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Don Bobertz

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Rancho Santa Fe, CA
4.0M year-end 2025
i
Mixed Exclusive — this player’s rating comes only from mixed play
28 matches · 23W–5L · seasons 2019–2025
Match history28 matches
W
2025-05-10 · SDNC 8.0 RSFTC/ Kalench · #2 Doubles · 8.0 · with Gillian Gillies mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-3, 4-6, 1-0
L
2025-04-19 · SDNC 8.0 RSFTC/ Kalench · #3 Doubles · 8.0 · with Mary Gaylord mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
0-6, 1-6
W
2025-04-12 · SDNC 8.0 RSFTC/ Kalench · #2 Doubles · 8.0 · with Yvonne Kalench mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-1, 6-3
W
2023-07-30 · SDNC 8.0 RSF/ Kardas · #1 Doubles · 8.0 · with Mike Burzinski
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-4, 6-1
W
2023-07-23 · SDNC 8.0 RSF/ Kardas · #1 Doubles · 8.0 · with Mike Burzinski
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-2, 6-2
L
2023-07-16 · SDNC 8.0 RSF/ Kardas · #1 Doubles · 8.0 · with Thomas Haklar
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
3-6, 5-7
W
2023-06-25 · SDNC 8.0 RSF/ Kardas · #1 Doubles · 8.0 · with Thomas Haklar
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
7-5, 7-6
W
2022-07-09 · SDNC LLW 7.0 Rancho Santa Fe TC/ Lindsey · #2 Doubles · 7.0 · with Mary Frances Morilak mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-4, 6-4
W
2022-01-29 · SDNC 7.0 Rancho Santa Fe TC/ Lindsey · #2 Doubles · 7.0 · with Mary Frances Morilak mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-2, 6-2
W
2021-12-11 · SDNC LLW 7.0 Rancho Santa Fe TC/ Lindsey · #1 Doubles · 7.0 · with Mary Frances Morilak mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-2, 6-1
W
2021-11-13 · SDNC LLW 7.0 Rancho Santa Fe TC/ Lindsey · #1 Doubles · 7.0 · with Mary Frances Morilak mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-1, 6-4
W
2021-11-06 · SDNC LLW 7.0 Rancho Santa Fe TC/ Lindsey · #1 Doubles · 7.0 · with Mary Frances Morilak mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-0, 2-6, 1-0
Where you rank locallyagainst everyone at your level
Teams9 teams · 2019–2025
Over timerating by season, and how you rank
By level3 levels played
8.0
66.7%
4W–2L · 55.5% of games
7.0mixed
89.5%
17W–2L · 68.5% of games
8.0mixed
2W–1L
not enough matches yet

Games won matters more than matches won — NTRP adjusts on margins.

By lineusually #1 Doubles, 61% of the time
#1 Doubles
61%
17 matches
#2 Doubles
29%
8 matches
#3 Doubles
11%
3 matches

How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.

Every match is a story with a beginning, a middle and an end, and you are writing it as you go.
Chris Evert