El impacto del VAR en el fútbol: un análisis estadístico

Hoy en día, los espectadores quieren saber más detalles y claridad sobre cualquier tipo de pronóstico deportivo. Debido a esto, los sitios web de partidos de fútbol como https://papa-score.com/ han comenzado a brindar predicciones detalladas de fútbol y estadísticas sobre las diferentes ligas europeas e incluso las tablas de la APL.

Un análisis estadístico del impacto del VAR: Copas Mundiales Femeninas de la FIFA 2015 y 2019

El objetivo de este estudio fue averiguar cómo afecta el VAR a las decisiones arbitrales durante los partidos de la Copa Mundial Femenina de la FIFA. La muestra incluye los 52 juegos tanto de la competencia de 2015, que tuvo lugar antes de la implementación del VAR, como de la competencia de 2019, que tuvo lugar después de la implementación del VAR.

Para cada partido, se recogieron datos sobre 10 variables, incluido el tiempo jugado en la primera y segunda mitad, tiempo total jugado, penaltis, fuera de juego, faltas, goles, córners, tarjetas amarillas y rojas. Las variables de concordancia se compararon antes y después de la implementación del VAR mediante una prueba U de Mann-Whitney, análisis bayesiano, modelo lineal generalizado e inferencia no clínica basada en el tamaño.

Los resultados mostraron que después de la introducción del VAR en la primera mitad, el tiempo de juego aumentó significativamente con tamaños de efecto de moderados a grandes. [p 0.001, BF10 = 547.05, Cohen’s d = 1.06, 90%CI (0.71, 1.40)]la segunda mitad [p 0.001, BF10 = 57.09, Cohen’s d = 0.91, 90%CI (0.57, 1.25)]y todo el juego [p 0.001, BF10 = 1,120.39.

The main conclusions from this study were that playing time increased slightly, although not excessively, during the first half, second half, and the entire game. These results suggest that elite women’s football matches have not been adversely affected by the implementation of VAR.

However, further research is required to confirm the efficacy and determine the usefulness of VAR in football. Professionals can benefit from this type of study’s practical applications by knowing how VAR affects top women’s football.

Pros and Cons of VAR on football

VAR has been a game-changer in football, offering a new level of precision and accuracy to referees’ decision-making. The technology uses multiple cameras positioned around the pitch to provide video footage that can be reviewed by an official in real-time, allowing for more accurate decisions.

However, this technology has its challenges. Here are some pros and cons of VAR.

Pros of VAR on football

Better decision-making

One of the critical benefits of VAR is that it aids referees in making more informed choices throughout a game. Goals, penalties, offside, and red card decisions can all be reviewed using VAR. Thanks to technology, referees can analyze occurrences from several perspectives, slow down the video, and focus on particular elements. As a result, they can better make judgments that will produce more equitable outcomes for all engaged teams.

Fairness of the game

Fairness is improved because referees may now see fouls and other infractions they might have missed throughout the game, thanks to VAR. This is crucial for high-stakes games because the result can significantly affect a team’s season or financial situation.

Make the game less controversial.

VAR technology can aid in reducing controversies and conflicts that occur during games. Because the action is examined from various perspectives and in slow motion when a decision is being reviewed by VAR, there is less space for interpretation or uncertainty. This can lessen the possibility of disputes between players and coaches and fan complaints.

Improve the transparency

Transparency in decision-making is made possible through VAR technology. Referees can review occurrences more than once, which aids in their decision-making. This openness can boost confidence in the officiating procedure and enhance the sport’s overall integrity.

Cons of VAR on football

Game disruption

One of the primary arguments against VAR is that it may cause game disruption. The game is delayed while the referee and VAR officials examine the footage after a VAR review of an incident. As it disrupts the game’s flow, this may irritate players, coaches, and spectators.

Issues with interpretation

Despite the use of technology, referees still have some discretion. This implies that there can still be inconsistent decision-making even with the help of VAR. For instance, a referee’s interpretation of an incident may differ from another’s, resulting in disagreements and complaints.

Not available for vast use

VAR is only effective for a limited range of choices. This implies that it could only sometimes be reliable, especially regarding more arbitrary judgments like fouls or handballs. Furthermore, not all teams can access VAR because it cannot be utilized in lower-league games.

Can be costly

VAR technology installation and maintenance can be pricey. This can be a problem for smaller clubs or leagues that need the financial means to invest in the technology, this can be a problem. Additionally, some fans may be burdened by higher ticket prices due to VAR implementation costs being passed through to the general public.

Conclusion:

The introduction of VAR has had a significant impact on football. The data presented in this article gives an overview of how VAR has changed the game, from an increase in penalty kicks awarded to a decrease in goals disallowed due to offside.

It is clear that referees have become more confident in their decisions, and the sport benefits as a result. There is room for improvement in VAR implementation and its accuracy.

Reference

Zhang, Y., Li, D., Memmert, D., Li, C., & Fu, M. (2022). The effect of the video assistant referee (VAR) on referees’ decisions at FIFA Women’s World Cups. Frontiers in Psychology, 13. https://doi.org/10.3389/fpsyg.2022.984367