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Player profile

Kristin Ostby: estimated dynamic rating

Kristin Ostby
USTA4.0
Gunn HS
4.01
Estimated dynamic rating
▲ +0.12 this season
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Combo · 2026
4 matches
4.154.053.94
Aug · 3.99
Oct · 3.95
Oct 11 · Doubles−0.11
L W. Zhang / Z. Cheng
4-6,4-6 · 2D · with Stephanie Keller
Your combo rating, from combo matches only. It doesn’t move your 4.01.● Won ● Lost · Select a point to see that match.Your whole season is recalculated daily, so earlier points can shift as new results come in.

Current season

18 matches

Published NorCal results in 2026 — 14 scoring, 4 combo or mixed. Combo and mixed don’t affect NTRP ratings.

Oct 11, 2026 · Doubles · 2D · Combo

Lost 4-6,4-6
−0.11

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
3.95
Stephanie Keller(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CW8.5A-DT
4.16

Opponents

Winnie ZhangCurrently on SUNNYVALE MTC CW9.5A
4.24
Zixiao ChengCurrently on SUNNYVALE MTC CW7.5B
3.90
Combo rating 4.06 → 3.95Doubles result

Sep 13, 2026 · Doubles · 2D · Combo

Lost 6-7,4-6
−0.09

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
3.95
Stephanie King(partner)Currently on UNIVERSITY CLUB PA 55MX9.0A
4.17

Opponents

Xuezhen FanCurrently on RINCONADA PK CW8.5A
4.31
Minvi BuiCurrently on RINCONADA PK CW8.5A
4.08
Combo rating 4.15 → 4.06Doubles result

Sep 5, 2026 · Doubles · 2D · Combo

Won 6-1,6-1
+0.21

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
3.95
Celeste Woloshyn(partner)Currently on GUNN HS CW8.5A
3.99

Opponents

Wendy ChengCurrently on MOUNTAIN VIEW TC/RENGSTORFF PK CW9.5A
4.31
Yiwen XieCurrently on SUNNYVALE MTC CW8.5C
4.18
Combo rating 3.94 → 4.15Doubles result

Aug 30, 2026 · Doubles · 1D · Combo

Lost 2-6,2-6
−0.05

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
3.95
Reid Myers(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CW8.5A-DT
4.08

Opponents

Shelley MeyerCurrently on SUNNYVALE TC/SUNNYVALE MTC CW7.5A
4.08
Leslie Airola-MurveitCurrently on SHARON HTS CC CW8.5A
4.52
Combo rating 3.99 → 3.94Doubles result

Jun 28, 2026 · Singles

Lost 6-7,2-6
−0.08

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Yuewei WangCurrently on SUNNYVALE MTC CW8.5D
3.92
Rating 4.10 → 4.01Singles result

Jun 13, 2026 · Singles

Won 6-3,4-6,1-0
+0.05

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Baozhang RenCurrently on SUNNYVALE MTC CW7.5B
3.65
Rating 4.05 → 4.10Singles result

Jun 7, 2026 · Singles

Won 7-6,6-3
+0.01

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Amy RouboundCurrently on SUNNYVALE TC/SUNNYVALE MTC CW7.5B-DT
3.38
Rating 4.04 → 4.05Singles result

May 31, 2026 · Singles

Won 6-2,6-1
+0.03

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Christina CragholmCurrently on UNIVERSITY CLUB PA CW7.5A
3.61
Rating 4.01 → 4.04Singles result

May 23, 2026 · Singles

Won 4-6,6-4,1-0
+0.11

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Kelsey PalmerCurrently on GOLDMAN TC CW8.5A
4.11
Rating 3.90 → 4.01Singles result

May 10, 2026 · Singles

Lost 4-6,5-7
−0.11

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Jiayi ShenCurrently on RINCONADA PK CW8.5A
4.22
Rating 4.00 → 3.90Singles result

Mar 15, 2026 · Singles

Won 6-1,6-3
+0.04

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Yen LeCurrently on FREMONT HILLS CC CW7.5A
3.65
Rating 3.96 → 4.00Singles result

Feb 28, 2026 · Singles

Won 6-3,6-2
+0.02

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Donna Eaton
3.44
Rating 3.94 → 3.96Singles result

Feb 21, 2026 · Doubles

Lost 1-6,6-7
−0.11

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01
Sofia Yoshimoto(partner)Currently on RINCONADA PK CW8.5A
4.07

Opponents

Michele LindzyCurrently on MOUNTAIN VIEW TC/RENGSTORFF PK 55MX8.0A
4.12
Christine ChoyeCurrently on UNIVERSITY CLUB PA 55MX9.0A
4.08
Rating 4.05 → 3.94Doubles result

Feb 14, 2026 · Singles

Won 6-2,6-2
+0.11

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Trina GliddenCurrently on GLTF/SAN FRAN ST U CW7.5A
3.95
Rating 3.94 → 4.05Singles result

Jan 31, 2026 · Singles

Won 6-1,6-4
+0.01

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Melissa Weiss
3.32
Rating 3.85 → 3.86Singles result

Jan 24, 2026 · Doubles

Won 6-0,7-5
+0.14

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01
Sofia Yoshimoto(partner)Currently on RINCONADA PK CW8.5A
4.07

Opponents

Shani PodellCurrently on SUNNYVALE TC/SUNNYVALE MTC CW8.5A-DT
3.92
Sarah TomitaCurrently on MENLO ATHERTON HS CW8.5A
4.05
Rating 3.71 → 3.85Doubles result

Jan 11, 2026 · Singles

Won 6-4,4-6,1-0
+0.11

Kristin’s side

Kristin OstbyCurrently on GUNN HS CW8.5A
4.01

Opponents

Margo Dhaliwal
3.96
Rating 3.60 → 3.71Singles result

Combo results move their own rating, not your NTRP. USTA computes NTRP from adult singles and doubles only.

Best match
+0.21
Sep 5 vs W. Cheng / Y. Xie
Worst match
−0.11
Oct 11 vs W. Zhang / Z. Cheng
Where you started ›3.89
2023 year-end NTRP 4.03.75
Scale calibration+0.14
Season start3.89
Your starting point comes from your official year-end NTRP, not from any third-party rating. The calibration is a fixed shift that puts our scale on the same level as NTRP.
▲
Combo and mixed matches aren’t included. This rating is built from standard men’s and women’s league play only — combo and mixed results feed your separate combo/mixed ratings, not this one.
Updated Nov 4
Year-end re-anchoring
Pulled toward the 2024 year-end level−0.053.84
Pulled toward the 2025 year-end level−0.023.60

More about Kristin

Kristin Ostby has been a USTA NorCal 4.0 since 2022. The estimated dynamic rating is 4.01, up 0.12 this season, with a 12–6 record in 2026 across regular and combo play. Most frequent partner: Michele Brown, 1–3 in 4 matches together.

Record

12–6
2026 season, 18 matches
10–11
2025 season, 21 matches
6
Longest winning streak
5–7
Matches that went to a third set or match tiebreak

Partners

Best wins

Against the highest-rated opponents by year-end NTRP, this season and last.

Year-end NTRP, 2022–2026

4.0 from 2022 to 2026.

MatchPoint's estimated dynamic rating is an independent estimate from published USTA NorCal league results through November 4, 2026. It is not a rating USTA calculates, and MatchPoint is not affiliated with USTA.

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