Ramnaresh Sarwan (West Indies) – 213.33 vs South Africa (at Cape Town on 9th February 2003)
It was the opening game of the 2003 ODI World Cup (Group Stage), where the hosts South Africa faced West Indies. After winning the toss, the Caribbean team initially struggled due to the early dismissal of their openers, but the next batsmen handled the situation very well, including the centurion knock from Brian Lara (116 runs).
Coming to bat in the late moment of that first innings (46th over), Ramnaresh Sarwan scored 32 not out off just 15 balls with the help of 2 fours and 2 sixes. His strike-rate in that innings was 213.33.
While West Indies scored 278/5 (50 overs), South Africa lost that game by just three runs as they were restricted to 275/9 in 49 overs (South Africa were fined one over for a slow over-rate).