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2015 USTA Clay Court Championships - System Comparisons
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How often do the different rating systems correctly predict the winners of matches?
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TRNUTR
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77%72%75%
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54%355 / 491 40%
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53 / 98 104 / 258
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83%
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1,434 / 1,735
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60%46%
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154 / 258 45 / 98
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28%
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136 / 491
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USTA
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69%
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All Rating Systems
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How often do all the systems agree on the outcome?
1735matches67%of the time
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When they agree, how often does the higher rated player win?
1434times83%of the time
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When they agree, how often does the lower rated player win?
301times17%of the time
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TRN & UTR Ratings
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How often do TRN and UTR agree on the outcome?
2226matches86%of the time
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When they agree, how often does the higher rated player win?
1789times80%of the time
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When they agree, how often does the lower rated player win?
437times20%of the time
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How often do TRN and UTR disagree on the outcome?
356matches14%of the time
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When they disagree, how often does the higher rated TRN player win?
207times58%of the time
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When they disagree, how often does the higher rated UTR player win?
149times42%of the time
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TRN & USTA Ratings
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How often do TRN and USTA agree on the outcome?
1993matches77%of the time
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When they agree, how often does the higher rated player win?
1588times80%of the time
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When they agree, how often does the lower rated player win?
405times20%of the time
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How often do TRN and USTA disagree on the outcome?
589matches23%of the time
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When they disagree, how often does the higher rated TRN player win?
408times69%of the time
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When they disagree, how often does the higher rated USTA player win?
181times31%of the time
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UTR & USTA Ratings
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How often do UTR and USTA agree on the outcome?
1833matches71%of the time
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When they agree, how often does the higher rated player win?
1479times81%of the time
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When they agree, how often does the lower rated player win?
354times19%of the time
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How often do UTR and USTA disagree on the outcome?
749matches29%of the time
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When they disagree, how often does the higher rated UTR player win?
459times61%of the time
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When they disagree, how often does the higher rated USTA player win?
290times39%of the time
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Notes: This chart only uses the 2,582 matches from our study that were played to completion where both players were rated by all systems and player ratings were unique (i.e., no projected ties).
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