England picked up their first title on the Sevens World Series this season after beating competition leaders South Africa 21-14 in the final of the Tokyo tournament on Sunday. Phil Burgess, Charlie Hayter and Tom Mitchell scored the tries in the final for the English, who bounced back from a thumping group stage defeat to Fiji on Saturday to win a first title since the Wellington Sevens in Feb. 2013. 'I am unbelievably proud of this team. It's a huge effort and we are so grateful to deliver this title,' skipper Mitchell said after victory at a wet Prince Chichibu Memorial Rugby Ground. England's  James Rodwell (left) celebrates with his team-mates following their final victory in Tokyo . England defeated championship leaders South Africa 21-14 in the decider of the Sevens Word Series event . The England victory is their first since February 2013 and puts them fourth in the series so far . The 22 points moved them onto 100 and ahead of Australia into the fourth and final Olympic qualifying position available from the series. Further spots are available for next year's Rio de Janeiro Games via regional qualifiers . South Africa still lead the way after collecting 19 for the runners-up spot to move onto 129, four clear of Fiji with only two rounds left in the series in Glasgow and London next month. The Fijians, winners of the last two tournaments in Las Vegas and Hong Kong, picked up 17 points in Tokyo after edging Canada 21-19 to finish third. Phil Burgess streaks away to score England's first of three tries in their triumph in Japan . South Africa's Cecil Afrika (centre) kicks on the run as rain stream down during the Tokyo Sevens final . The Fijian's hat-trick bid was ended by the South Africans in a nervy, error-strewn semi-final that the Blitzbokke took 7-5. New Zealand, winners of 12 of the 15 Sevens World Series titles and reigning World Cup sevens champions, endured a disappointing week in the Japanese capital, suffering a first ever loss to Canada in the quarter-finals. The 19-15 defeat sent them into the second tier Plate tournament, which they won after beating France in the last four and then Scotland in the final after Dylan Collier's try in the last play of the game. The 13 points keeping them third on 120. Tom Mitchell needs all of his strength to get to the line as South Africa's Werner Kok tries to pull him up . Mitchell holds off Kok as he just makes the line for England's third try in the important seven-point win . Trans-Tasman rivals Australia dropped to fifth after a weekend to forget in Tokyo. After losing to Portugal and Scotland in group play on Saturday, they then suffered a heartbreaking defeat to the United States in the lung-busting final of the third tier Bowl event. Perry Baker scoring the match ending try in extra time as the ever-improving Americans prevailed 17-12. Portugal won the Shield after edging Argentina 12-7 but last-placed Japan closed the gap on the Iberians to eight points in the battle to avoid relegation after picking up 10 for making a first Cup quarter-final.
England beat South Africa 21-14 in the final at the Prince Chichibu ground .
England hadn't won a tournament since Wellington in February 2013 .
Phil Burgess, Charlie Hayter and Tom Mitchell scored England's tries .
Win puts England fourth in series into the final Olympic qualifying spot .