Williamson plays it cool after 10-wicket win

New Zealand T20 skipper Kane Williamson isn't getting carried away with Sunday's record-breaking 10-wicket win against Pakistan in Hamilton.

He admits it's satisfying to get back into winning mode after Friday's 16-run loss at Eden Park in the first of the three-match series. 

And to win so emphatically was particularly pleasing, Williamson and Martin Guptill eclipsing the T20 partnership world record in steering the Black Caps to 0-171 off 17.4 overs in overhauling Pakistan's 7-168. 

But Williamson recognises how quickly the abbreviated version of the game can change, and says the Black Caps will need to refocus quickly for the series decider in Wellington on Friday. 

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Martin Guptill plays a full-blooded cut shot in his innings of 87 not out against Pakistan // Getty

"Twenty20 cricket is fickle - you can win by a lot against anyone, and you can lose by a lot against anyone," he said. 

"We want to play our game plan as best we can, and as consistently as we can. At Eden Park, it wasn't our best performance, but it wasn't our worst. 

"It looked great winning by 10 wickets, but we're certainly not resting on anything. We want to keep improving as a team." 

Guptill (87 not out) and Williamson's (72no) unbroken stand, the best for any nation and for any wicket in the history of T20 internationals, stole the limelight at Seddon Park.

The partnership usurped the 170 shared by South African openers Graeme Smith and Loots Bosman against England at Centurion in 2009. 

But Williamson also paid tribute to an improved bowling effort, kickstarted by the surprise new-ball combination of allrounders Corey Anderson (1-26) and Mitchell Santner (1-29), and also starring recalled seamer Mitchell McClenaghan (2-23). 

Anderson's figures after three overs stood at a parsimonious 1-12 but were blown out when he conceded 14 off his final over. 

However, he continues to improve in an earlier-than-scheduled return from a back injury, and earned special mention from his skipper. 

"Corey standing up after not having played much cricket and opening as well, it was a superb effort from him," Williamson said. 

"Part of rehab and getting back into your role is making sure you're ready to go at 100 per cent,  and he certainly showed that."