The All Blacks Sevens have relinquished the lead in the IRB Sevens World Series standings, finishing fourth at the Japan Sevens in Tokyo.
New Zealand lost 17-12 to eventual winners Fiji in the semis before falling 21-12 to England in the third-fourth playoff.
Captain DJ Forbes said they made too many mistakes in their last two outings.
"As soon as we start slipping away from the basics, dropping balls, just doing uncharacteristic things, that's when we put pressure on ourselves and we let other teams get into the games.''
Forbes said they conceded too many penalties in their final game to mount a challenge.