Sunday's final Group 1 T20 World Cup match against Bangladesh at Lord's is another must-win clash for the Proteas Women.

Tazmin Brits insists the Proteas Women will not become distracted by net run-rate permutations after her magnificent unbeaten century breathed fresh life into South Africa's ICC Women's T20 World Cup semi-final hopes.

Brits struck a career-best 114 not out as South Africa thrashed the Netherlands by 88 runs in Bristol, lifting the Proteas level with India on six points in Group 1.

However, India hold a superior net run rate after comprehensive wins over Pakistan, Bangladesh and the Netherlands, leaving South Africa with little margin for error. The Proteas must beat Bangladesh on Sunday and could yet find themselves relying on Australia's clash with India rather than the calculator.

"We're just going to go out there and try and win that game," Brits said. "We're not going to get into the run rates and stuff. We'll just show up."