“I’m not really sure where it came from,” he said. “I’ve had a little bit of cricket under my belt recently with domestic cricket, a few four-dayers and a one-dayer on Tuesday.
“So the preparation’s been nice and I feel I’ve been hitting the ball reasonably well.”
The 30-year-old has found form for Canterbury, last month scoring centuries of 167 and 143no in consecutive Plunket Shield matches before making 59 in this week’s Ford Trophy clash against Wellington.
But there was still scant indication of what was to come against an Indian side confident following a 1-0 T20 series victory.
When Latham arrived at the crease with the Black Caps on 88-3 in the 20th over, the required run rate was already at 7.3. He and Kane Williamson (94no off 98) then put together a new fourth-wicket stand for New Zealand, compiling 221 from 165 deliveries to see their side home with 17 balls to spare.
Latham was the senior partner in that unbroken stand. He plundered 66 per cent of the runs while cracking five sixes and 19 fours, flourishing particularly behind square.
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The Black Caps still needed 91 runs when the 40th over began, but the balance of the match was thrown askew as Latham scored 23 runs off Shardul Thakur.
“It was just how it unfolded,” he said of the decisive over. “I started the over with a six so I was just trying to react, and he bowled a little bit straight to that shorter boundary [behind the wicket]. I was just trying to play good shots to the balls and it unfolded naturally.”
It was certainly timely, with the Black Caps shorn of two players in their top 25 of ODI appearances. Williamson (156) and Latham (115) are also on that list, proving there remains plenty of experience in their ranks.
“Building a partnership with Kane was really important,” Latham said. “We were under a little bit of pressure to take things deep.
“You lean back on experiences from games you’ve played in different conditions. [Friday] was one of those times when you were in a position to try and see the game through and be there at the end. It was certainly pleasing.”