Otago's beaten Canterbury by six wickets late on the the final day of their rain-delayed Plunket Shield cricket match at Rangiora.
In reply to Canterbury's first innings of 420 for nine Otago declared on 300 for five, then dismisssed the home side for just 61.
The Volts reached their target of 182 comfortably thanks to a 95 run partnership between Neil Broom and Nathan McCullum.
Central Districts' second innings ended 377 for four in Napier with former Black Cap Jamie How unbeaten in 187 but first innings points went to Wellington.
Auckland needed only three days to beat Northern Districts by 19 runs in Whagarei.