MatchPoint

Player profile

Yulia Costello: estimated dynamic rating

Yulia Costello
USTA3.5
NorCal league player
2.96
Estimated dynamic rating
▲ +0.17 this season
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Combo · 2026
6 matches
3.163.072.97
Apr · 3.13
Oct · 3.16
Oct 28 · Doubles+0.01
W G. Deforest / C. Eldridge
6-4,6-0 · 3D · with Grace Fan
Your combo rating, from combo matches only. It doesn’t move your 2.96.● 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

40 matches

Published NorCal results in 2026 — 28 scoring, 12 combo or mixed. Combo and mixed don’t affect NTRP ratings.

Oct 28, 2026 · Doubles · 3D · Combo

Won 6-4,6-0
+0.01

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.16
Grace Fan(partner)Currently on STONEBRAE CC CW6.5A-DT
3.10

Opponents

Grace DeforestCurrently on BAY CLUB PL CW6.5B-DT
2.53
Cindy EldridgeCurrently on CASTLEWOOD CC CW6.5A
2.29
Combo rating 3.15 → 3.16Doubles result

Sep 15, 2026 · Doubles · 2D · Combo

Won 6-0,6-1
+0.16

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.16
Christina Kuo(partner)Currently on WASHINGTON PK CW6.5A
3.43

Opponents

Shelley LoberCurrently on BLACKHAWK CC CW6.5A-DT
3.37
Robin KennyCurrently on WALNUT CREEK RC/Walnut Creek TC CW6.5B
3.04
Combo rating 3.00 → 3.15Doubles result

Sep 11, 2026 · Doubles · 3D · Combo

Won 6-4,6-3
+0.03

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.16
Patti Presto(partner)Currently on WALNUT CREEK RC/Walnut Creek TC CW6.5B
3.11

Opponents

Vengassery VijayakumarCurrently on RUBY HILL GC CW6.5A-DT
2.61
Angelina LiCurrently on RUBY HILL GC CW6.5A-DT
2.75
Combo rating 2.97 → 3.00Doubles result

Sep 3, 2026 · Doubles · 2D · Combo

Lost 4-6,2-6
−0.10

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.16
Minh Cannon(partner)Currently on WASHINGTON PK CW6.5A
3.60

Opponents

Toni LiCurrently on PLEASANTON CW6.5A-DT
3.33
Laura HerbertCurrently on PLEASANTON CW6.5A-DT
3.02
Combo rating 3.06 → 2.97Doubles result

Aug 1, 2026 · Doubles · Mixed

Lost 5-7,2-6
−0.04

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.08
John Vandaveer(partner)Currently on WALNUT CREEK RC/Walnut Creek TC 55MX8.0B
3.56

Opponents

Oliver NonoCurrently on PLEASANTON CM7.5B
3.38
Danielle DuperlyCurrently on UNION CITY LEISURE S/VETERANS MEM PK 55MX8.0A
3.63
Mixed rating 3.12 → 3.08Doubles result

Jul 26, 2026 · Doubles · Mixed

Lost 0-6,4-6
−0.02

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.08
Rowan Semilla(partner)Currently on PLEASANTON CM7.5D
3.42

Opponents

Eric TayagCurrently on UNION CITY LEISURE S/VETERANS MEM PK CM7.5A
3.62
Aileen SalamidaCurrently on WILLOW PASS PK CW7.5A
3.69
Mixed rating 3.14 → 3.12Doubles result

May 21, 2026 · Singles

Lost 2-6,5-7
−0.03

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Aditi SinhaCurrently on FREMONT TC CW6.5A
3.29
Rating 3.10 → 3.07Singles result

May 19, 2026 · Doubles

Lost 6-4,4-6,0-1
−0.03

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Shannon Smuts(partner)Currently on RICHMOND TA/NICHOLL PK 55MX7.0A
3.29

Opponents

Kay Kolos MccubbinCurrently on WALNUT CREEK RC/Walnut Creek TC CW6.5C
3.34
Rosalyn MoyaCurrently on SAN PABLO PK CW6.5A
3.18
Rating 3.17 → 3.14Doubles result

May 18, 2026 · Singles

Won 6-2,7-6
+0.20

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Mary J BedegiCurrently on BAY CLUB PL CW6.5A-DT
3.11
Rating 2.98 → 3.17Singles result

May 17, 2026 · Doubles

Lost 6-7,3-6
−0.04

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Shannon Smuts(partner)Currently on RICHMOND TA/NICHOLL PK 55MX7.0A
3.29

