain.
In sentencing, the judge said Oldfield did nothing to address inequality by giving himself the right to spoil the enjoyment of others.
The 158th race was eventually restarted and Cambridge won.