Martin Guptill 93 off 30 Balls vs. Sri Lanka (2015)

The innings was almost a blur. He hit eight sixes and nine fours, meaning 60 per cent of the balls he faced disappeared to the boundary. His fifty off 17 balls is a New Zealand record. He might have threatened AB de Villiers' fastest hundred - off 31 balls - had Sri Lanka got a few more runs for him to gun down.