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

Hailey Baptiste

WTA7d inactive

Glicko-22.036

#28 overall·RD 70

Elo2.128#23 overall

Recent Form

40% Win Rate

Hard

Glicko-21.961#57

Elo1.911#37

Clay

Glicko-22.133#23

Elo1.891#23

Grass

Glicko-21.493#2304

Elo1.533#118

Recent Matches

Xiyu Wang

French Open - Paris

2026-05-27Clay5-4 ret.

Barbora Krejcikova

French Open - Paris

2026-05-24Clay6-7(7) 7-6(6) 6-2

Elina Svitolina

Internazionali BNL d'Italia - Rome

2026-05-10Clay6-1 6-2

Simona Waltert

Internazionali BNL d'Italia - Rome

2026-05-08Clay6-7(9) 6-4 6-4

Mirra Andreeva

Mutua Madrid Open - Madrid

2026-04-30Clay6-4 7-6(8)

Aryna Sabalenka

Mutua Madrid Open - Madrid

2026-04-28Clay2-6 6-2 7-6(6)

Belinda Bencic

Mutua Madrid Open - Madrid

2026-04-27Clay6-1 6-7(14) 6-3

Jasmine Paolini

Mutua Madrid Open - Madrid

2026-04-25Clay7-5 6-3

Kaitlin Quevedo

Mutua Madrid Open - Madrid

2026-04-23Clay6-1 6-4

Iryna Shymanovich

Open Capfinances Rouen Metropole - Rouen

2026-04-16Clay6-3 5-7 6-3

Jessika Ponchet

Open Capfinances Rouen Metropole - Rouen

2026-04-14Clay3-6 7-6(6) 6-2

Renata Zarazua

Credit One Charleston Open - Charleston

2026-04-02Clay3-6 6-3 6-4

Aryna Sabalenka

Miami Open - Miami

2026-03-25Hard6-4 6-4

Jelena Ostapenko

Miami Open - Miami

2026-03-23Hard6-3 6-4

Elina Svitolina

Miami Open - Miami

2026-03-22Hard6-3 7-5

Liudmila Samsonova

Miami Open - Miami

2026-03-20Hard6-3 7-5

Tatjana Maria

Miami Open - Miami

2026-03-19Hard7-5 6-2

Elena Rybakina

BNP Paribas Open - Indian Wells

2026-03-07Hard7-6(5) 2-6 6-2

Emiliana Arango

BNP Paribas Open - Indian Wells

2026-03-05Hard2-6 6-2 6-3

Alexandra Eala

Dubai Duty Free Championships - Dubai

2026-02-15Hard6-4 0-1 ret.

Rebecca Sramkova

Dubai Duty Free Championships - Dubai

2026-02-14Hard6-3 7-5

Shuai Zhang

Dubai Duty Free Championships - Dubai

2026-02-13Hard6-4 6-4

Ekaterina Alexandrova

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-06Hard3-6 7-6(5) 6-3

Liudmila Samsonova

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-05Hard6-2 4-6 6-4

Emma Navarro

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-03Hard7-6(6) 0-6 6-3

Teodora Kostovic

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-01Hard4-6 6-3 6-4

Cori Gauff

Australian Open - Melbourne

2026-01-23Hard3-6 6-0 6-3

Storm Hunter

Australian Open - Melbourne

2026-01-21Hard6-2 6-1

Taylor Townsend

Australian Open - Melbourne

2026-01-18Hard6-3 6-7(3) 6-3

Renata Zarazua

Hobart International - Hobart

2026-01-12Hard6-7(5) 6-3 6-3

Yulia Putintseva

Brisbane International - Brisbane

2026-01-05Hard6-2 6-4

Maddison Inglis

Toray Pan Pacific Open - Tokyo

2025-10-18Hard2-6 6-4 1-0 ret.

Leylah Annie Fernandez

Japan Open - Osaka

2025-10-14Hard6-2 7-5

Jessica Pegula

Wuhan Open - Wuhan

2025-10-08Hard6-4 4-6 7-6(6)

Ashlyn Krueger

Wuhan Open - Wuhan

2025-10-06Hard2-6 6-4 6-2

Katie Boulter

China Open - Beijing

2025-09-24Hard7-5 5-7 6-4

Naomi Osaka

U.S. Open - New York

2025-08-28Hard6-3 6-1

Katerina Siniakova

U.S. Open - New York

2025-08-26Hard7-5 6-3

Anastasia Zakharova

Tennis in the Land - Cleveland

2025-08-19Hard6-4 6-3

Elena Gabriela Ruse

Tennis in the Land - Cleveland

2025-08-18Hard6-2 7-6(2)

Clervie Ngounoue

Cincinnati Open - Cincinnati

2025-08-07Hard6-1 4-6 6-1

Elena Rybakina

Omnium Banque Nationale - Montreal

2025-07-29Hard6-4 6-3

Whitney Osuigwe

Omnium Banque Nationale - Montreal

2025-07-27Hard7-5 6-1

Sofia Kenin

Mubadala Citi DC Open - Washington

2025-07-22Hard6-3 7-6(4)

Mirra Andreeva

Wimbledon - London

2025-07-05Grass6-1 6-3

Victoria Mboko

Wimbledon - London

2025-07-03Grass7-6(6) 6-3

Sorana Cirstea

Wimbledon - London

2025-07-01Grass6-7(0) 6-1 6-2

Alexandra Eala

Rothesay International - Eastbourne

2025-06-22Grass6-7(1) 7-6(4) 6-1

Yue Yuan

Rothesay International - Eastbourne

2025-06-21Grass7-5 6-3

Laura Siegemund

Rothesay Open - Nottingham

2025-06-15Grass6-3 6-3

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