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Main Authors: Devriesere, Karel, Goossens, Dries, Spieksma, Frits
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2508.08290
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author Devriesere, Karel
Goossens, Dries
Spieksma, Frits
author_facet Devriesere, Karel
Goossens, Dries
Spieksma, Frits
contents Recently, UEFA changed the group stage of its international soccer competitions to an incomplete round robin tournament. Previously, teams were divided into groups, each playing a double round robin tournament with a resulting ranking table. In contrast, the new format has all teams competing in one league, producing a single ranking. We investigate the effect of the new format on the number of competitive matches in the UEFA Champions League. A match is non-competitive if the prize for at least one opponent does not depend on the match outcome, or if there exists an opportunity for both opponents to collude; otherwise, we call a match competitive. Using Monte Carlo simulations, we show that the new format results in more competitive matches than the old format.
format Preprint
id arxiv_https___arxiv_org_abs_2508_08290
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Evaluating Competitiveness in UEFA's New Champions League Format
Devriesere, Karel
Goossens, Dries
Spieksma, Frits
Physics and Society
Recently, UEFA changed the group stage of its international soccer competitions to an incomplete round robin tournament. Previously, teams were divided into groups, each playing a double round robin tournament with a resulting ranking table. In contrast, the new format has all teams competing in one league, producing a single ranking. We investigate the effect of the new format on the number of competitive matches in the UEFA Champions League. A match is non-competitive if the prize for at least one opponent does not depend on the match outcome, or if there exists an opportunity for both opponents to collude; otherwise, we call a match competitive. Using Monte Carlo simulations, we show that the new format results in more competitive matches than the old format.
title Evaluating Competitiveness in UEFA's New Champions League Format
topic Physics and Society
url https://arxiv.org/abs/2508.08290