Who is the highest run-scorer in an ODI World Cup?

The highest run-scorer in a single edition of the ODI (One Day International) Cricket World Cup is Sachin Tendulkar of India. He achieved this record during the 2003 Cricket World Cup, held in South Africa, Zimbabwe, and Kenya. In that tournament, Tendulkar scored a total of 673 runs in 11 matches, an extraordinary feat that remains unsurpassed in World Cup history. His performance was a key factor in India reaching the final of the tournament.