In reply to West Indies ‘A’s 322, Phillips and Seifert mounted an opening stand of 226 when the former was out caught and bowled by Hayden Walsh Jr for 136 that came from 184 balls and included 15 fours and five sixes.
Seifert and Mark Chapman then put on 80 runs together before Seifert was trapped lbw by Raymon Reifer for 111.
Chapman was the final wicket to fall on the day, caught by Romario Shepherd from the bowling of Nicholas Pooran, who had figured of 1 for 3 from the only over he bowled.
Walsh returned figures of 1 for 47 while Reifer took 1 for 34.
The match was called off after just 14 balls due to heavy rain. West Indies were asked to bat first and reached 25-1 off 2.2 overs at Mount Maunganui.
Brandon King hit a four and a six but fell for 11 off seven balls. At the break Andre Fletcher was on four not out and Kyle Mayers unbeaten on five.
The abandonment of the match meant New Zealand won the series 2-0 following their wins by five wickets in the first match at Eden Park on Friday night and by 72 runs in the second contest at the Bay Oval on Sunday afternoon.
The two teams will now travel to Hamilton for the first Test match at Seddon Park starting on Thursday (Wednesday 6pm Eastern Caribbean Time/5pm Jamaica Time).
The 26-year-old Shepherd scored 133 while mounting a 199-run eighth wicket partnership with Reifer that hauled the West Indies back from a precarious 113 for 7. Reifer scored a patient 65 that along with Nicholas Pooran’s 46 in the top order, took the West Indies to 322 all out.
At the close, New Zealand A were 10 without loss.
The West Indies were in trouble early losing the wickets of Brandon King and Shayne Moseley for 3 and two, respectively as the Caribbean men slumped to 13 for 2 in the fifth over.
Pooran and Rovman Powell put together a 66-run third-wicket partnership as the West Indies set about repairing the early damage but Nathan Smith took the first of his three wickets when he had Powell caught behind for 27, triggering another collapse.
With the fall of Powell’s wicket, the West Indies were 79 for 3, which soon became 79 for 4 as Smith had Kyle Myer out caught without scoring. Smith claimed his third wicket when he had Pooran caught by Joe Carter to make it 88 for 5.
Smith finished with 3 for 37.
Joshua DaSilva had made only 2 when Scott Kuggeelejin had him caught behind and the West Indies were further in the rut at 88 for 6.
Jacob Duffy, who had earlier claimed Moseley’s wicket, returned to dismiss Fabian Allen for 19 leaving the West Indies were in dire straits at 113 for 7, before Shepherd and Reifer launched their counter-offensive.
The pair put on 50 runs in just 67 balls while the 100-run partnership came up in 166 balls and 118 minutes as the West Indies crossed the 200-run mark.
Reifer’s patient 50 was made off 132 balls after being at the crease for more than three hours.
By contrast, Shepherd’s maiden 100 came off just 135 balls in 186 minutes.
Together, they took the score to 312 when Duffy had Reifer caught behind for 65.
Duffy got the wickets Hayden Walsh for 8 and Shepherd, who was last out for 133, to finish with figures of 4 for 47.
