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

WTA6d inactive

Glicko-21.990

#50 overall·RD 68

Elo2.018#60 overall

Recent Form

60% Win Rate

Hard

Glicko-21.982#48

Elo1.883#50

Clay

Glicko-21.923#120

Elo1.639#378

Grass

Glicko-21.798#15

Elo1.610#43

Recent Matches

Diana Shnaider

French Open - Paris

2026-05-28Clay7-6(3) 6-1

Hanyu Guo

French Open - Paris

2026-05-25Clay4-6 7-6(1) 7-5

Jaqueline Cristian

Internationaux de Strasbourg - Strasbourg

2026-05-18Clay6-1 6-1

Oksana Selekhmeteva

Internationaux de Strasbourg - Strasbourg

2026-05-17Clay6-4 6-4

Renata Zarazua

Internationaux de Strasbourg - Strasbourg

2026-05-16Clay7-5 6-2

Yulia Putintseva

Trophee Clarins - Paris

2026-05-11Clay6-1 6-1

Iva Jovic

Internazionali BNL d'Italia - Rome

2026-05-07Clay7-6(5) 7-6(4)

Lucia Bronzetti

Internazionali BNL d'Italia - Rome

2026-05-05Clay6-3 5-7 6-4

Elise Mertens

Billie Jean King Cup, Qualifiers, BEL-USA 3-1

2026-04-10Clay7-6(3) 2-6 3-3 ret.

Yuliia Starodubtseva

Credit One Charleston Open - Charleston

2026-04-04Clay6-4 6-4

Peyton Stearns

Credit One Charleston Open - Charleston

2026-04-02Clay6-0 3-6 6-4

Janice Tjen

Credit One Charleston Open - Charleston

2026-04-01Clay6-2 6-1

Elvina Kalieva

Credit One Charleston Open - Charleston

2026-03-30Clay4-6 6-3 6-3

Mirra Andreeva

Miami Open - Miami

2026-03-19Hard6-1 6-7(3) 6-1

Magdalena Frech

Miami Open - Miami

2026-03-17Hard2-6 6-4 6-2

Kimberly Birrell

Austin 125 - Austin

2026-03-12Hard6-7(3) 7-6(3) 6-0

Kaja Juvan

Austin 125 - Austin

2026-03-11Hard5-7 6-4 6-2

Simona Waltert

Austin 125 - Austin

2026-03-09Hard7-6(6) 6-3

Zeynep Sonmez

BNP Paribas Open - Indian Wells

2026-03-04Hard7-6(7) 6-0

Clara Tauson

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-05Hard6-3 6-4

Leylah Annie Fernandez

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-03Hard6-3 6-2

Anastasia Pavlyuchenkova

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-01Hard6-3 6-3

Jessica Pegula

Australian Open - Melbourne

2026-01-22Hard6-0 6-2

Emiliana Arango

Australian Open - Melbourne

2026-01-19Hard6-3 6-2

Olga Danilovic

Hobart International - Hobart

2026-01-12Hard4-6 6-4 6-4

Madison Keys

Brisbane International - Brisbane

2026-01-06Hard6-4 6-3

Emiliana Arango

Brisbane International - Brisbane

2026-01-04Hard6-1 6-3

Linda Noskova

Toray Pan Pacific Open - Tokyo

2025-10-22Hard5-7 6-3 6-4

Cristina Bucsa

Toray Pan Pacific Open - Tokyo

2025-10-20Hard3-6 7-5 6-3

Ekaterina Alexandrova

Ningbo Open - Ningbo

2025-10-17Hard6-3 6-3

Liudmila Samsonova

Ningbo Open - Ningbo

2025-10-16Hard7-6(5) 6-1

Sofia Kenin

Ningbo Open - Ningbo

2025-10-13Hard6-1 6-0

Jaqueline Cristian

Wuhan Open - Wuhan

2025-10-07Hard6-7(6) 6-0 6-3

Eva Lys

China Open - Beijing

2025-09-30Hard4-6 6-1 6-2

Barbora Krejcikova

China Open - Beijing

2025-09-28Hard1-6 7-5 3-0 ret.

Elise Mertens

China Open - Beijing

2025-09-26Hard6-2 6-4

Han Shi

China Open - Beijing

2025-09-24Hard6-2 7-6(5)

Marketa Vondrousova

U.S. Open - New York

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

Magda Linette

U.S. Open - New York

2025-08-24Hard7-5 7-5

Ella Seidel

Cincinnati Open - Cincinnati

2025-08-12Hard6-4 2-6 7-6(6)

Caty McNally

Cincinnati Open - Cincinnati

2025-08-10Hard6-4 6-3

Marta Kostyuk

Omnium Banque Nationale - Montreal

2025-08-02Hard5-7 6-3 6-3

Mirra Andreeva

Omnium Banque Nationale - Montreal

2025-07-31Hard7-6(5) 6-4

Maya Joint

Omnium Banque Nationale - Montreal

2025-07-30Hard4-6 6-4 6-3

Caroline Dolehide

Mubadala Citi DC Open - Washington

2025-07-22Hard7-6(3) 5-7 6-3

Marketa Vondrousova

Wimbledon - London

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

Dayana Yastremska

Rothesay Open - Nottingham

2025-06-22Grass6-4 7-5

Rebecca Sramkova

Rothesay Open - Nottingham

2025-06-21Grass6-4 6-2

Katie Boulter

Rothesay Open - Nottingham

2025-06-20Grass6-3 3-6 6-4

Lin Zhu

Rothesay Open - Nottingham

2025-06-19Grass6-1 6-4

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