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

Tatjana Maria

WOMENHot

Age38

BirthplaceBad Saulgau, Germany

Height1.72m

Weight62kg

Best HandRight

Backhand—

Recent Form

Win Rate:75%

Fatigue:3/100

Inactive:12 Days

Overall

Glicko-21.975

#66RD 61

Elo2.034

#52

Hard

Glicko-21.695

#461

Elo1.606

#547

Clay

Glicko-21.818

#245

Elo1.591

#533

Grass

Glicko-21.870

#13

Elo1.718

#18

Surface Record

HardClayGrass

20261-96-78-4

20257-132-65-2

20248-155-91-3

202313-1710-61-3

20226-65-16-3

20202-51-0—

Recent Matches

Katie VolynetsHall of Fame Open - Newport2026-07-12Grass6-2 6-4

Mananchaya SawangkaewHall of Fame Open - Newport2026-07-11Grass6-2 6-1

Lucrezia StefaniniHall of Fame Open - Newport2026-07-10Grass6-1 6-0

Katherine SebovHall of Fame Open - Newport2026-07-09Grass6-3 6-3

Olivia LincerHall of Fame Open - Newport2026-07-08Grass6-3 6-2

Iva JovicWimbledon - London2026-07-01Grass6-1 6-2

Yulia PutintsevaWimbledon - London2026-06-29Grass6-4 6-4

Madison KeysLexus Eastbourne Open - Eastbourne2026-06-27Grass7-5 6-4

Jelena OstapenkoLexus Eastbourne Open - Eastbourne2026-06-26Grass6-1 1-2 ret.

Tereza ValentovaLexus Eastbourne Open - Eastbourne2026-06-25Grass6-3 7-5

Anastasia ZakharovaLexus Eastbourne Open - Eastbourne2026-06-24Grass6-2 6-1

Jasmine PaoliniLexus Eastbourne Open - Eastbourne2026-06-23Grass6-4 6-3

Marie BouzkovaLexus Nottingham Open - Nottingham2026-06-19Grass7-5 6-0

Dayana YastremskaLexus Nottingham Open - Nottingham2026-06-17Grass6-1 6-2

Janice TjenLexus Nottingham Open - Nottingham2026-06-15Grass6-3 6-2

Elena RybakinaThe HSBC Championships - London2026-06-12Grass6-7(4) 7-5 6-0

Maria SakkariThe HSBC Championships - London2026-06-09Grass6-3 6-3

Yuriko MiyazakiThe HSBC Championships - London2026-06-07Grass6-2 1-6 6-2

Kamilla RakhimovaThe HSBC Championships - London2026-06-07Grass6-4 6-3

Rebeka MasarovaLexus Birmingham Open - Birmingham2026-06-04Grass6-4 6-3

Linda FruhvirtovaLexus Birmingham Open - Birmingham2026-06-03Grass6-0 6-1

Elise MertensFrench Open - Paris2026-05-25Clay7-5 6-0

Yasmine KabbajGrand Prix De SAR La Princesse Lalla Meryem - Rabat2026-05-20Clay6-2 6-4

Diae El JardiGrand Prix De SAR La Princesse Lalla Meryem - Rabat2026-05-19Clay6-2 6-4

Sorana CirsteaInternazionali BNL d'Italia - Rome2026-05-07Clay6-2 6-0

Magda LinetteInternazionali BNL d'Italia - Rome2026-05-06Clay6-0 6-3

Laura SamsonMutua Madrid Open - Madrid2026-04-21Clay6-4 6-2

Marta KostyukOpen Capfinances Rouen Metropole - Rouen2026-04-18Clay6-3 6-0

Iryna ShymanovichOpen Capfinances Rouen Metropole - Rouen2026-04-17Clay7-6(5) 6-2

Dominika SalkovaOpen Capfinances Rouen Metropole - Rouen2026-04-16Clay6-3 6-2

Elsa JacquemotOpen Capfinances Rouen Metropole - Rouen2026-04-15Clay6-4 6-3

Sloane StephensUpper Austria Ladies Linz - Linz2026-04-06Clay1-6 7-6(5) 6-4

Katarzyna KawaCopa Colsanitas - Bogota2026-04-01Clay6-3 6-3

Valentina Mediorreal AriasCopa Colsanitas - Bogota2026-03-30Clay6-2 6-1

Hailey BaptisteMiami Open - Miami2026-03-19Hard7-5 6-2

Sorana CirsteaBNP Paribas Open - Indian Wells2026-03-04Hard6-4 4-6 6-3

Magda LinetteMerida Open Akron - Merida2026-02-24Hard7-6(3) 6-3

Kimberly BirrellDubai Duty Free Championships - Dubai2026-02-15Hard6-4 3-6 7-5

Emma NavarroQatar TotalEnergies Open - Doha2026-02-09Hard7-5 6-1

Katie VolynetsOstrava Open - Ostrava2026-02-03I.Hard7-5 6-1

Tatiana ProzorovaPhilippine Women's Open - Manila2026-01-28Hard7-6(2) 6-4

Leolia JeanjeanPhilippine Women's Open - Manila2026-01-27Hard7-6(5) 6-4

Petra MarcinkoAustralian Open - Melbourne2026-01-19Hard6-3 7-5

Anna BondarHobart International - Hobart2026-01-14Hard7-6(7) 7-5

Venus WilliamsHobart International - Hobart2026-01-13Hard6-4 6-3

Emerson JonesBrisbane International - Brisbane2026-01-05Hard6-3 6-3

Irene BurilloQuito Open - Quito2025-12-02Clay6-1 6-7(6) 6-4

Veronika ErjavecGuangzhou Open - Guangzhou2025-10-20Hard6-4 6-7(7) 6-2

Aliaksandra SasnovichNingbo Open - Ningbo2025-10-11Hard6-0 6-1

Viktorija GolubicSuzhou WTA 125 - Suzhou2025-10-04Hard6-3 6-3

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