Williamson became the first New Zealand batsman to score more than 2000 runs in all international cricket in a calendar year. He has so far scored nearly 400 runs more than anyone else in international cricket this year. Ricky Ponting (2833 runs in 2005 and 2657 runs in 2003) and Kumar Sangakkara (2813 runs in 2014) are the only other batsmen who have ever scored more runs in international cricket in a calendar year.
Recently, Williamson became the second New Zealand batsman after Glenn Turner to top the ICC Player Rankings for Test Batsmen after producing a man of the match performance in the Hamilton Test against Sri Lanka, which helped the home side win the match by five wickets and the series 2-0.
It completed a golden Test year for the right-hand batsman, who took aggregated1172 runs in eight Tests in 2015, the highest by a New Zealander. Williamson has scored five Test centuries this year, joint-highest with Steven Smith. He started the year with an unbeaten 242 in the second Test against Sri Lanka in Wellington. A knock that helped New Zealand win by 193 runs.
A fighting 132 in the first Test against England at Lord's was followed by consecutive centuries against Australia in Brisband and Perth. Williamson capped off the century list with an unbeaten 108 against Sri Lanka in Hamilton.
In 26 One-Day Internationals, Williamson has scored 1317 runs at 57.26 with three centuries and eight half-centuries. In four Twenty20 International matches, he has scored 144 runs at an average of 36.
His three ODI centuries, came against Sri Lanka (103 in Nelson), Pakistan (112 in Napier) and England (118 in Southampton).
In nine ICC World Cup 2015 matches, Williamson scored 234 runs at 33.42, including an unbeaten 45, where he smashed the winning six as New Zealand won a thriller against Australia at Eden Park by just one wicket.