Progressive milestones of double centuries in test cricket
KS Williamson of New Zealand scored 215 against Sri Lanka in the ongoing test at Wellington to provide the 400th occasion of a batsman scoring a double century. As on date there are 401 occasions of batsman scoring double centuries in a test innings. The first ever double century was scored by WL Mudroach of Australia against England at The Oval in Aug 1884. KS Williamson achieved the landmark in 2500th test.The following table lists the progressive milestones od double centuries in test cricket in terms of fifty double centuries
| No | Player | Runs | I | Team | Opp | Ground | Start Date |
| 001 | WL Murdoch | 211 | 1 | Aus | Eng | The Oval | 11 Aug 1884 |
| 050 | EAB Rowan | 236 | 1 | SAF | Eng | Leeds | 26 Jul 1951 |
| 100 | GM Turner | 223* | 2 | NZl | Win | Kingston | 16 Feb 1972 |
| 150 | Javed Miandad | 271 | 1 | Pak | NZl | Auckland | 24 Feb 1989 |
| 200 | SR Tendulkar | 201* | 1 | Ind | Zim | Nagpur | 25 Nov 2000 |
| 250 | SR Tendulkar | 248* | 2 | Ind | Ban | Dhaka | 10 Dec 2004 |
| 300 | AN Cook | 235* | 3 | Eng | Aus | Brisbane | 25 Nov 2010 |
| 350 | AC Voges | 239 | 2 | Aus | NZl | Wellington | 12 Feb 2016 |
| 400 | KS Williamson | 215 | 1 | NZl | Srl | Wellington | 17 Mar 2023 |
| 401 | HM Nicholls | 200* | 1 | NZl | Sril | Wellington | 17 Mar 2023 |