New Zealand came through a low-scoring contest with the United States on Sunday to claim the last semi-final berth in the Rio 2016 women's rugby sevens competition.
A solitary try from Portia Woodman proved enough for New Zealand as they prevailed 5-0 against a USA team that had earlier come agonisingly close to beating Australia in the pool stage.
Emma Tonegato's late score rescued a 12-12 draw in that match and Australia - the winners of Pool A - went on to beat Spain 24-0 to reach the last four.
Next up for Tim Walsh's team is a last-four meeting with Canada, who finished second to Great Britain in Pool C, before coming from behind to beat France 15-5.
Britain maintained their perfect record with a 26-7 last-eight triumph over Fiji, Abbie Brown crossing twice, and will face New Zealand on Monday for a place in the gold medal match.
In four matches to date, Britain have conceded just 10 points.
TRY OF THE DAY
Few sevens matches are decided by a solitary score, but Woodman's try at the end of the first half in New Zealand's meeting with the USA proved as crucial an effort as any on Sunday.
QUOTES OF THE DAY
"It's almost a monkey off the back. In any tournament the quarter-final is always the big one, but now we're playing for a medal. And we're not happy with a bronze or a silver," - Australia coach Walsh is gunning for gold.
"In Fiji, traditionally we don't eat the right things at the right times. It would be good if we could get some outside help to come in and teach us a few basics about those sorts of things and change our attitudes - Fiji's Rebecca Tavo.
The first Olympic champions in rugby sevens will be crowned on Monday, with the final scheduled for 7pm local time (11pm BST). The two semi-finals will take place at 2:30pm and 3pm respectively.