Spoiler alert: The All Blacks will win a trans-Tasman showdown in the Rugby World Cup - but only just!
Melbourne-based Kiwi maths brain Stefan Yelas - who correctly predicted the outcome of the 2003 and 2011 World Cups - is backing the men in black to secure a four-point win over the Wallabies in the final at Twickenham on November 1.
Yelas' prediction - which obviously requires the All Blacks to beat the Springboks early tomorrow in the first semifinal - is based on a maths formula he devised for a masters degree 12 years ago.
Originally he backed the All Blacks to enjoy a four-point win over England in the final, but was forced to redo his predictions after the host's stunning failure to escape pool-play.
Based on his stats, Yelas says the All Blacks have a 38 per cent chance of winning the World Cup, while the Wallabies - who smashed England 33-13 in their group and play Argentina in the second semifinal on Monday - have a 26 per cent chance of victory.