Davids used his pace to go through a gap and crash over, but Leyds’ try was especially memorable, as it came from a counter-attack that started from a turn-over ball on the Blitzboks’ tryline after some sublime defence.
New Zealand hit back two minutes after the buzzer with a try by Moses Leo, with Andrew Knewstubb adding the conversion to make it 14-7 at the break.
The second half saw wave after wave of NZ attack, but the Blitzboks’ defence held firm as they tackled like terriers, often forcing mistakes from the Kiwis which handed possession back to South Africa, who sealed the deal with one of their best performances of the season.
The Blitzboks will now face France in the semi-final, with kick-off scheduled for 15:30 on Saturday afternoon.
Earlier on Thursday, South Africa smashed Japan by 49-5 to sneak into the quarter-finals. The Springbok Sevens team had a 35-0 lead at the break in their final Pool A match, scoring five tries in the first half and adding two more after the break.
The Blitzboks, who had to replace the injured Quewin Nortje with Ronald Brown on the second day, knew they had to win by at least 21 points to make into the final eight and did just that. They were ruthless in the opening half and scored almost at will, dominating the restarts, possession and territory.
Japan launched a mini-comeback early in the second half, scoring their only try of the match, but that did not stop the Blitzboks from scoring two more tries.
Rosko Specman, who scored one of the tries, said afterwards that they did what was needed and are still in the hunt for a podium finish.
“Coach Philip (Snyman) asked us one thing in the change room and that was to get the joy back of playing for this team, the same joy we displayed in Monaco,” said Specman. “We had some ball to play with and it was joy all over. We are still in the tournament and that is a huge boost of confidence.”
Scorers:
South Africa 47 (35), Japan 5 (0)
SA – Tries: Zain Davids, Impi Visser, Ryan Oosthuizen (2), Rosko Specman, Shilton van Wyk (2).
Conversions: Ronald Brown (2), Tristan Leyds (5).
Japan – Try: Kazuma Ueda.
South Africa 14 (14) New Zealand 7 (7)
SA – Tries: Selvyn Davids, Tristan Leyds. Conversions: Leyds (2).
NZ – Try: Moses Leo. Conversion: Andrew Knewstubb.