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

Dayana Yastremska

WTA9d inactive🔥 +49.7 HOT

Glicko-21.977

#58 overall·RD 69

Elo1.967#86 overall

Recent Form

80% Win Rate

Hard

Glicko-21.893#119

Elo1.794#116

Clay

Glicko-21.987#71

Elo1.773#110

Grass

Glicko-21.746#27

Elo1.623#37

Recent Matches

Jasmine Paolini

French Open - Paris

2026-05-25Clay7-5 6-3

Jessica Bouzas Maneiro

Parma Ladies Open - Parma

2026-05-16Clay7-6(5) 6-7(4) 7-6(5)

Barbora Krejcikova

Parma Ladies Open - Parma

2026-05-16Clay6-3 6-3

Solana Sierra

Parma Ladies Open - Parma

2026-05-14Clay6-3 7-5

Hanne Vandewinkel

Parma Ladies Open - Parma

2026-05-13Clay6-3 6-2

Victoria Bosio

Parma Ladies Open - Parma

2026-05-12Clay7-6(3) 6-3

Anastasia Zakharova

Internazionali BNL d'Italia - Rome

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

Solana Sierra

Mutua Madrid Open - Madrid

2026-04-22Clay7-6(10) 7-6(8)

Elena Gabriela Ruse

Upper Austria Ladies Linz - Linz

2026-04-08Clay4-6 6-4 6-4

Ann Li

Upper Austria Ladies Linz - Linz

2026-04-07Clay7-5 4-6 6-3

Belinda Bencic

Credit One Charleston Open - Charleston

2026-04-01Clay6-2 6-7(5) 6-3

Anastasia Zakharova

Credit One Charleston Open - Charleston

2026-03-30Clay7-5 6-2

Jelena Ostapenko

Miami Open - Miami

2026-03-20Hard6-4 6-4

Ashlyn Krueger

Miami Open - Miami

2026-03-19Hard2-6 6-4 7-5

Alexandra Eala

BNP Paribas Open - Indian Wells

2026-03-06Hard7-5 4-6 7-5

Shuai Zhang

BNP Paribas Open - Indian Wells

2026-03-04Hard6-3 6-2

Marina Stakusic

Merida Open Akron - Merida

2026-02-23Hard6-4 6-3

Janice Tjen

Dubai Duty Free Championships - Dubai

2026-02-15Hard6-4 6-1

Elina Svitolina

Qatar TotalEnergies Open - Doha

2026-02-10Hard6-1 6-4

Cristina Bucsa

Qatar TotalEnergies Open - Doha

2026-02-09Hard6-4 4-6 7-6(5)

Ekaterina Alexandrova

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-04Hard6-3 6-0

Beatriz Haddad Maia

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-02Hard6-2 7-5

Elena Gabriela Ruse

Australian Open - Melbourne

2026-01-18Hard6-4 7-5

Katerina Siniakova

Adelaide International - Adelaide

2026-01-13Hard6-0 6-1

Jessica Pegula

Brisbane International - Brisbane

2026-01-08Hard5-7 6-2 6-3

Leylah Annie Fernandez

Brisbane International - Brisbane

2026-01-07Hard6-1 6-2

Talia Gibson

Brisbane International - Brisbane

2026-01-05Hard7-6(3) 7-6(4)

Diana Shnaider

Toray Pan Pacific Open - Tokyo

2025-10-21Hard6-3 6-1

Elena Rybakina

Ningbo Open - Ningbo

2025-10-16Hard6-4 6-7(6) 6-3

Victoria Mboko

Ningbo Open - Ningbo

2025-10-14Hard6-3 7-6(3)

Laura Siegemund

Wuhan Open - Wuhan

2025-10-06Hard7-5 4-6 4-1 ret.

Jessica Bouzas Maneiro

China Open - Beijing

2025-09-27Hard7-5 6-4

Anastasia Pavlyuchenkova

U.S. Open - New York

2025-08-25Hard6-7(5) 7-6(5) 6-4

Viktoriya Tomova

Cincinnati Open - Cincinnati

2025-08-10Hard6-4 2-6 6-2

Elena Rybakina

Omnium Banque Nationale - Montreal

2025-08-02Hard5-7 6-2 7-5

Emma Navarro

Omnium Banque Nationale - Montreal

2025-07-31Hard7-5 6-4

Maria Camila Osorio Serrano

Omnium Banque Nationale - Montreal

2025-07-29Hard3-6 7-6(5) 6-2

Lois Boisson

European Open - Hamburg

2025-07-19Clay6-1 7-6(5)

Dalma Galfi

European Open - Hamburg

2025-07-18Clay7-6(1) 3-6 6-2

Diane Parry

European Open - Hamburg

2025-07-17Clay6-1 6-4

Jule Niemeier

European Open - Hamburg

2025-07-16Clay6-4 6-3

Jessica Bouzas Maneiro

Wimbledon - London

2025-07-05Grass6-1 2-6 6-3

Anastasia Zakharova

Wimbledon - London

2025-07-03Grass5-7 7-5 7-6(8)

Cori Gauff

Wimbledon - London

2025-07-01Grass7-6(3) 6-1

Alexandra Eala

Rothesay International - Eastbourne

2025-06-26Grass6-1 6-2

Francesca Jones

Rothesay International - Eastbourne

2025-06-25Grass6-2 6-1

Magda Linette

Rothesay International - Eastbourne

2025-06-24Grass6-4 4-2 ret.

Mccartney Kessler

Rothesay Open - Nottingham

2025-06-22Grass6-4 7-5

Magda Linette

Rothesay Open - Nottingham

2025-06-21Grass6-4 6-4

Leylah Annie Fernandez

Rothesay Open - Nottingham

2025-06-20Grass6-3 7-6(6)

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