Scenario 1:
Ball 1: Batsman A hits a six and acknowledges the cheers for his century, but while hitting the shot develops a cramp and gets retired hurt.
Ball 2: New batsmen arrives at the crease, tries to steal a single but gets run out at non striker's end. As wicket no 9 goes down, the retired batsman (Batsman A) comes to the crease and stays at non striker end.
Ball 3 : Batsman B, now at the striker's end, hits another six and acknowledges the cheers for his century.
The team wins and both end up scoring 100.
Scenario 2:
Opposite of the above, Batsmen B faces the first ball and Batsman A faces the last.
Scenario 3:
Ball 1: Batsman A runs 3 and the fielder overthrows for boundary. But the umpire cancels 1 run for batsman running midway on the pitch. Effectively, only six runs are awarded and the first batsman completes 100.
Ball 2: Batsman B hits six. Match won.
Scenario 4:
Opposite of 3