When Williamson finishes up he may well set batting records no other New Zealander will get close to. His test average is now 51.16 and is set to continue climbing.
If not for rain yesterday, he would surely have captained his team to the first test win over South Africa since 2004.
Williamson is the product of a supportive, loving family and was nurtured along the way at Pillans Point Primary, Otumoetai Intermediate and Tauranga Boys' College, where he was head boy.
The traditions of the game and how you behave matter to him. They are reflected in his demeanour and how his team acts in the heat of battle.
The spiteful scenes in India between warring captains Steve Smith of Australia and India's Virat Kohli in the series that finished this week are a blight on the game.
It is a sure bet that at no stage will Williamson ever bring the game into disrepute to those levels.
South Africa's world class pace bowler Morne Morkel best summed up Williamson's innings of 176 in Hamilton.
"Kane was exceptional. It was a fantastic innings. He's a hard man to bowl to."
High praise indeed.