Japan beat Italy 27-10 in Tokyo. Ireland edged Australia 33-31 in a finish nobody called cleanly. South Africa put 45 past England at Ellis Park, made 10 changes the following week, and still beat Scotland.
Fiji played three home games in Cardiff, Liverpool, and Edinburgh and lost them all. England then put 73 points on Fiji at a football ground hosting its first rugby match. Two rounds into the inaugural Nations Championship, the results are already forcing bookmakers to recalibrate. The Six Nations gives oddsmakers five rounds of familiar matchups on familiar grounds with decades of data behind every price. The Nations Championship gives them none of that. And the early evidence suggests this is going to be a very different kind of betting market.
Every betting market relies on historical data, and the Nations Championship has precisely none. The competition launched on 4 July 2026 as the first biennial cross-hemisphere rugby league ever staged. Twelve teams split into two conferences - the Six Nations sides forming the Northern pool, the four Rugby Championship nations plus Fiji and Japan forming the Southern pool — play every team from the opposite conference across July and November windows before a Finals Weekend at Twickenham in late November.
The Six Nations have more than a century of Home Nations history and 25 years of data since Italy joined. Bookmakers have built refined models around home advantage patterns, round-by-round form curves, and venue-specific trends that barely shift from year to year. None of that infrastructure exists for the Nations Championship. Cross-hemisphere Test matches have historically been limited to summer tours and November internationals, often played with rotated squads and inconsistent intensity. Those fixtures never carried league points, conference standings, or a finals pathway. Now they do, and bookmakers opened the tournament pricing South Africa as favourites based largely on World Rugby rankings and recent form. Rankings were designed to compare teams globally, not to predict outcomes in a structured cross-hemisphere league. Two rounds in, the difference between those two things is already showing.
The most familiar pricing assumptions in rugby betting fall apart when applied to the Nations Championship format. Squad rotation is the clearest example. South Africa made 10 changes between their Round 1 win over England and the Scotland match a week later, then named four uncapped players for the Wales fixture. That level of turnover is standard operating procedure for Rassie Erasmus, but it makes form lines from one week to the next almost meaningless for pricing purposes. The team that beat England at Ellis Park and the team that faced Scotland in Pretoria shared barely half their starting XVs. A bookmaker pricing the Scotland match based on the England result was pricing a different team.
Venue displacement adds another layer that has no Six Nations equivalent. Fiji were required to play all three of its home fixtures in the United Kingdom because its national stadium in Suva does not meet competition requirements. Chairman John Sanday described the arrangement as a "transformational" revenue opportunity, and financially, it may well be. On the field, playing home games 16,000 kilometres from home in football stadiums produced three defeats and a combined scoreline that does not flatter Fiji. How you price a home team that is not at home is a question bookmakers have rarely had to answer in international rugby.
Travel and altitude compound the challenge. Northern hemisphere sides played in Johannesburg at 1,753 metres, Buenos Aires, and across multiple time zones in consecutive weekends. The July window compresses three away Tests into three weeks against unfamiliar opponents in unfamiliar conditions. And on the exact day the tournament kicked off, World Rugby removed the home-advantage weighting from its rankings calculations, altering the context in which every result is measured. The familiar inputs are not just absent. The framework itself is shifting underneath the competition in real time.
The opening rounds produced a spread from two-point margins to 65-point blowouts within the same competition, sometimes involving the same teams from week to week with dramatically different squads. Japan's 27-10 win over Italy in Tokyo was a result few models would have strongly favoured. Ireland's two-point survival against Australia underlined how difficult cross-hemisphere matchups are to price when the teams last met competitively months or years ago. England's 73-8 demolition of Fiji in Liverpool - 11 tries at Everton's new Hill Dickinson Stadium - produced a scoreline that no historical dataset would have confidently generated. And New Zealand's 34-32 win over France in Christchurch showed that even the competition's strongest teams are operating on margins that make accurate handicap pricing extremely difficult.
For anyone trying to build a model around these fixtures, the variance is the story. The Nations Championship is not behaving like a Six Nations with more teams. It is behaving like something genuinely new. The patterns that will eventually emerge, which teams travel well, which struggle with rotation, which matchups produce consistent margins, simply do not exist yet. The models need time, and time is the one thing a live betting market does not have.
The range of available odds may also look broader than it really is. Several betting brands can belong to the same operator, use related trading systems, or respond to the same market data. The research involved in finding a casino's sister sites applies a similar principle: identifying shared ownership can show when apparently separate platforms are more closely connected than their branding suggests. Bettors comparing Nations Championship prices should therefore consider who sets the odds, not merely how many different websites display them.
If the July fixtures were supposed to establish a baseline, the November window will immediately disrupt it. The roles reverse entirely: Southern Hemisphere teams travel north, the home advantage shifts to the opposite conference, altitude disappears, and the travel fatigue changes hemispheres. A team that dominated at home in July may look completely different playing away four months later. For bookmakers, the pricing challenge does not resolve in November. It restarts from the other direction.
The Finals Weekend at Twickenham adds yet another layer. The competition concludes over three days from 27 to 29 November, with each team matched against its equivalent-ranked opponent from the other conference. The Grand Final carries a format with zero historical precedent in international rugby: if the match is drawn after 80 minutes, two 10-minute halves of Golden Point extra time follow. If nobody scores in those 20 minutes, the inaugural champion is decided by a place-kick shootout. Nobody, not the players, not the coaches, not the bookmakers, has priced a competitive Test match that could be decided by a kicking contest. There is no data to draw on because it has never happened.
The Nations Championship runs biennially in even-numbered years, and the first two editions carry no promotion or relegation. The 2028 edition will be the first where bookmakers and bettors have any prior tournament data at all. Until then, every market is a best guess built on incomplete information. For bookmakers, this is a calibration period, a two-edition laboratory in which to build the models that will eventually make these fixtures as priceable as a Six Nations weekend in February.
For bettors, that calibration period is exactly where value lives. When the models are uncertain, the odds are least efficient. When bookmakers are guessing, the margin of error in their pricing widens. The smartest rugby bettors are paying close attention to the Nations Championship right now, not because the answers are clear, but precisely because they are not.
Uncertainty does not automatically make a market profitable. Wider pricing errors can create opportunities, but they can just as easily expose bettors to results that no available model predicted. Responsible gambling in a new competition means treating wagers as entertainment, setting a fixed limit in advance, and avoiding larger stakes simply because the bookmakers appear uncertain.
The Six Nations is a market bookmakers have spent decades learning to read. The Nations Championship is a market nobody has read before. Two rounds in, the only thing the odds are telling us with any certainty is that they do not yet know enough to be certain about anything. And for a competition trying to establish itself as rugby's most ambitious project, that unpredictability might be the most compelling thing about it.