Anya Shrubsole was delighted by her performance as England's women kept alive their chances of reaching the final of the World Cup in India.
Shrubsole claimed 5-17 as South Africa were bowled out for 77 in 29.3 overs with England winning by seven wickets in this Super Sixes clash in Cuttack.
Shrubsole admitted: "I had a pretty good day with the ball today. Everything seemed to have clicked really well for me.
"But I am just happy to contribute towards a really good team performance and get the win that we vitally needed."
England reached their target with 40.3 overs to spare at the Barbati Stadium, closing the net run-rate gap on a New Zealand side they will face in a possible make-or-break match on Wednesday.
Shrubsole added: "We knew we had to come here and win really well and that's what we did. It was the perfect game for us.
"As a bowling unit, we have been going pretty well and obviously Charlotte has that confidence in us to go out and do a job. That is what we have done today.
"We are really happy as a bowling unit again and the batters today backed us up and knocked off the runs quickly - as they needed to."