Internationals Tim Southee and Kane Williamson helped Northern Districts to a 3-wicket win over Auckland for their second straight win in the domestic one-day competition.
Williams scored 92 and Southee an unbeaten 66 to guide ND to their target of 291 with 8 balls to spare.
Northern is the only team with 2 wins from 2 after Central Districts beat Wellington by 10 runs, and Canterbury beat Otago by 106 runs.