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

Marketa Vondrousova

WTA141d inactive

Glicko-22.100

#18 overall·RD 89

Elo2.175#18 overall

Recent Form

40% Win Rate

Hard

Glicko-22.043#21

Elo1.969#20

Clay

Glicko-22.094#28

Elo1.852#40

Grass

Glicko-21.963#2

Elo1.749#6

Recent Matches

Liudmila Samsonova

Adelaide International - Adelaide

2026-01-13Hard6-1 4-6 6-2

Magdalena Frech

Brisbane International - Brisbane

2026-01-05Hard7-5 6-7(3) 7-6(0)

Karolina Muchova

Toray Pan Pacific Open - Tokyo

2025-10-20Hard6-2 1-0 ret.

Karolina Muchova

Ningbo Open - Ningbo

2025-10-14Hard6-4 6-3

Elena Rybakina

U.S. Open - New York

2025-08-31Hard6-4 5-7 6-2

Jasmine Paolini

U.S. Open - New York

2025-08-29Hard7-6(4) 6-1

Mccartney Kessler

U.S. Open - New York

2025-08-27Hard7-6(7) 6-2

Oksana Selekhmeteva

U.S. Open - New York

2025-08-24Hard6-3 7-6(3)

Aryna Sabalenka

Cincinnati Open - Cincinnati

2025-08-09Hard7-5 6-1

Jaqueline Cristian

Cincinnati Open - Cincinnati

2025-08-07Hard6-3 6-1

Marta Kostyuk

Omnium Banque Nationale - Montreal

2025-07-29Hard2-6 6-3 6-2

Alexandra Eala

Omnium Banque Nationale - Montreal

2025-07-27Hard3-6 6-1 6-2

Emma Raducanu

Wimbledon - London

2025-07-02Grass6-3 6-3

Mccartney Kessler

Wimbledon - London

2025-06-30Grass6-1 7-6(3)

Xinyu Wang

Berlin Ladies Open - Berlin

2025-06-22Grass7-6(10) 4-6 6-2

Aryna Sabalenka

Berlin Ladies Open - Berlin

2025-06-21Grass6-2 6-4

Ons Jabeur

Berlin Ladies Open - Berlin

2025-06-20Grass6-4 6-1

Diana Shnaider

Berlin Ladies Open - Berlin

2025-06-19Grass6-3 6-7(3) 6-3

Madison Keys

Berlin Ladies Open - Berlin

2025-06-17Grass7-5 7-6(6)

Jessica Pegula

French Open - Paris

2025-05-31Clay3-6 6-4 6-2

Magdalena Frech

French Open - Paris

2025-05-29Clay6-0 4-6 6-3

Oksana Selekhmeteva

French Open - Paris

2025-05-27Clay6-4 6-4

Mirra Andreeva

Dubai Duty Free Championships - Dubai

2025-02-19Hard7-5 6-0

Caroline Garcia

Dubai Duty Free Championships - Dubai

2025-02-16Hard6-2 6-2

Elina Svitolina

Qatar TotalEnergies Open - Doha

2025-02-10Hard0-6 6-2 7-5

Belinda Bencic

Mubadala Abu Dhabi Open - Abu Dhabi

2025-02-06Hard7-5 6-3

Yulia Putintseva

Mubadala Abu Dhabi Open - Abu Dhabi

2025-02-05Hard6-2 6-3

Emma Raducanu

Mubadala Abu Dhabi Open - Abu Dhabi

2025-02-04Hard6-3 6-4

Diana Shnaider

Adelaide International - Adelaide

2025-01-08Hard4-6 1-1 ret.

Anastasia Pavlyuchenkova

Adelaide International - Adelaide

2025-01-06Hard6-4 6-7(4) 6-2

Jessica Bouzas Maneiro

Wimbledon - London

2024-07-02Grass6-4 6-2

Anna Kalinskaya

Berlin Ladies Open - Berlin

2024-06-20Grass5-5 ret.

Rebeka Masarova

Berlin Ladies Open - Berlin

2024-06-17Grass6-4 6-3

Iga Swiatek

French Open - Paris

2024-06-04Clay6-0 6-2

Olga Danilovic

French Open - Paris

2024-06-02Clay6-4 6-2

Chloe Paquet

French Open - Paris

2024-05-31Clay6-1 6-3

Katie Volynets

French Open - Paris

2024-05-30Clay0-6 6-1 6-4

Rebeka Masarova

French Open - Paris

2024-05-27Clay6-1 6-3

Anhelina Kalinina

Internationaux de Strasbourg - Strasbourg

2024-05-24Clay5-7 6-3 6-2

Magdalena Frech

Internationaux de Strasbourg - Strasbourg

2024-05-22Clay5-7 6-1 6-0

Sorana Cirstea

Internazionali BNL d'Italia - Rome

2024-05-11Clay7-6(1) 6-3

Ana Bogdan

Internazionali BNL d'Italia - Rome

2024-05-09Clay6-2 3-6 6-4

Mirra Andreeva

Mutua Madrid Open - Madrid

2024-04-28Clay7-5 6-1

Shelby Rogers

Mutua Madrid Open - Madrid

2024-04-26Clay6-1 6-3

Marta Kostyuk

Porsche Tennis Grand Prix - Stuttgart

2024-04-20Clay7-6(2) 6-2

Aryna Sabalenka

Porsche Tennis Grand Prix - Stuttgart

2024-04-19Clay3-6 6-3 7-5

Anastasia Potapova

Porsche Tennis Grand Prix - Stuttgart

2024-04-18Clay7-6(5) 6-1

Donna Vekic

Porsche Tennis Grand Prix - Stuttgart

2024-04-16Clay6-4 6-3

Bernarda Pera

BNP Paribas Open - Indian Wells

2024-03-08Hard6-0 6-2

Sorana Cirstea

Dubai Duty Free Championships - Dubai

2024-02-22Hard2-6 7-6(1) 6-2

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