Kane Williamson is a couple of decent knocks away from usurping Virat Kohli as the best batsman in the world.
His magnificent unbeaten double-century in the opening test against Bangladesh has lifted the New Zealand skipper to within seven points of his Indian counterpart.
If Williamson can match his average (53.20) across the final two tests he will end the series as the world number one.
The 28-year-old's 915 ranking points equates to the highest by any New Zealander in test cricket, surpassing Sir Richard Hadlee who broke the 900 mark multiple times throughout his stellar career.
Williamson had a short stint at number one in 2015.
Despite scoring a half-century Henry Nicholls has dropped below Joe Root and strangely David Warner, who hasn't played a test in 12 months.
Tom Latham is up to 11th, Ross Taylor drops to 24th and Jeet Raval has made a big jump to 33rd.
Trent Boult and Tim Southee remain in the top 10 test match bowlers, while the Blackcaps retain their second-place ranking.