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

Anna Bondar

WTA9d inactive

Glicko-21.994

#46 overall·RD 66

Elo2.020#59 overall

Recent Form

40% Win Rate

Hard

Glicko-21.856#160

Elo1.737#192

Clay

Glicko-22.165#15

Elo1.905#17

Grass

Glicko-21.318#2458

Elo1.383#2028

Recent Matches

Elina Svitolina

French Open - Paris

2026-05-25Clay3-6 6-1 7-6(3)

Anhelina Kalinina

Grand Prix De SAR La Princesse Lalla Meryem - Rabat

2026-05-21Clay6-4 7-5

Emiliana Arango

Grand Prix De SAR La Princesse Lalla Meryem - Rabat

2026-05-20Clay7-6(6) 1-6 6-0

Polona Hercog

Grand Prix De SAR La Princesse Lalla Meryem - Rabat

2026-05-18Clay1-1 ret.

Qinwen Zheng

Internazionali BNL d'Italia - Rome

2026-05-05Clay3-6 6-3 6-4

Mirra Andreeva

Mutua Madrid Open - Madrid

2026-04-27Clay6-7(5) 6-3 7-6(5)

Laura Samson

Mutua Madrid Open - Madrid

2026-04-25Clay7-6(3) 6-1

Elina Svitolina

Mutua Madrid Open - Madrid

2026-04-23Clay6-3 6-4

Viktorija Golubic

Mutua Madrid Open - Madrid

2026-04-21Clay6-2 6-3

Sorana Cirstea

Open Capfinances Rouen Metropole - Rouen

2026-04-17Clay7-6(2) 6-2

Oleksandra Oliynykova

Open Capfinances Rouen Metropole - Rouen

2026-04-16Clay6-0 4-6 6-0

Harmony Tan

Open Capfinances Rouen Metropole - Rouen

2026-04-15Clay6-2 4-6 6-0

Elsa Jacquemot

Billie Jean King Cup, Group I, Europe/Africa

2026-04-10Clay6-1 7-6(3)

Suzan Lamens

Billie Jean King Cup, Group I, Europe/Africa

2026-04-08Clay7-6(5) 6-1

Ayla Aksu

Billie Jean King Cup, Group I, Europe/Africa

2026-04-08Clay6-2 6-2

Madison Keys

Credit One Charleston Open - Charleston

2026-04-02Clay6-2 7-5

Magdalena Frech

Credit One Charleston Open - Charleston

2026-04-01Clay7-5 6-3

Darja Vidmanova

Credit One Charleston Open - Charleston

2026-03-30Clay7-5 7-5

Anastasia Zakharova

Miami Open - Miami

2026-03-19Hard5-7 6-3 6-1

Karolina Muchova

BNP Paribas Open - Indian Wells

2026-03-07Hard7-5 6-2

Elsa Jacquemot

BNP Paribas Open - Indian Wells

2026-03-05Hard7-6(5) 7-5

Kamilla Rakhimova

ATX Open - Austin

2026-02-23Hard6-3 7-5

Moyuka Uchijima

Dubai Duty Free Championships - Dubai

2026-02-13Hard6-3 6-1

Oleksandra Oliynykova

Transylvania Open - Cluj-Napoca

2026-02-03I.Hard6-4 6-4

Ella Seidel

Transylvania Open - Cluj-Napoca

2026-02-01I.Hard4-6 7-6(6) 6-0

Zeynep Sonmez

Australian Open - Melbourne

2026-01-21Hard6-2 6-4

Elizabeth Mandlik

Australian Open - Melbourne

2026-01-19Hard6-0 6-4

Elisabetta Cocciaretto

Hobart International - Hobart

2026-01-15Hard6-2 6-2

Tatjana Maria

Hobart International - Hobart

2026-01-14Hard7-6(7) 7-5

Ella Seidel

Hobart International - Hobart

2026-01-13Hard6-0 6-1

Cristina Bucsa

Brisbane International - Brisbane

2026-01-05Hard4-6 7-6(4) 6-2

Katie Volynets

Brisbane International - Brisbane

2026-01-03Hard6-1 2-6 6-1

Anhelina Kalinina

Brisbane International - Brisbane

2026-01-02Hard6-4 7-6(3)

Anna Blinkova

Jiangxi Open - Jiujiang

2025-10-30Hard7-6(3) 7-5

Sijia Wei

Jiangxi Open - Jiujiang

2025-10-27Hard6-2 6-2

Claire Liu

Guangzhou Open - Guangzhou

2025-10-23Hard6-3 6-4

Hanyu Guo

Guangzhou Open - Guangzhou

2025-10-21Hard6-3 3-6 7-6(4)

Janice Tjen

WTA 125 Jinan Open - Jinan

2025-10-18Hard6-4 4-6 6-4

Priska Madelyn Nugroho

WTA 125 Jinan Open - Jinan

2025-10-17Hard6-4 6-0

Yexin Ma

WTA 125 Jinan Open - Jinan

2025-10-16Hard7-6(10) 6-2

Sijia Wei

WTA 125 Jinan Open - Jinan

2025-10-15Hard6-1 7-5

Darya Astakhova

WTA 125 Jinan Open - Jinan

2025-10-14Hard6-2 6-0

Emiliana Arango

Wuhan Open - Wuhan

2025-10-04Hard6-4 4-6 7-6(5)

Veronika Kudermetova

China Open - Beijing

2025-09-26Hard7-5 6-3

Bianca Vanessa Andreescu

China Open - Beijing

2025-09-24Hard6-4 7-6(4)

Diane Parry

China Open - Beijing

2025-09-23Hard6-0 6-4

Unknown Player

China Open - Beijing

2025-09-22Hard7-6(8) 6-2

Maria Sakkari

U.S. Open - New York

2025-08-28Hard6-3 6-1

Elina Svitolina

U.S. Open - New York

2025-08-25Hard6-2 6-4

Tatjana Maria

Abierto GNP Seguros - Monterrey

2025-08-18Hard7-6(5) 7-5

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