This year’s World Cup is set to be the largest in history, featuring 48 teams, an increase from the previous 32. This expansion is anticipated to lead to more unexpected outcomes and thrilling moments. Historically, the World Cup has seen remarkable underdog achievements, beginning with the USA’s surprising win over the favored England team in 1950. But what insights can we gain from the data regarding upsets in contemporary football?
Since the introduction of FIFA’s men’s world ranking system in 1993, we have examined every World Cup match where an underdog triumphed over a higher-ranked opponent. The analysis includes the difference in rankings between the teams, where a larger gap signifies a higher “upset score,” represented by bigger circles in the accompanying graphics. Matches identified as upsets are highlighted in red, while those decided by penalties have a white border.
This World Cup has been marked by a notable number of upsets, particularly during the group stages. Some of the surprising outcomes included Belgium, ranked 27th, defeating the Netherlands, ranked 2nd, and Saudi Arabia, ranked 34th, achieving a victory over Morocco, ranked 28th, in their inaugural World Cup appearance.
The first World Cup following the breakup of the USSR showcased a unified German team and featured one of the most memorable underdog stories when Bulgaria, ranked 29th, defeated top-ranked Germany 1-0 in the quarter-finals thanks to a header from Yordan Letchkov. Bulgaria also had a standout tournament, managing to beat Argentina, ranked 8th, in the group stages and winning against Mexico, ranked 16th, in a penalty shootout during the round of 16.
Another significant underdog victory took place when the host nation, France, ranked 17th, celebrated a stunning 3-0 win over the top team, Brazil, during the final. Zinedine Zidane’s two remarkable headers led France to this historic triumph.
The most astonishing upset was delivered by Nigeria, ranked 74th, who defeated Spain, ranked 15th, 3-2 in the group stages, in addition to overcoming Bulgaria, ranked 35th, with a 1-0 score. The quarter-finals also brought about unexpected results, with Croatia, ranked 19th, eliminating Germany, ranked 2nd, and the Netherlands, ranked 25th, defeating Argentina, ranked 6th.
South Korea, ranked 40th, emerged as the standout underdog of the tournament, reaching the semi-finals after victories against Poland, ranked 38th, Portugal, ranked 5th, Italy, ranked 6th, and Spain, ranked 8th. The opening match produced an unforgettable upset when first-time participants Senegal, ranked 32nd, faced reigning champions France, ranked 3rd. Senegal scored early and managed to maintain their lead against a seasoned French side, creating shock and jubilation back home in Dakar as they triumphed over their former colonial ruler.
The 2006 World Cup is also remembered for more than just Zinedine Zidane’s infamous headbutt on Marco Materazzi in the final between France, ranked 8th, and Italy, ranked 13th. Statistical analysis reveals it was the most surprising World Cup in recent history, featuring 21 upsets, including five in the knockout rounds. Ukraine, ranked 45th, made a remarkable debut with a round-of-16 win over Switzerland, ranked 35th. Other first-time participants included Angola, ranked 57th, Ghana, ranked 48th, Côte d’Ivoire, ranked 32nd, Trinidad and Tobago, ranked 47th, and Togo, ranked 61st, contributing to a tournament rich in underdog narratives.
Despite achieving the highest upset score by defeating France, ranked 9th, South Africa, ranked 83rd, became the first host nation in World Cup history to be eliminated in the group stage. Other noteworthy underdog victories included South Korea’s win over Greece, ranked 13th, and Slovakia’s defeat of Italy, ranked 5th, with both France and Italy failing to advance to the knockout rounds. North Korea, ranked 103rd, suffered a defeat in all three of their group matches and faced backlash for not fulfilling the expectations tied to their ideological stance.
The 2014 World Cup was marked by unexpected developments, including the early exit of the reigning champions, Spain, ranked 1st, from the group stage, and Brazil, ranked 3rd, suffering a shocking 7-1 loss to Germany, ranked 2nd, in the semi-finals. Group D, deemed the “group of death,” featured three former world champions—England, ranked 10th, Italy, ranked 9th, and Uruguay, ranked 7th—alongside Costa Rica, ranked 28th. The underdogs made their mark, with Costa Rica defeating Italy 1-0 thanks to a header from Bryan Ruiz, followed by a draw against England, allowing them to progress to the knockout stage while Italy and England were eliminated.
This World Cup has been a whirlwind of excitement, beginning with disputes over the selection of the host, continuing with reports of migrant labor abuse during stadium construction, and culminating in a tournament filled with unpredictability and surprises. Russia, ranked 70th, benefitted from the host advantage, defeating Spain, ranked 10th, in the round of 16 after wins against Saudi Arabia, ranked 67th, and Egypt, ranked 45th, in the group stages. The semi-finals also featured surprises, with Croatia, ranked 20th, eliminating an inexperienced England team, ranked 12th, and France, ranked 7th, denying Belgium, ranked 3rd, from claiming a major trophy.
The inaugural World Cup in the Middle East was rescheduled to the winter months to avoid Qatar’s extreme summer temperatures. Amid disruptions to domestic leagues and controversies regarding the treatment of migrant workers and minorities, one undeniable underdog story emerged: Morocco, ranked 22nd. Becoming the first African and Arab team to reach the semi-finals, Morocco achieved victories over Belgium, ranked 2nd, Canada, ranked 41st, and Portugal, ranked 9th. Their most thrilling moment came in the round of 16 against Spain, ranked 7th, where after a goalless draw, they triumphed 3-0 in the penalty shootout, sending fans into a frenzy as they advanced to the quarter-finals for the first time.
This year’s expanded tournament format has resulted in an intense match schedule spread over 16 cities across three countries and four time zones, presenting challenges of heat stress for some teams.
