As the ongoing FIFA World Cup 2026 has captured the attention of football fans around the globe, the tournament’s expansion to 48 teams has continued to spark debate among supporters, pundits and former players. Critics have long argued that increasing the number of participants could dilute the quality of the competition and lead to more one-sided matches in the group stage.
Prominent critics include José Mourinho and Carlos Queiroz. Queiroz has warned that expanding the World Cup risks turning it into a “vulgar, ordinary competition” and diminishing the exclusivity that has long made it football’s biggest prize.
Real Madrid boss José Mourinho has voiced similar concerns. “I don’t like the feeling,” Mourinho said. “For me, the World Cup is the top of the top.”
“It’s not possible, 7-1. It’s not possible, 5-1,” he added, referring to one-sided games in the group stage.
But do the numbers support those concerns?
To find out, we analyzed every FIFA World Cup group-stage match from 1982 to 2026, examining four measures of competitiveness: average winning margins, the share of close games, the frequency of one-sided contests and teams’ final goal differences. The findings reveal how group-stage competitiveness has evolved over the past four decades and whether the 48-team format has changed the balance of the world’s biggest football tournament.
Average Winning Margin Reaches Highest Level Since 1982
Our first measure of competitiveness was the average winning margin in group-stage matches, with draws counted as a margin of zero. We calculated this metric for every FIFA World Cup from 1982 onward.
Before the ongoing tournament, the highest average winning margin was 1.50 goals in 1982. Since then, it had remained remarkably stable, ranging from 1.19 goals in 2010 to 1.48 goals in 2006. Notably, FIFA’s expansion from 24 to 32 teams in 1998 did not result in more one-sided matches. In fact, the average winning margin fell from 1.42 goals in 1994 to 1.29 goals in 1998.
The pattern has been very different at the ongoing 2026 World Cup. The average winning margin in the group stage has risen to 1.65 goals, the highest recorded since the 1982 edition. That represents a 20.4% increase compared with the 2022 tournament and is 10% higher than the previous peak set in 1982, suggesting that group-stage matches have become significantly less competitive following the latest expansion to 48 teams.
Share of Close Games Falls to 51.9%
Like the average winning margin, this metric remained relatively stable between 1982 and 2022, with no clear long-term trend. The two notable exceptions were the 2006 and 2010 World Cups. In 2006, just 54.2% of group-stage matches were close encounters, making it one of the least competitive tournaments before 2026. Four years later, that figure jumped to 72.9%, the highest on record, meaning nearly three in every four group-stage matches ended in a draw or were decided by a single goal.
Once again, the expansion from 24 to 32 teams in 1998 showed no evidence of reducing competitiveness. In fact, the share of close games increased from 63.9% in 1994 to 68.8% in 1998.
The ongoing 2026 World Cup has told a different story. Just 51.9% of group-stage matches have been close encounters, the lowest proportion recorded since 1982 and a sharp decline from 62.5% at the 2022 World Cup.
27.3% of Games Were Decided by Three or More Goals
Our third metric was the proportion of group-stage matches decided by a margin of three or more goals, which we classified as one-sided contests.
Before the 2026 World Cup, the highest share of one-sided matches came in 1982, when 25% of group-stage games were won by three or more goals. Between 1986 and 2022, that figure fluctuated between 10.4% in 2010 and 2022 and 20.8% in 2014, with no sustained upward trend.
The 2026 World Cup has marked a clear departure from that pattern. A total of 27.3% of group-stage matches were decided by at least three goals, the highest proportion recorded since 1982. Compared with the previous tournament, the share of one-sided games more than doubled from 10.4% to 27.3%.
Eight Teams Finished With a Goal Difference of Minus-5 or Worse
Our final measure of competitiveness was each team’s goal difference at the end of the group stage. At the 2026 World Cup, eight teams finished with a goal difference of minus-5 or worse, including two with a goal difference of minus-10 or worse.
Before 2026, the highest number of teams to record a goal difference of minus-5 or worse was five at the 2006 World Cup, while no team finished with a goal difference of minus-10 or worse that year. The previous tournament to feature a team with a goal difference of minus-10 or worse was 2010, when North Korea ended the group stage at minus-11. However, it was the only team to finish with a goal difference of minus-5 or worse in that tournament.
In fact, the only previous World Cup between 1982 and 2022 to produce more than one team with a goal difference of minus-10 or worse was the 1982 edition.
The 2026 World Cup therefore set two unwanted records: the highest number of teams finishing with a goal difference of minus-5 or worse and the highest number finishing with a goal difference of minus-10 or worse since 1982.
What Have We Learned?
- The 48-team expansion has coincided with a clear drop in competitiveness. The 2026 World Cup is the first edition in more than four decades to show a consistent decline in group-stage competitiveness across every metric we analyzed. Interestingly, FIFA’s previous expansion from 24 to 32 teams in 1998 had no such effect. In fact, several competitiveness indicators either remained stable or improved in 1998, suggesting that the latest expansion has had a far greater impact on the balance between competing nations.
- Average winning margins reached a 44-year high. The average winning margin climbed to 1.65 goals, the highest at any World Cup since 1982. Before 2026, the metric had remained remarkably stable despite fluctuations in tournament formats and playing styles. The sharp increase in 2026 points to a greater gulf in quality between teams during the group stage.
- Close contests became rarer while one-sided games surged. Just 51.9% of group-stage matches ended in a draw or were decided by a single goal, the lowest proportion recorded since 1982. At the same time, 27.3% of matches were decided by three or more goals, the highest share over the same period. Together, these two metrics suggest that competitive, closely fought matches became significantly less common at the first 48-team World Cup.
- More teams struggled to compete. A record eight teams finished the group stage with a goal difference of minus-5 or worse, including two with a goal difference of minus-10 or worse. No previous World Cup in the past four decades had produced as many heavily beaten teams. This reinforces the view that the gap between football’s strongest and weakest nations was more pronounced than in previous editions.
Overall, the data provides strong evidence that the 2026 World Cup group stage was less competitive than any edition since 1982. Whether this proves to be a one-off consequence of expansion or the beginning of a long-term trend will become clear only at future World Cups.
Vyom Chaudhary is a football data journalist and digital PR specialist with more than a decade of experience covering the global game. His work combines statistical analysis, data storytelling and original research, with studies featured by leading international publications, including Reuters, Bloomberg, The Guardian, BBC, The Times and ESPN. A former head of football content and marketing at RunRepeat, Vyom has produced data-driven features on topics ranging from World Cup trends and player performance to football economics and fan culture.
This article first appeared here: https://rg.org/en-ca/research/sports-data-analysis/2026-world-cup-least-competitive-group-stage-since-1982
