Both teams finished on three points
West Indies were eliminated from the Champions Trophy when rain halted their clash against South Africa who reached the semi-finals after avoiding defeat.
The West Indies were chasing South Africa's 230-6, from a rain-reduced allocation of 31 overs, and were on Duckworth Lewis par 190-6 off 26.1 overs before the rain came down again.
The teams both finished on three points, but South Africa go through with a better net run rate.
They join India in the semi-finals.