The Antarctic circumnavigation world record of 92 days is at odds with the global circumnavigation (or 21,600 nmi) world record of 41 days, despite that it is known that the winds are faster in the Southern Hemisphere. Over the last hundred or so years there have been a community of sailors who have been competing to beat records. These aren't one-off attempts and represent the best possible record.
For the world record for circumnavigation around Antarctica, Lisa Blair set it at
92 days.
In contrast, the sailing world record for circumnavigation around the globe (or 21,600 nmi) is
41 days.
In this sort or race for the "around the world sailing record", the goal wasn't necessarily to make a perfect circumference around the globe for obvious reasons, and is really the fastest time someone could sail a distance of 21,600 nautical miles. Francis Joyon and François Gabart made this path:
https://goldengloberace.com/the-route/This path takes place further northwards near the continents. The total course is 30,000 miles, but they only count the best time to 21,600 nautical miles for the specific record, since this is the circumference of the RE in RE Theory.
Not only is the Antarctic circumnavigation a shorter distance on a RE than the distance circumnavigation around a RE (or 21,600 miles), but it is known that the winds are anomalously fast in the Southern Hemisphere. A number of quotes can be found which suggest that the winds in the South are of an anomalous nature as compared to the North. They become more anomalous as you travel Southward:
See:
BBC Earthhttp://www.bbc.com/earth/story/20151009-where-is-the-windiest-place-on-earth “ There are huge belts of wind caused by the uneven way the Sun heats the Earth's surface. 30° north and south of the equator, the trade winds blow steadily. At 40° lie the prevailing westerlies, and the polar easterlies begin at around 60°.
Ask any round-the-world sailor and they will quickly tell you the stormiest seas, stirred by the strongest winds, are found in the Southern Ocean. These infamously rough latitudes are labelled the "roaring 40s", "furious 50s" and "screaming 60s". ”
One would think that higher wind speeds would help, rather than impede, Antarctic world record racers.
While nothing is really proven to a certainty by looking at these times alone, this is just another feather taken out of the cap of the Round Earth Theory that there is a mountain of evidence in its favor. When we look closer at the details we just see anomalies and that things are not really in accordance with what is generally claimed at face value.