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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.08290 |
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| _version_ | 1866909032097251328 |
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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 |