Potchefstroom: Heinrich Klaasen hit a 54-ball unbeaten 119 as hosts South Africa beat West Indies by four wickets in the third one-day international on Tuesday.
Chasing 261 to win, Klaasen came to the crease at 80-4 but his knock guided the home team cruise home in 29.3 overs.
It is the fastest any side has chased more than 250 in a men’s ODI.
West Indies were bowled out for 260 with Brandon King making 72 and left-arm seamer Marco Jansen and spinner Bjorn Fortuin both taking 2-46.
The series ended 1-1 after the opening ODI was washed out.
South Africa will now face the Netherlands on 31 March and 2 April, with the games deciding who earns the eighth and final automatic qualification spot for October’s 50-over World Cup.
West Indies currently occupy eighth with 88 points, while South Africa are ninth with 78 points.
Ten points are awarded for a win but teams level on points are split by wins before net run-rate, meaning South Africa must win at least one of the games against the Netherlands and avoid defeat in the other to climb above West Indies.
Sri Lanka, who are currently 10th with 77 points and play a three-match series in New Zealand between 25-31 March, could qualify if South Africa slip up.
