WORLD RANKINGS: Scotland overtake Boks again
WORLD RANKINGS: Scotland overtake Boks againSHARE
As he has done so many times before, Greig Laidlaw stepped up to kick the last-gasp penalty that spared the Scots from defeat at the Stadio Olimpico in Rome, Gregor Townsend's side emerging with the tensest of 29-27 victories.
The three-hundredth of a point on offer for their first away win of the season took Scotland above South Africa and into fifth, the position they were at the start of the Championship. Italy are also unchanged over the duration of the competition, in 12th place, but with 71.10 points instead of 71.25.
Having wrapped up the Grand Slam with a famous St Patrick's Day victory over England at Twickenham, second place belongs to Ireland until at least the June international window. As well as moving above England en route to the title, the five straight wins have boosted Ireland's score to 89.11 leaving them 4.88 points adrift of the world's number one team New Zealand.
Had it not been for Elliot Daly's second try and a late effort from Jonny May, the 15-24 scoreline against England would have been far worse. A loss by 16 points or more would have taken them to within 11-hundredths of a point of Australia in fourth. As things stand now, that cushion is still only a fraction under three-quarters of a point.
In finishing fifth in the Six Nations table, their worst performance in over the last two decades, England have slipped from second to third in the rankings and have lost 4.64 points since the competition began on February 3.
Wales end the Six Nations where they started it, in seventh place but with 83.41 points compared to 82.08, while France, who they beat 14-13 at the Principality Stadium on Saturday, rose one place to eighth, mainly thanks to their win over England in Round Four.
Not many points were on offer for Georgia in the Rugby Europe Championship as they are by far and away the highest-ranked team in the competition, but they did accrue 0.16 of a point for Sunday's 25-16, title-clinching victory against Romania. They remain in 12th place – five ahead of Romania, who celebrated qualification for RWC 2019 on the same day they lost the title to the Lelos.
Spain's disappointing 18-10 defeat to Belgium handed the Oaks the Europe One ticket to Japan as well as costing them one place in the rankings. Los Leones drop to 20th with Russia, 57-3 winners away to Germany, replacing them in 19th.
Belgium's first win over Spain in a dozen years and only their second ever was worth one and a half points but that was still not enough to lift them any higher than 25th.