Kevin O'Brien of Ireland scored the fastest century in Cricket World Cup history, off just 50 balls. He achieved this during the 2011 World Cup against England in a thrilling run chase. O'Brien's power-packed knock helped Ireland chase down a massive target of 328, marking one of the greatest upsets in World Cup history.
His aggressive batting and fearless approach stunned the cricketing world, showing that even Associate nations can produce match-winners. The innings is still remembered as a historic performance in World Cup folklore.