Opponents

Robyn SchleifmanCurrently on WASHINGTON PK CW6.5A
3.35
Christina KuoCurrently on WASHINGTON PK CW6.5A
3.21
Rating 3.02 → 2.98Doubles result

May 16, 2026 · Doubles · Combo

Lost 1-6,4-6
−0.03

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.16
Liz Holland(partner)
3.39

Opponents

Sharleen HoustonCurrently on WALNUT CREEK RC/Walnut Creek TC CW8.5A
4.06
Pearl LeungCurrently on OSAGE PK S70W7.0A
3.30
Combo rating 3.10 → 3.06Doubles result

May 12, 2026 · Singles

Lost 4-6,4-6
−0.10

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Mary RoachCurrently on WALNUT COUNTRY HOA 55MX7.0A
3.04
Rating 3.12 → 3.02Singles result

May 10, 2026 · Singles

Lost 3-6,2-6
−0.12

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Marian DeukerCurrently on CLAREMONT R and S CW6.5A
3.00
Rating 3.24 → 3.12Singles result

May 9, 2026 · Singles

Lost 7-6,3-6,0-1
−0.01

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Nikki RutherfordCurrently on DAVIE STADIUM CW7.5A
3.55
Rating 3.25 → 3.24Singles result

May 4, 2026 · Singles

Lost 4-6,0-6
−0.04

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Catherine GriffinCurrently on DIABLO CC CW7.5A-DT
3.35
Rating 3.30 → 3.25Singles result

Apr 19, 2026 · Doubles · Combo

Lost 0-6,2-6
−0.03

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.16
Shannon Smuts(partner)Currently on RICHMOND TA/NICHOLL PK 55MX7.0A
3.11

Opponents

Marla AufmuthCurrently on SAN PABLO PK CW7.5A
3.43
Judith SilverCurrently on RICHMOND TA/NICHOLL PK 55MX7.0A
3.75
Combo rating 3.13 → 3.10Doubles result

Apr 18, 2026 · Singles

Lost 2-6,6-1,0-1
−0.14

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Jennifer SoineCurrently on DIABLO CC CW6.5A-DT
2.99
Rating 3.48 → 3.34Singles result

Apr 17, 2026 · Singles

Won 7-5,6-2
+0.11

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Julia GilletteCurrently on BAY CLUB PL CW6.5A-DT
2.99
Rating 3.37 → 3.48Singles result

Mar 13, 2026 · Doubles · Mixed

Lost 1-6,7-5,0-1
−0.10

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.08
Jon Bendich(partner)Currently on CLAREMONT R and S CM7.5A
3.13

Opponents

Junko GreenCurrently on WALNUT CREEK RC/Walnut Creek TC CW6.5C
3.53
Tom GreenCurrently on DAVIE STADIUM CM6.5A
3.03
Mixed rating 3.24 → 3.14Doubles result

Mar 11, 2026 · Singles

Lost 6-0,2-6,0-1
−0.09

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Cindy KimCurrently on CLAREMONT CC CW6.5A
2.94
Rating 3.46 → 3.37Singles result

Mar 3, 2026 · Doubles

Lost 2-6,2-6
−0.08

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Traci Rebiejo(partner)Currently on WALNUT CREEK RC/Walnut Creek TC CW6.5B
2.70

Opponents

Lindsay WalkerCurrently on DIABLO CC CW6.5A-DT
3.25
Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.33
Rating 3.60 → 3.52Doubles result

Mar 2, 2026 · Doubles

Lost 2-6,0-6
−0.05

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Maya Morrison(partner)Currently on STONEBRAE CC CW6.5A-DT
2.64

Opponents

Nga GrossCurrently on THE CLUB @LIVERMORE CW7.5A
3.41
Judy TheriaultCurrently on THE CLUB @LIVERMORE CW7.5A
3.45
Rating 3.65 → 3.60Doubles result

Mar 1, 2026 · Doubles

Won 6-2,5-7,1-0
+0.17

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Marla Aufmuth(partner)Currently on SAN PABLO PK CW7.5A
3.61

Opponents

Vicki WongCurrently on RICHMOND TA/NICHOLL PK 55MX7.0A
3.32
Jennifer MartinisCurrently on DAVIE STADIUM 55MX7.0A
3.43
Rating 3.48 → 3.65Doubles result

