What is VOPO in tennis betting?

VOPO (Value Over Pinnacle Odds) is the difference between Tennis Glicko's internal win probability (average of Glicko-2 and Elo models) and the implied probability from Pinnacle's odds. A positive VOPO means the market is undervaluing a player.

What is Green EV in tennis betting?

Green EV is Tennis Glicko's high-conviction value signal. It triggers when VOPO exceeds 12% AND the internal win probability is above 50% — indicating the market is significantly mispricing a player.

How accurate is Tennis Glicko?

Tennis Glicko has 72.8% predictive accuracy over the last 30 days, with a Brier Score of 0.1775 — a standard probabilistic calibration metric used in forecasting.

Why use Glicko-2 instead of ATP rankings for tennis predictions?

ATP rankings are a lagging indicator — they ignore surface specialization, injury returns, scheduling fatigue, and form swings. Glicko-2 updates after every match, adjusts for opponent quality, and models rating uncertainty, making it significantly more accurate for predicting match outcomes.

Rankings

Mccartney Kessler

WOMEN

Age27

BirthplaceLawrenceville, Georgia

Height1.75m

Weight—

Best HandRight

Backhand—

Recent Form

Win Rate:38%

Fatigue:0/100

Inactive:23 Days

Overall

Glicko-21.997

#50RD 67

Elo2.044

#48

Hard

Glicko-21.982

#53

Elo1.883

#47

Clay

Glicko-21.923

#125

Elo1.639

#389

Grass

Glicko-21.625

#85

Elo1.601

#56

Surface Record

HardClayGrass

20265-65-53-4

202524-150-56-2

20249-90-10-1

Recent Matches

Aryna SabalenkaWimbledon - London2026-07-01Grass6-1 7-6(9)

Oleksandra OliynykovaWimbledon - London2026-06-29Grass6-0 6-0

Madison KeysLexus Eastbourne Open - Eastbourne2026-06-25Grass6-3 6-1

Anhelina KalininaLexus Eastbourne Open - Eastbourne2026-06-24Grass6-4 6-3

Daria KasatkinaLexus Eastbourne Open - Eastbourne2026-06-22Grass6-3 7-6(3)

Katie VolynetsLexus Nottingham Open - Nottingham2026-06-16Grass6-3 6-3

Karolina PliskovaThe HSBC Championships - London2026-06-08Grass6-7(1) 6-3 6-4

Diana ShnaiderFrench Open - Paris2026-05-28Clay7-6(3) 6-1

Hanyu GuoFrench Open - Paris2026-05-25Clay4-6 7-6(1) 7-5

Jaqueline CristianInternationaux de Strasbourg - Strasbourg2026-05-18Clay6-1 6-1

Oksana SelekhmetevaInternationaux de Strasbourg - Strasbourg2026-05-17Clay6-4 6-4

Renata ZarazuaInternationaux de Strasbourg - Strasbourg2026-05-16Clay7-5 6-2

Yulia PutintsevaTrophee Clarins - Paris2026-05-11Clay6-1 6-1

Iva JovicInternazionali BNL d'Italia - Rome2026-05-07Clay7-6(5) 7-6(4)

Lucia BronzettiInternazionali BNL d'Italia - Rome2026-05-05Clay6-3 5-7 6-4

Elise MertensBillie Jean King Cup, Qualifiers, BEL-USA 3-12026-04-10Clay7-6(3) 2-6 3-3 ret.

Yuliia StarodubtsevaCredit One Charleston Open - Charleston2026-04-04Clay6-4 6-4

Peyton StearnsCredit One Charleston Open - Charleston2026-04-02Clay6-0 3-6 6-4

Janice TjenCredit One Charleston Open - Charleston2026-04-01Clay6-2 6-1

Elvina KalievaCredit One Charleston Open - Charleston2026-03-30Clay4-6 6-3 6-3

Mirra AndreevaMiami Open - Miami2026-03-19Hard6-1 6-7(3) 6-1

Magdalena FrechMiami Open - Miami2026-03-17Hard2-6 6-4 6-2

Kimberly BirrellAustin 125 - Austin2026-03-12Hard6-7(3) 7-6(3) 6-0

Kaja JuvanAustin 125 - Austin2026-03-11Hard5-7 6-4 6-2

Simona WaltertAustin 125 - Austin2026-03-09Hard7-6(6) 6-3

Zeynep SonmezBNP Paribas Open - Indian Wells2026-03-04Hard7-6(7) 6-0

Clara TausonMubadala Abu Dhabi Open - Abu Dhabi2026-02-05Hard6-3 6-4

Leylah Annie FernandezMubadala Abu Dhabi Open - Abu Dhabi2026-02-03Hard6-3 6-2

Anastasia PavlyuchenkovaMubadala Abu Dhabi Open - Abu Dhabi2026-02-01Hard6-3 6-3

Jessica PegulaAustralian Open - Melbourne2026-01-22Hard6-0 6-2

Emiliana ArangoAustralian Open - Melbourne2026-01-19Hard6-3 6-2

Olga DanilovicHobart International - Hobart2026-01-12Hard4-6 6-4 6-4

Madison KeysBrisbane International - Brisbane2026-01-06Hard6-4 6-3

Emiliana ArangoBrisbane International - Brisbane2026-01-04Hard6-1 6-3

Linda NoskovaToray Pan Pacific Open - Tokyo2025-10-22Hard5-7 6-3 6-4

Cristina BucsaToray Pan Pacific Open - Tokyo2025-10-20Hard3-6 7-5 6-3

Ekaterina AlexandrovaNingbo Open - Ningbo2025-10-17Hard6-3 6-3

Liudmila SamsonovaNingbo Open - Ningbo2025-10-16Hard7-6(5) 6-1

Sofia KeninNingbo Open - Ningbo2025-10-13Hard6-1 6-0

Jaqueline CristianWuhan Open - Wuhan2025-10-07Hard6-7(6) 6-0 6-3

Eva LysChina Open - Beijing2025-09-30Hard4-6 6-1 6-2

Barbora KrejcikovaChina Open - Beijing2025-09-28Hard1-6 7-5 3-0 ret.

Elise MertensChina Open - Beijing2025-09-26Hard6-2 6-4

Han ShiChina Open - Beijing2025-09-24Hard6-2 7-6(5)

Marketa VondrousovaU.S. Open - New York2025-08-27Hard7-6(7) 6-2

Magda LinetteU.S. Open - New York2025-08-24Hard7-5 7-5

Ella SeidelCincinnati Open - Cincinnati2025-08-12Hard6-4 2-6 7-6(6)

Caty McNallyCincinnati Open - Cincinnati2025-08-10Hard6-4 6-3

Marta KostyukOmnium Banque Nationale - Montreal2025-08-02Hard5-7 6-3 6-3

Mirra AndreevaOmnium Banque Nationale - Montreal2025-07-31Hard7-6(5) 6-4

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