England versus Ireland at Twickenham. France versus England in Paris. Scotland versus England at Murrayfield — always a battle, never a formality regardless of league position. The Six Nations compresses everything that's brilliant about Northern Hemisphere rugby into five weekends between February and March, and the prediction markets it generates are some of the most liquid in rugby union.
The Championship Structure
- →Grand Slam: beating all five opponents — four have been achieved since 2000
- →Triple Crown: home nations only (England, Ireland, Scotland, Wales beating each other)
- →Calcutta Cup: England vs Scotland — oldest rugby international trophy
- →Millennium Trophy: England vs Ireland — deeply contested fixture
Home Advantage in Prediction Markets
Home advantage in the Six Nations is statistically significant but not overwhelming. Ireland at the Aviva Stadiums, France at Stade de France with 80,000 creating atmospheric pressure — these are genuine factors, not sentimental ones. Prediction markets correctly price home advantage as a probability adjustment; bookmakers sometimes over-adjust based on public money flowing towards home teams.
Boromarket's outright Championship market opens in October. Ireland and France have been the most reliably priced early doors; England and Scotland are the most volatile due to media-driven swings in public sentiment.
"In the Six Nations, you're never just playing rugby. You're playing history."
— Martin Johnson