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

Magda Linette

WTA5d inactive

Glicko-21.983

#55 overall·RD 73

Elo2.048#42 overall

Recent Form

40% Win Rate

Hard

Glicko-21.959#59

Elo1.890#44

Clay

Glicko-21.992#67

Elo1.774#107

Grass

Glicko-21.532#135

Elo1.506#189

Recent Matches

Iga Swiatek

French Open - Paris

2026-05-29Clay6-4 6-4

Jelena Ostapenko

French Open - Paris

2026-05-27Clay6-2 2-6 6-2

Tereza Valentova

French Open - Paris

2026-05-24Clay5-7 6-4 7-6(9)

Tatjana Maria

Internazionali BNL d'Italia - Rome

2026-05-06Clay6-0 6-3

Iva Jovic

Mutua Madrid Open - Madrid

2026-04-23Clay6-4 6-1

Robin Montgomery

Mutua Madrid Open - Madrid

2026-04-21Clay6-4 6-3

Marta Kostyuk

Billie Jean King Cup, Qualifiers, POL-UKR 0-4

2026-04-10Clay6-4 6-0

Alexandra Eala

Miami Open - Miami

2026-03-21Hard6-3 7-6(2)

Iga Swiatek

Miami Open - Miami

2026-03-19Hard1-6 7-5 6-3

Varvara Gracheva

Miami Open - Miami

2026-03-17Hard2-6 6-2 6-0

Ashlyn Krueger

BNP Paribas Open - Indian Wells

2026-03-05Hard6-1 6-4

Victoria Jimenez Kasintseva

Merida Open Akron - Merida

2026-02-25Hard5-7 7-6(5) 7-5

Tatjana Maria

Merida Open Akron - Merida

2026-02-24Hard7-6(3) 6-3

Clara Tauson

Dubai Duty Free Championships - Dubai

2026-02-18Hard6-4 6-2

Ekaterina Alexandrova

Dubai Duty Free Championships - Dubai

2026-02-17Hard6-2 4-6 6-1

Lulu Sun

Dubai Duty Free Championships - Dubai

2026-02-15Hard4-6 6-4 6-1

Mirra Andreeva

Qatar TotalEnergies Open - Doha

2026-02-09Hard7-6(0) 6-1

Sonay Kartal

Qatar TotalEnergies Open - Doha

2026-02-08Hard6-4 3-6 6-3

Karolina Muchova

Australian Open - Melbourne

2026-01-23Hard6-1 6-1

Ann Li

Australian Open - Melbourne

2026-01-21Hard6-3 6-3

Emma Navarro

Australian Open - Melbourne

2026-01-19Hard3-6 6-3 6-3

Iva Jovic

Hobart International - Hobart

2026-01-15Hard6-3 6-7(5) 6-2

Oksana Selekhmeteva

Hobart International - Hobart

2026-01-14Hard6-3 1-6 6-1

Xinyu Wang

Hobart International - Hobart

2026-01-14Hard6-1 7-5

Alexandra Eala

ASB Classic - Auckland

2026-01-09Hard6-3 6-2

Elisabetta Cocciaretto

ASB Classic - Auckland

2026-01-08Hard7-5 2-6 6-3

Venus Williams

ASB Classic - Auckland

2026-01-06Hard6-4 4-6 6-2

Belinda Bencic

Ningbo Open - Ningbo

2025-10-13Hard6-3 6-2

Antonia Ruzic

Wuhan Open - Wuhan

2025-10-06Hard6-2 6-3

Marie Bouzkova

China Open - Beijing

2025-09-26Hard7-5 7-5

Emiliana Arango

Guadalajara Open Akron - Guadalajara

2025-09-09Hard6-0 ret.

Mccartney Kessler

U.S. Open - New York

2025-08-24Hard7-5 7-5

Veronika Kudermetova

Cincinnati Open - Cincinnati

2025-08-14Hard6-4 6-3

Jessica Pegula

Cincinnati Open - Cincinnati

2025-08-13Hard7-6(5) 3-6 6-3

Rebecca Sramkova

Cincinnati Open - Cincinnati

2025-08-10Hard7-6(4) 6-0

Anastasija Sevastova

Omnium Banque Nationale - Montreal

2025-07-30Hard6-3 4-6 6-4

Anna Kalinskaya

Mubadala Citi DC Open - Washington

2025-07-23Hard6-4 6-0

Danielle Rose Collins

Mubadala Citi DC Open - Washington

2025-07-21Hard7-5 6-4

Elsa Jacquemot

Wimbledon - London

2025-07-01Grass6-7(7) 6-1 6-4

Dayana Yastremska

Rothesay International - Eastbourne

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

Dayana Yastremska

Rothesay Open - Nottingham

2025-06-21Grass6-4 6-4

Clara Tauson

Rothesay Open - Nottingham

2025-06-20Grass6-2 7-5

Mingge Xu

Rothesay Open - Nottingham

2025-06-19Grass7-5 6-1

Alexandra Eala

Rothesay Open - Nottingham

2025-06-17Grass6-4 6-3

Bernarda Pera

Libema Open - 's-Hertogenbosch

2025-06-10Grass6-2 6-7(10) 7-5

Clara Tauson

French Open - Paris

2025-05-26Clay6-4 4-6 6-1

Elena Rybakina

Internationaux de Strasbourg - Strasbourg

2025-05-22Clay7-5 6-3

Rebecca Sramkova

Internationaux de Strasbourg - Strasbourg

2025-05-20Clay6-4 6-3

Barbora Krejcikova

Internationaux de Strasbourg - Strasbourg

2025-05-18Clay6-3 6-3

Cori Gauff

Internazionali BNL d'Italia - Rome

2025-05-11Clay7-5 6-3

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