World Tennis Number: The new gold standard, or a failure?
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| Title: | World Tennis Number: The new gold standard, or a failure? |
|---|---|
| Authors: | SangHyuk Im, Chang-Hoon Lee |
| Source: | Coaching & Sport Science Review (Spanish Version). Dec2023, Vol. 30 Issue 91, p6-12. 7p. |
| Subjects: | TENNIS, NATIONAL championships |
| Abstract: | The United States Tennis Association (USTA) has recently implemented World Tennis Number (WTN), as their official rating system. It is unknown if this rating system is accurate, therefore, the objective of this study is to determine the predictability of WTN in match outcomes, comparing it to the accuracy at which Universal Tennis Rating (UTR) predicts match outcomes. We collected matches from the 2022 USTA Boys' 16 & 18 National Championships. For WTN, UTR, and USTA ranking, we compared the predictability of match results using the Area-Under-Receiver- Operating-Characteristic (AUROC) Curve. Of the 806 matches analyzed, players with better WTNs, better UTRs, and better USTA rankings won in 76.8%, 76.7%, and 64.3% of matches, respectively. The predictability of WTN difference between players was comparable to that of UTR difference between players (AUROC, WTN: 0.847 vs UTR: 0.859, P-value = 0.14), and was superior to that of the difference in USTA rankings between players (P-value < 0.001). As WTN was superior to USTA ranking and was as accurate as UTR in terms of predicting match results, its use as a rating system is validated. This result can support the use of WTN for seeding criteria in USTA tournaments. [ABSTRACT FROM AUTHOR] |
| Database: | Referencia Latina |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: zah DbLabel: Referencia Latina An: 174727847 RelevancyScore: 1015 AccessLevel: 6 PubType: Periodical PubTypeId: serialPeriodical PreciseRelevancyScore: 1014.69183349609 |
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| Items | – Name: Title Label: Title Group: Ti Data: World Tennis Number: The new gold standard, or a failure? – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22SangHyuk+Im%22">SangHyuk Im</searchLink><br /><searchLink fieldCode="AR" term="%22Chang-Hoon+Lee%22">Chang-Hoon Lee</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Coaching+%26+Sport+Science+Review+%28Spanish+Version%29%22">Coaching & Sport Science Review (Spanish Version)</searchLink>. Dec2023, Vol. 30 Issue 91, p6-12. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22TENNIS%22">TENNIS</searchLink><br /><searchLink fieldCode="DE" term="%22NATIONAL+championships%22">NATIONAL championships</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The United States Tennis Association (USTA) has recently implemented World Tennis Number (WTN), as their official rating system. It is unknown if this rating system is accurate, therefore, the objective of this study is to determine the predictability of WTN in match outcomes, comparing it to the accuracy at which Universal Tennis Rating (UTR) predicts match outcomes. We collected matches from the 2022 USTA Boys' 16 & 18 National Championships. For WTN, UTR, and USTA ranking, we compared the predictability of match results using the Area-Under-Receiver- Operating-Characteristic (AUROC) Curve. Of the 806 matches analyzed, players with better WTNs, better UTRs, and better USTA rankings won in 76.8%, 76.7%, and 64.3% of matches, respectively. The predictability of WTN difference between players was comparable to that of UTR difference between players (AUROC, WTN: 0.847 vs UTR: 0.859, P-value = 0.14), and was superior to that of the difference in USTA rankings between players (P-value < 0.001). As WTN was superior to USTA ranking and was as accurate as UTR in terms of predicting match results, its use as a rating system is validated. This result can support the use of WTN for seeding criteria in USTA tournaments. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=zah&AN=174727847 |
| RecordInfo | BibRecord: BibEntity: Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 6 Subjects: – SubjectFull: TENNIS Type: general – SubjectFull: NATIONAL championships Type: general Titles: – TitleFull: World Tennis Number: The new gold standard, or a failure? Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: SangHyuk Im – PersonEntity: Name: NameFull: Chang-Hoon Lee IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 18122329 Numbering: – Type: volume Value: 30 – Type: issue Value: 91 Titles: – TitleFull: Coaching & Sport Science Review (Spanish Version) Type: main |
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