Fiji climbed to the top of the standings in the World Rugby Sevens Series after winning the London Sevens for the second year running.
They beat Australia 43-7 at Twickenham to go two points clear of the USA, who beat France 31-14 in the bronze final.
The final leg is next week in Paris but the top four sides – and direct Olympic qualifiers – are already assured.
Despite losing both games on Sunday, South Africa will join Fiji, the USA and New Zealand at Tokyo 2020.
England still had a small chance of catching ‘the Blitzboks’ but were beaten 24-19 by Samoa in the Challenge Trophy quarter-finals. The hosts then beat Spain (40-21) before losing to Japan (29-14) in the 13th-place play-off.
England can still reach Tokyo 2020 via a European qualifying tournament in July.
Wales beat Japan 17-0 in the Challenge Trophy quarter-finals to ease their relegation fears while Scotland overcame Kenya (29-21) and Wales (33-7) to reach the Challenge Trophy final, where they lost 26-17 to Samoa.
Ireland upset the hosts on Saturday by beating them in Pool C and despite losing 33-24 to Fiji in Sunday’s Cup quarter-finals, they beat Canada (33-14) before losing to New Zealand (35-14) in the fifth-place play-off.