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

Alycia Parks

WTA7d inactive

Glicko-21.915

#109 overall·RD 63

Elo1.958#93 overall

Recent Form

40% Win Rate

Hard

Glicko-21.875#136

Elo1.811#101

Clay

Glicko-21.942#108

Elo1.666#299

Grass

Glicko-21.302#2466

Elo1.511#177

Recent Matches

Viktorija Golubic

French Open - Paris

2026-05-27Clay6-2 6-2

Leylah Annie Fernandez

French Open - Paris

2026-05-25Clay6-4 6-4

Jil Teichmann

Grand Prix De SAR La Princesse Lalla Meryem - Rabat

2026-05-20Clay6-3 6-4

Moyuka Uchijima

Grand Prix De SAR La Princesse Lalla Meryem - Rabat

2026-05-18Clay6-2 6-4

Susan Bandecchi

Parma Ladies Open - Parma

2026-05-13Clay6-4 7-5

Mary Stoiana

Parma Ladies Open - Parma

2026-05-11Clay7-5 6-7(8) 6-2

Dalma Galfi

Internazionali BNL d'Italia - Rome

2026-05-04Clay6-4 6-1

Ann Li

Mutua Madrid Open - Madrid

2026-04-23Clay6-2 6-7(5) 6-3

Elisabetta Cocciaretto

Mutua Madrid Open - Madrid

2026-04-22Clay6-3 6-2

Ksenia Efremova

Mutua Madrid Open - Madrid

2026-04-21Clay6-1 7-6(4)

Elina Avanesyan

Mutua Madrid Open - Madrid

2026-04-20Clay6-1 6-2

Mirra Andreeva

Porsche Tennis Grand Prix - Stuttgart

2026-04-16Clay7-6(3) 6-3

Noma Akugue Noha

Porsche Tennis Grand Prix - Stuttgart

2026-04-15Clay6-4 6-2

Viktoriya Tomova

Porsche Tennis Grand Prix - Stuttgart

2026-04-12Clay6-4 6-2

Eva Bennemann

Porsche Tennis Grand Prix - Stuttgart

2026-04-11Clay7-6(1) 6-3

Dalma Galfi

Upper Austria Ladies Linz - Linz

2026-04-06Clay6-3 6-3

Iva Jovic

Credit One Charleston Open - Charleston

2026-04-01Clay6-3 6-2

Mary Stoiana

Credit One Charleston Open - Charleston

2026-03-31Clay2-6 6-4 6-1

Cori Gauff

Miami Open - Miami

2026-03-21Hard3-6 6-0 6-1

Maria Sakkari

Miami Open - Miami

2026-03-20Hard6-3 6-3

Sinja Kraus

Miami Open - Miami

2026-03-19Hard7-5 7-6(4)

Himeno Sakatsume

BNP Paribas Open - Indian Wells

2026-03-04Hard6-4 6-3

Oksana Selekhmeteva

ATX Open - Austin

2026-02-23Hard6-4 3-6 6-3

Katie Volynets

Dubai Duty Free Championships - Dubai

2026-02-13Hard7-6(5) 6-0

Qinwen Zheng

Qatar TotalEnergies Open - Doha

2026-02-10Hard7-6(4) 3-6 6-2

Diana Shnaider

Qatar TotalEnergies Open - Doha

2026-02-08Hard1-6 6-4 7-6(5)

Solana Sierra

Qatar TotalEnergies Open - Doha

2026-02-07Hard7-5 6-3

Rebeka Masarova

Qatar TotalEnergies Open - Doha

2026-02-06Hard4-6 6-0 6-3

Katie Volynets

Ostrava Open - Ostrava

2026-02-05I.Hard5-7 6-4 6-2

Elina Avanesyan

Ostrava Open - Ostrava

2026-02-03I.Hard6-4 6-2

Julia Grabher

Ostrava Open - Ostrava

2026-02-02I.Hard7-6(3) 6-2

Karolina Muchova

Australian Open - Melbourne

2026-01-21Hard4-6 6-4 6-4

Alexandra Eala

Australian Open - Melbourne

2026-01-19Hard0-6 6-3 6-2

Ayano Shimizu

Hobart International - Hobart

2026-01-11Hard2-6 6-2 6-4

Viktorija Golubic

Hobart International - Hobart

2026-01-10Hard4-6 7-6(5) 6-2

Elisabetta Cocciaretto

ASB Classic - Auckland

2026-01-06Hard6-2 7-5

Anhelina Kalinina

Open BLS de Limoges - Limoges

2025-12-12I.Hard7-5 1-6 6-3

Fiona Ferro

Open BLS de Limoges - Limoges

2025-12-10I.Hard6-2 7-5

Eva Vedder

Open BLS de Limoges - Limoges

2025-12-08I.Hard7-5 6-3

Tamara Korpatsch

Open In Arte Angers Loire - Angers

2025-12-05I.Hard6-3 6-3

Oceane Dodin

Open In Arte Angers Loire - Angers

2025-12-04I.Hard7-6(3) 5-7 6-3

Gabriela Andrea Knutson

Open In Arte Angers Loire - Angers

2025-12-02I.Hard6-3 6-1

Malaika Rapolu

Austin 125 - Austin

2025-11-04Hard7-5 6-4

Anna Blinkova

Jiangxi Open - Jiujiang

2025-10-31Hard7-5 7-5

Kaja Juvan

Jiangxi Open - Jiujiang

2025-10-30Hard1-6 6-1 6-1

Lin Zhu

Jiangxi Open - Jiujiang

2025-10-28Hard6-3 2-1 ret.

Ajla Tomljanovic

Guangzhou Open - Guangzhou

2025-10-21Hard7-5 7-5

Dalma Galfi

Japan Open - Osaka

2025-10-14Hard6-4 6-4

Anastasia Zakharova

Wuhan Open - Wuhan

2025-10-04Hard6-4 6-0

Sonay Kartal

China Open - Beijing

2025-09-25Hard6-3 6-2

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