The record for the most runs in an ODI series is held by Virat Kohli, who scored 765 runs in the 2023 ICC Cricket World Cup. His remarkable performance included three centuries and six half-centuries, averaging 95.62 across 11 matches. Other notable performances include Greg Chappell's 686 runs in the 1980-81 Benson & Hedges World Series and Sachin Tendulkar's 673 runs in the 2003 ICC Cricket World Cup