Brendon McCullum put his record-breaking year down to a change of attitude, as he finished 2014 with another man-of-the-match award.
McCullum's 195 in the first Test against Sri Lanka in Christchurch helped New Zealand set-up an eight-wicket victory on Monday.
The 33-year-old compiled most of his 1164 runs this year in the first and last two Tests, as he compiled knocks of 224 and 302 against India in February, and also struck 202 against Pakistan in Sharjah in November.
He became the first New Zealander to surpass 1000 Test runs in a calendar year when he hit opposing skipper Angelo Mathews for six on day one.
McCullum's triple-century in Wellington was the first by a Kiwi, eclipsing the previous best innings by a New Zealander of 299 by Martin Crowe.
He only surpassed 50 four times in the year, and he fell just shy of converting each half-century to at least a double-century at Hagley Oval.
McCullum said he wanted to improve his image on the international scene, and said he helped himself by agreeing to work on some "weaknesses".
"It's amazing what you can achieve when you try to let go a little bit," the captain said post-match.
"I'm sort of at that point in my career where every game you play is a bit of a bonus.
"I wasn't happy where I sat in international cricket probably 12, 18 months ago, and I set about trying to rectify that.
"I worked on some weaknesses which I was probably a little loathe to do for the majority of my career, and that's given me a bit more confidence.
"Couple that with the attitude where every game could be your last... it's quite nice to be able to just go out there and play with that freedom.
"[I'm] obviously trying to be part of a team which is on the up. I'm pretty lucky to be able to have the batting quality that I've got around me as well.
"It's been a good year, but I'm more focussed on how we're going as a group. And I think we're treading in the right direction."
McCullum said his bowlers set up the commanding victory in the first Test played at Hagley Oval, when they bowled Sri Lanka out for 138 inside 43 overs in the first innings.
"I think it's our fifth Test win of the year which is something we're obviously really proud of being able to achieve," he said.
"I think, all round, it was a really good performance, especially after losing the toss and having to bat.
"Our seamers were, once again, outstanding... and to bowl them out for 130-odd in the first innings is, for me, the winning of the game."