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

Karolina Pliskova

WTA14d inactive

Glicko-22.048

#26 overall·RD 78

Elo2.073#30 overall

Recent Form

60% Win Rate

Hard

Glicko-21.904#108

Elo1.845#68

Clay

Glicko-22.135#22

Elo1.775#106

Grass

Glicko-21.502#157

Elo1.569#67

Recent Matches

Marina Bassols Ribera

French Open - Paris

2026-05-20Clay6-3 6-2

Yeon Woo Ku

French Open - Paris

2026-05-19Clay0-6 6-3 6-1

Elena Rybakina

Internazionali BNL d'Italia - Rome

2026-05-11Clay6-0 6-2

Laura Siegemund

Internazionali BNL d'Italia - Rome

2026-05-10Clay6-1 6-4

Jaqueline Cristian

Internazionali BNL d'Italia - Rome

2026-05-08Clay6-7(5) 7-6(2) 6-4

Jessica Bouzas Maneiro

Internazionali BNL d'Italia - Rome

2026-05-06Clay4-6 6-3 7-5

Anastasia Potapova

Mutua Madrid Open - Madrid

2026-04-29Clay6-1 6-7(4) 6-3

Solana Sierra

Mutua Madrid Open - Madrid

2026-04-27Clay6-4 6-3

Elise Mertens

Mutua Madrid Open - Madrid

2026-04-26Clay7-5 2-6 7-6(3)

Maria Sakkari

Mutua Madrid Open - Madrid

2026-04-24Clay6-4 7-6(6)

Sinja Kraus

Mutua Madrid Open - Madrid

2026-04-22Clay2-6 6-1 6-4

Donna Vekic

Upper Austria Ladies Linz - Linz

2026-04-10Clay7-5 6-4

Ekaterina Alexandrova

Upper Austria Ladies Linz - Linz

2026-04-09Clay6-1 6-3

Aliaksandra Sasnovich

Upper Austria Ladies Linz - Linz

2026-04-07Clay6-4 6-4

Karolina Muchova

Qatar TotalEnergies Open - Doha

2026-02-11Hard5-2 ret.

Amanda Anisimova

Qatar TotalEnergies Open - Doha

2026-02-09Hard5-7 7-6(3) 4-1 ret.

Solana Sierra

Qatar TotalEnergies Open - Doha

2026-02-08Hard6-1 6-2

Anastasia Zakharova

Transylvania Open - Cluj-Napoca

2026-02-02I.Hard4-6 6-2 6-2

Madison Keys

Australian Open - Melbourne

2026-01-24Hard6-3 6-3

Janice Tjen

Australian Open - Melbourne

2026-01-22Hard6-4 6-4

Sloane Stephens

Australian Open - Melbourne

2026-01-20Hard7-6(7) 6-2

Lina Gjorcheska

Samsun Open - Samsun

2025-10-01Hard6-4 6-3

Polina Iatcenko

Full Protein Caldas da Rainha Ladies Open - Caldas da Rainha

2025-09-17Hard5-7 6-4 6-4

Tessah Andrianjafitrimo

Full Protein Caldas da Rainha Ladies Open - Caldas da Rainha

2025-09-15Hard6-1 4-6 7-5

Jasmine Paolini

U.S. Open - New York

2024-08-29Hard0-0 ret.

Mayar Sherif

U.S. Open - New York

2024-08-27Hard6-3 0-6 7-5

Mirra Andreeva

Western & Southern Open - Cincinnati

2024-08-15Hard6-2 6-3

Viktoriya Tomova

Western & Southern Open - Cincinnati

2024-08-13Hard7-6(3) 7-6(3)

Jessica Pegula

National Bank Open - Toronto

2024-08-07Hard7-5 6-4

Nadia Podoroska

National Bank Open - Toronto

2024-08-06Hard6-4 7-6(10)

Yafan Wang

Mubadala Citi DC Open - Washington

2024-07-29Hard5-7 6-3 6-0

Diana Shnaider

Wimbledon - London

2024-07-01Grass4-6 6-4 7-5

Caroline Dolehide

Rothesay Classic - Birmingham

2024-06-18Grass2-6 6-3 7-6(5)

Diane Parry

Rothesay Open - Nottingham

2024-06-16Grass6-7(9) 6-1 6-4

Katie Boulter

Rothesay Open - Nottingham

2024-06-16Grass4-6 6-3 6-2

Ons Jabeur

Rothesay Open - Nottingham

2024-06-15Grass7-6(8) 6-7(3) 7-5

Heather Watson

Rothesay Open - Nottingham

2024-06-12Grass6-4 6-4

Alycia Parks

Rothesay Open - Nottingham

2024-06-10Grass6-4 6-4

Elina Svitolina

French Open - Paris

2024-05-27Clay3-6 6-4 6-2

Clara Burel

Internationaux de Strasbourg - Strasbourg

2024-05-19Clay7-5 0-6 6-1

Sloane Stephens

Open Capfinances Rouen Metropole - Rouen

2024-04-17Clay6-3 6-2

Polina Kudermetova

Open Capfinances Rouen Metropole - Rouen

2024-04-15Clay7-5 1-6 7-5

Donna Vekic

Miami Open - Miami

2024-03-20Hard6-4 2-6 6-2

Anna Blinkova

BNP Paribas Open - Indian Wells

2024-03-07Hard6-1 2-6 6-4

Cori Gauff

Dubai Duty Free Championships - Dubai

2024-02-21Hard2-6 6-4 6-3

Ashlyn Krueger

Dubai Duty Free Championships - Dubai

2024-02-20Hard6-7(2) 6-3 6-4

Shuai Zhang

Dubai Duty Free Championships - Dubai

2024-02-19Hard6-3 7-5

Naomi Osaka

Qatar TotalEnergies Open - Doha

2024-02-15Hard7-6(6) 7-6(5)

Linda Noskova

Qatar TotalEnergies Open - Doha

2024-02-14Hard3-6 7-5 6-1

Anastasia Potapova

Qatar TotalEnergies Open - Doha

2024-02-13Hard6-1 5-7 6-4

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