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Player profile

Juliana Costello: estimated dynamic rating

Juliana Costello
USTA2.5
NorCal league player
2.30
Estimated dynamic rating
▲ +0.01 this season
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Combo · 2026
7 matches
2.902.632.35
Aug · 2.35
Oct · 2.54
Oct 25 · Doubles−0.12
L J. Bollyky / M. Leivenberg
3-6,4-6 · 2D
Your combo rating, from combo matches only. It doesn’t move your 2.30.● 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

19 matches

Published NorCal results in 2026 — 12 scoring, 7 combo or mixed. Combo and mixed don’t affect NTRP ratings.

Oct 25, 2026 · Doubles · 2D · Combo

Lost 3-6,4-6
−0.12

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.54

Opponents

Jennifer BollykyCurrently on STANFORD-CRA CW6.5A
2.77
Margaux LeivenbergCurrently on STANFORD-CRA CW5.5A
2.53
Combo rating 2.66 → 2.54Doubles result

Oct 17, 2026 · Doubles · 3D · Combo

Lost 3-6,0-6
−0.03

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.54
Erika Alor(partner)Currently on LADERA OAKS CW5.5A-DT
2.33

Opponents

Stephanie ThreattCurrently on SAN CARLOS TC/ARGUELLO PK CW6.5D
2.86
Combo rating 2.69 → 2.66Doubles result

Sep 19, 2026 · Doubles · 2D · Combo

Lost 1-6,5-7
−0.20

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.54
Tara Malik(partner)Currently on FREMONT HILLS CC CW5.5A
2.86

Opponents

Xiaoli ShangCurrently on CUESTA TC CW6.5B
2.48
Min YangCurrently on CUESTA TC CW6.5B
2.47
Combo rating 2.90 → 2.70Doubles result

Sep 5, 2026 · Doubles · 3D · Combo

Won 3-6,6-1,1-0
+0.12

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.54
Tara Malik(partner)Currently on FREMONT HILLS CC CW5.5A
2.86

Opponents

Samantha BuftonCurrently on ALPINE HILLS CW6.5A
2.89
Wendi KaramCurrently on ALPINE HILLS CW5.5A-DT
2.37
Combo rating 2.78 → 2.90Doubles result

Sep 2, 2026 · Doubles · 1D · Combo

Won 6-4,6-4
+0.21

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.54
Whitney Tabaie(partner)Currently on LADERA OAKS CW6.5A-DT
3.03

Opponents

Nicole BorauCurrently on FREMONT HILLS CC CW6.5A-DT
2.81
Betsy SchmittCurrently on FREMONT HILLS CC CW5.5A-DT
2.89
Combo rating 2.56 → 2.78Doubles result

Aug 16, 2026 · Doubles

Lost 4-6,1-6
−0.08

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.30
Gabrielle Sala(partner)Currently on FREMONT HILLS CC CW5.5A
2.36

Opponents

Weiping DiaoCurrently on SUNNYVALE MTC CW5.5A
2.57
Millie FengCurrently on SUNNYVALE MTC CW5.5A
2.49
Rating 2.38 → 2.30Doubles result

Aug 15, 2026 · Doubles

Lost 3-6,2-6
−0.16

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.30
Shab Nemati(partner)Currently on FREMONT HILLS CC CW5.5A-DT
2.45

Opponents

Kristin BrewCurrently on ALPINE HILLS CW5.5A-DT
2.32
Marjel ScheuerCurrently on ALPINE HILLS CW5.5A-DT
2.38
Rating 2.54 → 2.38Doubles result

Aug 14, 2026 · Doubles

Won 6-2,6-3
+0.13

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.30
Shab Nemati(partner)Currently on FREMONT HILLS CC CW5.5A-DT
2.45

Opponents

Lisa ReeseCurrently on BROADSTONE RC CW5.5A
2.34
Desiree BeckerCurrently on BROADSTONE RC CW5.5A
2.34
Rating 2.45 → 2.58Doubles result

May 31, 2026 · Singles

Lost 6-4,2-6,0-1
−0.14

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.30

Opponents

Krista Van HoveCurrently on STANFORD-CRA CW5.5A
2.30
Rating 2.18 → 2.04Singles result

May 12, 2026 · Singles

Lost 2-6,2-6
−0.01

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.30

Opponents

Hien NguyenCurrently on SUNNYVALE TC/SUNNYVALE MTC CW6.5C
2.87
Rating 1.94 → 1.93Singles result

May 8, 2026 · Singles · 1S

Lost 3-6,1-6
−0.01

Juliana’s side

Juliana CostelloCurrently on LADERA OAKS CW5.5A-DT
2.30

Opponents

Susan LeeCurrently on FREMONT HILLS CC CW6.5A-DT
2.78
Rating 1.95 → 1.94Singles result

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

Best match
+0.21
Sep 2 vs N. Borau / B. Schmitt
Worst match
−0.20
Sep 19 vs X. Shang / M. Yang
▲
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−0.002.29
Pulled toward the 2025 year-end level+0.022.09

More about Juliana

Juliana Costello has been a USTA NorCal 2.5 since 2025. The estimated dynamic rating is 2.30, up 0.01 this season, with a 7–12 record in 2026 across regular and combo play. Most frequent partner: Annette Fountain, 2–1 in 3 matches together.

Record

7–12
2026 season, 19 matches
2–7
2025 season, 9 matches
3
Longest winning streak
2–4
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, 2025–2026

2.5 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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