England had wrapped up the first Test at Christchurch by an innings, with Hammond making 227. At Eden Park, on a flat pitch and against a New Zealand attack that had only had Test status since 1929-30, he produced what Wisden later called 'the most explosive triple-century the game had then seen.' Coming in at first drop, he reached 100 in 134 minutes, 200 in 241 minutes and 300 in 287 minutes. The 336 itself came in 318 minutes — a strike rate that would still look brisk in T20.
The innings included 34 fours and 10 sixes — three of the sixes hit off consecutive balls from Jack Newman. Until that day the record for sixes in a Test innings was four. Hammond's 336 was made out of a team total of 548 for 7 declared. England did not enforce the follow-on; bad weather then washed out the rest of the match for a draw.
The innings broke Bradman's 334 (Headingley 1930) as the highest score in Test cricket. It would stand five years until Len Hutton's 364 at The Oval in 1938. Crucially, Hammond batted only twice in the entire two-match series — 227 and 336* — and finished with a series average of 563, which is still the record series average for any batter in Test history.
For New Zealand the match was a chastening reminder that Test status did not guarantee competitive Tests. They had granted England a generous schedule on slow pitches and got Hammond at the height of his powers. For Hammond, the innings cemented him as the senior batter in world cricket alongside Bradman, a position he would hold until 1938.