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Estimated ratings — not official USTA. Updated nightly from public TennisLink data. About the data → · Premium · Terms · Privacy · Disclaimer · Contact

Ratings last updated Oct 9, 2026, 6:33 AM PDT

Donald Kaefer tennis rating & results — MatchMetric

Tennis player

Donald Kaefer

USTA NorCal

3.09

Performance rating

Tennis ratings and match history

Tennis ratings and match results for Donald Kaefer, a USTA NorCal player.

MatchMetric performance ratings are estimates, not official USTA ratings. Updated nightly.

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