"It's a nice thing to hear but, to be honest, I didn't really know that was the case. It's great it was good performance for us to put together collectively," he said.
A rendition of the team song and a quiet beer will probably suffice.
Which brings us to Williamson's personal record as skipper. His winning ratio has extended to 58 per cent after 19 victories from 33 tests in charge, eclipsing any of his predecessors' feats.
Geoff Howarth's next best, compiling 11 wins from 30 tests for a 37 per cent mark in the early 1980s, followed by Brendon McCullum securing 11 triumphs from 31 for a 35 per cent record from 2013-16. The country's longest-serving skipper, Stephen Fleming also had a 35 per cent victory rate, with 28 from 80 tests at the helm.
Williamson's leadership success ranks among the best in the game's history.
Of those to captain international sides in 20 or more tests, only six rank higher. Four are Australian - Steve Waugh (41 wins from 57 tests, 72 per cent), Sir Don Bradman (15 wins from 24, 63 per cent), Ricky Ponting (48 wins from 77, 62 per cent) and Lindsay Hassett (14 wins from 24, 58 per cent). Also in the half dozen are Indian contemporary Virat Kohli (33 wins from 55, 60 per cent) and England's Mike Brearley (18 wins from 31, 58 per cent).
If New Zealand win all their tests this summer, Williamson could move into fourth on 61 per cent.
To offer further context, those with a lower percentage include Sir Viv Richards (54 per cent), Steve Smith (53), Graeme Smith (49), Clive Lloyd (49) and Mahendra Singh Dhoni (45).