It left Mitchell's record buried as a footnote - a consequence it most certainly did not deserve.
With his fourth test century Mitchell joined Sir Donald Bradman in becoming the only visiting batters to score centuries in the first three tests of a series in England.
He also became the fifth New Zealander, after Mark Burgess (1969-72), Ross Taylor (2013), Tom Latham (2018-19) and Kane Williamson (2020-21), to score tons in three successive tests. Mitchell's the only one to complete the trifecta overseas.
Furthermore, his 482 runs is the highest aggregate by a New Zealander in a tour against England, topping Martin Donnelly's 462 in 1949.
Finally, his sixth-wicket partnership of 120 with Tom Blundell also marked the first time the same pair of New Zealanders have made century partnerships in three consecutive tests, after their efforts at Lord's and Trent Bridge.
However, Mitchell's incredible form has come during a series in which the rest of his teammates have largely failed to fire, leaving the team winless so far. It's a fact he'd like to change.
"It'd be nice," he told AFP. "That's why you play the game, to win Test matches for your country."
- with Andrew Alderson, NZ Herald