World Cup Hydration Break Analysis Debunks Major Myth

MIGUEL ÁNGEL GARCÍA, “Marca”

The World Cup saw matches played in temperatures exceeding 30 degrees Celsius across half a dozen stadiums, leading to a recurring sight: both teams heading to the sidelines around the 23rd and 67th minutes, surrounded by bottles, towels, and makeshift tactical boards. The hydration break was introduced as a health measure, but coaches attempted to leverage it as a hidden timeout to gain an advantage. The question is whether it truly had an impact. Did these three minutes change matches, or merely interrupt them? While some intriguing preliminary analyses emerged, at Marca, we opted to await the full picture before drawing conclusions.

To answer this, we reviewed match control graphs from "Driblab" for all 104 tournament games (the "Momentum" metric seen in every World Cup match), which measure the minute-by-minute danger created by each team using the "xThreat" or "expected threat" indicator. For each break—a total of 208—we compared the five minutes before and after, extending the window to ten minutes when context demanded. Each break was categorized into one of seven types: from zero effect to a complete reversal of dominance, including strengthening the leading team's superiority, a reaction from the dominated side, or instances influenced by a nearby goal or red card.

It's fair to state upfront: most breaks didn't alter anything that wasn't already changing. However, when they coincided with a shift, that shift had a preferred, counter-intuitive direction.

The common perception is that a break offers a lifeline to a struggling team, allowing them to catch their breath, regroup, and receive instructions. However, the data tells a different story. The most frequent category in the tournament, accounting for just over a third of cases, was the reinforcement of dominance by the team already in control before the interruption. The team that entered the break in a stronger position emerged just as strong, or even stronger, in 73 out of 208 analyzed windows. Reactions from the dominated team occurred in about 16% of cases, while clear reversals of dominance were a mere 6%.

There's a nuance that supports half of the narrative. When previous dominance was exceptional—threat peaks far above normal just before the break—the interruption almost always halted it. This neutralization pattern was present in 15% of cases: the match "cooled down," and the climax didn't survive the restart. This happened to Spain against Uruguay, who reached the 23rd minute in a whirlwind (0.13 xThreat) and emerged from the break in an even match for a quarter of an hour. It also occurred with Turkey against Australia, stopped at their best moment in the 68th minute and punished with a 2-0 goal six minutes later. The same fate befell Panama against Croatia when they were closest to equalizing.

Summing up the categories, the balance is surprisingly even: the break benefited the dominant team in 36% of cases and hindered them—through a reaction, reversal, or "cooling down"—in 37%. This equilibrium explains why no sensational headline about the breaks' effect withstands data scrutiny. What does hold up, however, is the asymmetry in intensity: the reinforcement of dominance was more frequent and lasting; the reactions of the dominated were shorter and less rewarding.

The connection becomes most evident with goals. The minutes 27-31 and 72-77, immediately following each break, concentrate a share of goals that can hardly be attributed to chance: we counted approximately 25 goals in the five minutes after the restart, compared to about 15 in the five minutes prior. The USA scored to make it 1-0 against Paraguay in the 31st minute, four minutes after the first break and after accelerating their play. Norway did the same against Iraq in the 29th minute. Spain, against Belgium and Austria, converted both restarts into goals before the 36th minute.

Among these goals, two types should be distinguished. Most solidify an improvement already visible in the game's trajectory: the team emerges stronger, accumulates danger, and finishes the attack. But there's also a more troubling group—that of the immediate goal without prior improvement. The Netherlands was under pressure from Morocco for 20 minutes in the round of 16 when the break came in the 69th minute; by the 72nd, they had already scored. Ivory Coast equalized against Norway in the 74th minute, five minutes after a break that sharply cut Norway's momentum. Canada scored against Switzerland in the 76th minute, three minutes after the restart. In these cases, the break acts less as a rest and more as a circuit breaker.

The clearest example from the tournament is the semi-final between Norway and England. The English reached the first break in their strongest phase, with a peak of 0.10 xThreat between the 21st and 24th minutes. After the restart, the match turned on them: Norway produced their best spell and scored in the 37th minute. Intense dominance, interruption, and a goal-scoring reversal: the complete sequence.

The Turkey-USA match deserves a separate chapter, as the same team was disadvantaged by both breaks. After the first hydration break, Turkey transitioned from a neutral game to a fifteen-minute explosion that led to a goal in the 31st minute. After the second, however, the interruption halted the Americans' best phase of play, and the match slipped from the control of Pochettino's team.

Then came Argentina, who turned restarts into a competitive advantage. Against Austria, the break separated their weakest period from the phase where they scored to make it 1-0. In the round of 16 against Egypt, trailing 0-2 in the 67th minute, the team emerged from the second break with the highest intensity peak of their entire tournament (0.16) and two goals in the 79th and 83rd minutes, sealing the comeback.

Against England, their growing superiority from the 60th minute onwards became constant after the break in the 69th, leading to goals in the 84th and 92nd minutes. It's true that the score in all these cases demanded a reaction. But the synchronicity between the surge in intensity and the restart of play is too frequent for the same team to be ignored.

On the other side of the coin is the Czech Republic, who presented the most consistent negative streak in the tournament, despite playing only three matches. The breaks interrupted their best moments against South Korea—twice—and against Mexico. The second-half break against South Africa preceded the goal that cost them the draw in the 83rd minute. Brazil also struggled in these situations: they conceded a goal to Japan immediately after a restart and witnessed Norway turn the 68th-minute break in the round of 16 into sustained pressure that ultimately eliminated them.

The champion deserves special attention, as their tournament performance marked them as the best "consolidator." Of their 16 breaks, most led to an intensification of the dominance they already held, and three resulted in a goal immediately after the restart. The 1-0 goal against Belgium in the quarterfinals came in the 31st minute, five minutes after the first break. The 1-0 goal against Austria fell in the 36th minute, after the team returned from the break with their most aggressive phase of the match. The goal against Portugal in the 90th minute crowned a fifteen-minute period of increasing pressure that began immediately after the break in the 68th minute.

The exception confirms the nuance that permeates the entire analysis. Against Uruguay, the Spanish national team reached the first break at the height of their assault, with the highest xThreat peak in the group stage, but emerged from it for fifteen minutes of even play. The goal in the 43rd minute came in a much calmer context.

In the final, on the other hand, the breaks barely affected the performance curve, which was already in their favor: moderate control before and after them, and the extra-time goal came far from any restart of play. Spain benefited from the "cooling periods" when the match was alive, and ignored them when they were already in control.

Everything listed so far describes temporal coincidences, not causal relationships. The second break coincides with the classic window for substitutions, and without comparing the data with changes in each match, it's impossible to separate the "cooling effect" from the effect of a triple substitution in the 70th minute. The score also influences in the same direction: a team losing at that stage will attack with or without a break. And cases with a strong impact are about fifteen out of over 200 analyzed windows; the average match emerged from its breaks in the same way it entered them.

With these caveats, the pattern is clear: the breaks at this World Cup rarely saved a struggling team and often gave new impetus to the dominant one. The only team systematically harmed was the one entering them in the throes of an offensive ecstasy. Sometimes, three minutes with water bottles and tactical instructions are enough to extinguish 20 minutes of football. The question is whether this break will become a permanent fixture, and if so, whether it will leave a real imprint beyond commercial breaks.