Feb 27, 2026 · Singles

Won 6-5 RE
+0.15

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Christine HaskettCurrently on HARBOR BAY 55MX7.0A
3.11
Rating 3.33 → 3.48Singles result

Feb 14, 2026 · Doubles

Lost 3-6,4-6
−0.08

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Shannon Smuts(partner)Currently on RICHMOND TA/NICHOLL PK 55MX7.0A
3.29

Opponents

Olga BurkhinaCurrently on CLAREMONT R and S CW6.5B
3.26
Cynthia GarciaCurrently on DAVIE STADIUM CW6.5B
3.29
Rating 3.41 → 3.33Doubles result

Feb 13, 2026 · Doubles

Lost 4-6,3-6
−0.05

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Jazelle Nono(partner)Currently on STONEBRAE CC CW6.5A-DT
3.46

Opponents

Holly McmullenCurrently on DIABLO CC CW6.5A-DT
3.56
Rochelle RichCurrently on DIABLO CC CW7.5A-DT
3.30
Rating 3.46 → 3.41Doubles result

Feb 9, 2026 · Doubles · Mixed

Won 6-2,6-4
+0.21

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.08
John Vandaveer(partner)Currently on WALNUT CREEK RC/Walnut Creek TC 55MX8.0B
3.56

Opponents

Lara FacteauCurrently on WALNUT CREEK RC/Walnut Creek TC CW7.5C
3.48
Saurabh ShrivastavaCurrently on BLACKHAWK CC CM6.5A
3.33
Mixed rating 3.03 → 3.24Doubles result

Jan 31, 2026 · Singles

Won 6-1,6-4
+0.09

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Julia GilletteCurrently on BAY CLUB PL CW6.5A-DT
2.99
Rating 3.37 → 3.46Singles result

Jan 27, 2026 · Singles

Won 6-4,3-6,1-0
+0.17

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Juan WuCurrently on BAY CLUB PL CW6.5B-DT
3.29
Rating 3.20 → 3.37Singles result

Jan 25, 2026 · Doubles · Mixed

Lost 6-7,7-5,0-1
−0.02

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
3.08
Ryan Semmelmeyer(partner)
3.59

Opponents

Bjorn FabianCurrently on UNION CITY LEISURE S/VETERANS MEM PK CM8.5A
3.86
Eppie RayCurrently on MT EDEN T AND S CLUB/VETERANS MEM PK CW6.5A
3.57
Mixed rating 3.08 → 3.07Doubles result

Jan 21, 2026 · Doubles

Won 6-0,6-3
+0.10

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Shannon Smuts(partner)Currently on RICHMOND TA/NICHOLL PK 55MX7.0A
3.29

Opponents

Jean KondoCurrently on WALNUT CREEK RC/Walnut Creek TC CW6.5B
2.94
Maryam AminiCurrently on WASHINGTON PK CW6.5A
2.60
Rating 3.11 → 3.22Doubles result

Jan 15, 2026 · Singles

Lost 3-6,1-6
−0.03

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96

Opponents

Fang WongCurrently on BAY CLUB SANTA CLARA CW7.5A
3.48
Rating 3.14 → 3.11Singles result

Jan 9, 2026 · Doubles

Lost 3-6,2-6
−0.07

Yulia’s side

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Joanna Ha(partner)Currently on WALNUT CREEK RC/Walnut Creek TC CW6.5B
2.82

Opponents

Stephanie LawCurrently on WALNUT CREEK RC/Walnut Creek TC CW7.5C
3.17
Cynthia AttiyehCurrently on WALNUT CREEK RC/Walnut Creek TC 55MX7.0B
3.13
Rating 3.21 → 3.14Doubles result

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

Best match
+0.16
Sep 15 vs S. Lober / R. Kenny
Worst match
−0.10
Sep 3 vs T. Li / L. Herbert
Where you started ›2.79
2023 year-end NTRP 3.02.65
Scale calibration+0.14
Season start2.79
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−0.022.77
Pulled toward the 2025 year-end level+0.173.21

More about Yulia

Yulia Costello has been a USTA NorCal 3.5 since 2025. The estimated dynamic rating is 2.96, up 0.17 this season, with a 11–29 record in 2026 across regular, combo and mixed play. Most frequent partner: Shannon Smuts, 1–4 in 5 matches together.

Record

11–29
2026 season, 40 matches
12–13
2025 season, 25 matches
4
Longest winning streak
5–10
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

3.5 in 2022, 3.0 from 2023 to 2024 and 3.5 from 2025 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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