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

Daria Kasatkina

WTA4d inactive🔥 +53.8 HOT

Glicko-22.004

#41 overall·RD 69

Elo2.074#29 overall

Recent Form

60% Win Rate

Hard

Glicko-21.891#122

Elo1.835#79

Clay

Glicko-22.108#27

Elo1.858#35

Grass

Glicko-21.574#112

Elo1.637#29

Recent Matches

Aryna Sabalenka

French Open - Paris

2026-05-30Clay6-0 7-5

Susan Bandecchi

French Open - Paris

2026-05-28Clay7-5 7-6(11)

Zeynep Sonmez

French Open - Paris

2026-05-25Clay6-4 6-4

Jaqueline Cristian

Internationaux de Strasbourg - Strasbourg

2026-05-21Clay7-6(3) 3-6 6-2

Peyton Stearns

Internationaux de Strasbourg - Strasbourg

2026-05-19Clay6-1 6-3

Liudmila Samsonova

Internationaux de Strasbourg - Strasbourg

2026-05-18Clay7-5 6-3

Anastasia Zakharova

Internationaux de Strasbourg - Strasbourg

2026-05-17Clay6-4 6-2

Valentina Steiner

Internationaux de Strasbourg - Strasbourg

2026-05-16Clay6-3 6-1

Caty McNally

Internazionali BNL d'Italia - Rome

2026-05-06Clay6-2 6-3

Tamara Korpatsch

Catalonia Open Solgirones - La Bisbal D'Emporda

2026-05-03Clay2-6 6-3 7-5

Sara Sorribes Tormo

Catalonia Open Solgirones - La Bisbal D'Emporda

2026-05-02Clay6-2 6-0

Alina Charaeva

Catalonia Open Solgirones - La Bisbal D'Emporda

2026-05-01Clay4-6 6-0 6-4

Laura Pigossi

Catalonia Open Solgirones - La Bisbal D'Emporda

2026-04-30Clay6-2 6-2

Emiliana Arango

Catalonia Open Solgirones - La Bisbal D'Emporda

2026-04-28Clay6-2 3-6 7-6(5)

Daria Snigur

Mutua Madrid Open - Madrid

2026-04-22Clay6-3 3-6 7-6(13)

Ann Li

Open Capfinances Rouen Metropole - Rouen

2026-04-13Clay6-7(6) 6-2 6-4

Laura Siegemund

Dubai Duty Free Championships - Dubai

2026-02-16Hard6-2 6-3

Iga Swiatek

Qatar TotalEnergies Open - Doha

2026-02-11Hard5-7 6-1 6-1

Elise Mertens

Qatar TotalEnergies Open - Doha

2026-02-10Hard6-4 6-0

Moyuka Uchijima

Qatar TotalEnergies Open - Doha

2026-02-08Hard4-6 6-3 6-0

Simona Waltert

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-02Hard7-6(5) 3-6 6-4

Nikola Bartunkova

Australian Open - Melbourne

2026-01-20Hard7-6(7) 0-6 6-3

Jaqueline Cristian

Adelaide International - Adelaide

2026-01-14Hard6-4 6-0

Maria Sakkari

Adelaide International - Adelaide

2026-01-12Hard7-6(2) 6-4

Anastasia Potapova

Brisbane International - Brisbane

2026-01-04Hard7-5 4-6 6-4

Sonay Kartal

China Open - Beijing

2025-09-27Hard6-3 6-0

Katerina Siniakova

Korea Open - Seoul

2025-09-18Hard7-6(2) 6-2

Naomi Osaka

U.S. Open - New York

2025-08-30Hard6-0 4-6 6-3

Kamilla Rakhimova

U.S. Open - New York

2025-08-28Hard6-2 4-6 7-5

Elena Gabriela Ruse

U.S. Open - New York

2025-08-25Hard7-5 6-1

Lucia Bronzetti

Cincinnati Open - Cincinnati

2025-08-10Hard6-3 1-6 6-4

Marta Kostyuk

Omnium Banque Nationale - Montreal

2025-07-31Hard3-6 6-3 7-6(4)

Anna Blinkova

Omnium Banque Nationale - Montreal

2025-07-29Hard6-1 6-4

Liudmila Samsonova

Wimbledon - London

2025-07-05Grass6-2 6-3

Irina-Camelia Begu

Wimbledon - London

2025-07-03Grass6-2 4-6 6-1

Emiliana Arango

Wimbledon - London

2025-07-01Grass7-5 6-3

Lulu Sun

Rothesay International - Eastbourne

2025-06-23Grass7-5 2-6 6-3

Xinyu Wang

Berlin Ladies Open - Berlin

2025-06-17Grass6-3 6-2

Sonay Kartal

LTA London Championships - London

2025-06-09Grass6-1 3-6 6-3

Mirra Andreeva

French Open - Paris

2025-06-02Clay6-3 7-5

Paula Badosa Gibert

French Open - Paris

2025-05-31Clay6-1 7-5

Leolia Jeanjean

French Open - Paris

2025-05-29Clay6-4 6-2

Katerina Siniakova

French Open - Paris

2025-05-26Clay6-1 3-6 6-2

Emma Raducanu

Internationaux de Strasbourg - Strasbourg

2025-05-19Clay6-1 6-3

Marta Kostyuk

Internazionali BNL d'Italia - Rome

2025-05-09Clay6-4 6-2

Ekaterina Alexandrova

Mutua Madrid Open - Madrid

2025-04-27Clay6-3 7-6(3)

Alycia Parks

Mutua Madrid Open - Madrid

2025-04-25Clay6-2 7-5

Sofia Kenin

Credit One Charleston Open - Charleston

2025-04-03Clay6-3 7-6(7)

Lauren Davis

Credit One Charleston Open - Charleston

2025-04-02Clay6-1 6-1

Hailey Baptiste

Miami Open - Miami

2025-03-20Hard3-6 6-4 7-5

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