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

Alina Charaeva

WTA1d inactive

Glicko-21.928

#97 overall·RD 65

Elo1.924#111 overall

Recent Form

60% Win Rate

Hard

Glicko-21.842#175

Elo1.717#219

Clay

Glicko-21.977#79

Elo1.781#101

Grass

Glicko-21.706#45

Elo1.512#172

Recent Matches

Greetje Minnen

Lexus Birmingham Open - Birmingham

2026-06-02Grass6-3 6-1

Lucrezia Stefanini

French Open - Paris

2026-05-19Clay6-4 7-5

Diane Parry

Trophee Clarins - Paris

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

Aliaksandra Sasnovich

Trophee Clarins - Paris

2026-05-15Clay6-4 6-0

Tamara Korpatsch

Trophee Clarins - Paris

2026-05-14Clay6-4 6-7(3) 7-5

Sara Bejlek

Trophee Clarins - Paris

2026-05-12Clay6-4 6-0

Alice Tubello

Trophee Clarins - Paris

2026-05-11Clay6-3 6-4

Daria Kasatkina

Catalonia Open Solgirones - La Bisbal D'Emporda

2026-05-01Clay4-6 6-0 6-4

Xinyu Wang

Catalonia Open Solgirones - La Bisbal D'Emporda

2026-04-30Clay7-5 3-6 7-6(1)

Dalma Galfi

Catalonia Open Solgirones - La Bisbal D'Emporda

2026-04-28Clay6-4 6-2

Janice Tjen

Mutua Madrid Open - Madrid

2026-04-22Clay6-4 6-2

Nikola Bartunkova

Mutua Madrid Open - Madrid

2026-04-21Clay6-7(6) 6-2 7-6(6)

Aliaksandra Sasnovich

Mutua Madrid Open - Madrid

2026-04-20Clay6-3 6-4

Elisabetta Cocciaretto

Open Capfinances Rouen Metropole - Rouen

2026-04-14Clay6-3 4-6 6-2

Jessica Pieri

Open Capfinances Rouen Metropole - Rouen

2026-04-12Clay6-1 6-1

Mina Hodzic

Open Capfinances Rouen Metropole - Rouen

2026-04-11Clay6-4 6-4

Maria Timofeeva

Upper Austria Ladies Linz - Linz

2026-04-05Clay1-6 6-3 6-3

Teodora Kostovic

Dubrovnik Open - Dubrovnik

2026-03-27Clay3-6 6-3 6-4

Andrea Lazaro Garcia

Dubrovnik Open - Dubrovnik

2026-03-27Clay6-1 6-1

Lola Radivojevic

Dubrovnik Open - Dubrovnik

2026-03-23Clay6-2 6-2

Anhelina Kalinina

Megasaray Hotels Open 3 - Antalya

2026-03-13Clay7-5 6-3

Elina Avanesyan

Megasaray Hotels Open 3 - Antalya

2026-03-12Clay6-4 6-1

Lia Karatancheva

Megasaray Hotels Open 3 - Antalya

2026-03-11Clay6-2 6-4

Polina Kudermetova

Megasaray Hotels Open 2 - Antalya

2026-03-04Clay7-5 6-4

Hanyu Guo

Dow Tennis Classic - Midland

2026-02-22I.Hard6-4 7-6(4)

Darja Vidmanova

Dow Tennis Classic - Midland

2026-02-21I.Hard3-6 6-3 6-4

Nao Hibino

Dow Tennis Classic - Midland

2026-02-20I.Hard7-6(5) 6-3

Xiaodi You

Dow Tennis Classic - Midland

2026-02-18I.Hard6-4 7-6(4)

Shilin Xu

Dow Tennis Classic - Midland

2026-02-17I.Hard6-0 6-4

Kaitlin Quevedo

Transylvania Open - Cluj-Napoca

2026-01-31I.Hard7-6(3) 6-2

Alexandra Eala

Philippine Women's Open - Manila

2026-01-26Hard6-1 6-2

Rebeka Masarova

Australian Open - Melbourne

2026-01-12Hard6-3 6-7(2) 7-6(5)

Yeon Woo Ku

ASB Classic - Auckland

2026-01-03Hard6-3 6-2

Gabriela Andrea Knutson

Open BLS de Limoges - Limoges

2025-12-09I.Hard2-6 7-6(3) 6-4

Veronika Podrez

Open In Arte Angers Loire - Angers

2025-12-01I.Hard6-1 6-1

Polina Iatcenko

Chennai Open - Chennai

2025-10-29Hard6-3 5-0 ret.

Jaqueline Cristian

Toray Pan Pacific Open - Tokyo

2025-10-21Hard6-2 6-3

Rebecca Sramkova

Toray Pan Pacific Open - Tokyo

2025-10-19Hard6-1 3-0 ret.

Himeno Sakatsume

Toray Pan Pacific Open - Tokyo

2025-10-18Hard6-4 1-6 6-2

Tereza Valentova

Japan Open - Osaka

2025-10-12Hard6-1 6-2

Mia Pohankova

W75 Bratislava 1

2025-10-02I.Hard6-3 6-4

Sona Depesova

W75 Bratislava 1

2025-09-30I.Hard6-0 6-0

Veronika Erjavec

Huzhou Open - Huzhou

2025-09-14Clay6-2 6-1

Carole Monnet

Huzhou Open - Huzhou

2025-09-13Clay6-2 6-1

Mai Hontama

Huzhou Open - Huzhou

2025-09-12Clay7-6(2) 6-4

Diletta Cherubini

Huzhou Open - Huzhou

2025-09-11Clay6-4 0-6 6-1

En Shuo Liang

Huzhou Open - Huzhou

2025-09-09Clay6-2 2-6 6-4

Maria Timofeeva

WTA Changsha Open - Changsha

2025-09-05Clay6-3 6-4

Zhibek Kulambayeva

WTA Changsha Open - Changsha

2025-09-03Clay6-1 6-4

Ying Zhang

WTA Changsha Open - Changsha

2025-09-01Clay6-3 2-0 ret.

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