New Zealand leg-spinner Todd Astle, impressive in his debut ODI onWednesday in Whangarei against the West Indies, knows it well that intense scrutiny will make him travel the extra yard and stay a step ahead in order to remain effective.
It maintains a strong performance by New Zealand since the start of the tour, which began with them winning both tests against the tourists in comfortable fashion.
New Zealand made a decent enough start through George Worker (58) and Colin Munro (30). Worker has thrived in the absence of Martin Guptill, who is still overcoming a hamstring strain.
Boult is a bowler who can have irresistible days and even if he didn't necessarily feel that yesterday, once he got among the West Indies batsmen there was an inevitability about the way his day unfolded.
Boult grabbed his third wicket with the first ball of the fifth over, Shimron Hetmyer making only two before edging the catch to Worker at first slip.
Nicholls and Astle's powerful hitting enabled New Zealand to post 129-1 in the final 15 overs.
Boult took 7-34 in 10 overs to help the hosts bowl the Windies for just 121, chasing a mammoth target of 326.
The innings began cautiously, just a solitary wide off the first four overs.
Chris Gayle missed Saturday's second One-Day International against New Zealand with an undisclosed illness, as mystery continued to surround the marquee left-hander's health.
Shai Hope got the faintest of inside edges to Bracewell, was given out, immediately went to the DRS which confirmed a tiny spike on the screen. He was full of back foot drives and lofted shots over the infield in completing another ODI half century to go with two hundreds.
"He's recovering and he's been monitored over the last few days", said Holder.
Nicholls, meanwhile, ended up scoring a career-best 83 not out, which came off 62 and included seven boundaries and two sixes, as New Zealand finished on 325/6.
Lockie Ferguson (3-17) removed Jason Mohammed (18) and Rovman Powell (0) with consecutive deliveries before Holder (13) was also gone.
He clouted Ferguson into the vehicle park at square leg and worked the ball around impressively. That leaves West Indies thin on the fast-bowling front and they may be forced to pick the left-arm spinner Nikita Miller.