Long-range strikes from Frans Steyn and an intercept try by Jean de Villiers helped South Africa to a 32-29 victory over New Zealand in Hamilton yesterday and win their first Tri-Nations title since 2004.
South Africa, who had needed only one point to win the title, have 21 points. The All Blacks (nine) meet Australia (seven) in the final match in Wellington next weekend when the loser will get the wooden spoon.
Steyn slotted three penalties from inside his own territory for the Springboks, who took advantage of countless All Blacks' errors at a sold-out Waikato Stadium.
Time and again the All Blacks dropped the ball from high kicks, or made line breaks and then knocked the ball forward to release any pressure they had been building up.
South Africa full-back Steyn emphatically warned the All Blacks of the dangers of testing referee Nigel Owens's rule interpretations when he converted the first of his three first-half, long-range penalties from 60 metres.
Morne Steyn added a short-range penalty when Kieran Read was penalised for a shoulder charge on Bryan Habana before Daniel Carter took his fourth penalty shortly before the break.
Carter turned villain in the 49th minute when he passed the ball directly to inside centre De Villiers who cantered away from 45 metres out.
All Blacks' replacement centre Isaia Toeava made a break shortly after coming on and fed Sitiveni Sivivatu who crashed over in the tackle of Schalk Burger.
Carter added the conversion and then a penalty with 15 minutes remaining, before Morne Steyn pushed the margin back to 10 points with his second penalty.
The All Blacks threw everything at the Springboks in the final five minutes with Richie McCaw catching a cross kick from Carter and scoring in the corner.
Carter added the sideline conversion to give the home crowd hope of an improbable victory.
Carter repeated the cross-kick tactic after the hooter had gone, though the ball drifted just over lock Isaac Ross's outstretched hands and into touch, ending the All Blacks' four-year stranglehold on the title.