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

Clara Tauson

WTA10d inactive❄️ -49.5 COLD

Glicko-21.950

#78 overall·RD 76

Elo1.974#81 overall

Recent Form

0% Win Rate

Hard

Glicko-21.960#58

Elo1.886#48

Clay

Glicko-21.743#371

Elo1.704#204

Grass

Glicko-21.722#35

Elo1.588#55

Recent Matches

Daria Snigur

French Open - Paris

2026-05-24Clay3-6 7-5 6-2

Jaqueline Cristian

Internationaux de Strasbourg - Strasbourg

2026-05-20Clay6-1 7-5

Oleksandra Oliynykova

Internazionali BNL d'Italia - Rome

2026-05-07Clay6-1 3-1 ret.

Katie Boulter

Miami Open - Miami

2026-03-20Hard6-7(4) 6-4 1-0 ret.

Talia Gibson

BNP Paribas Open - Indian Wells

2026-03-08Hard7-6(2) 4-6 6-4

Yulia Putintseva

BNP Paribas Open - Indian Wells

2026-03-06Hard7-6(9) 6-2

Jessica Pegula

Dubai Duty Free Championships - Dubai

2026-02-19Hard6-3 2-6 6-4

Magda Linette

Dubai Duty Free Championships - Dubai

2026-02-18Hard6-4 6-2

Peyton Stearns

Dubai Duty Free Championships - Dubai

2026-02-17Hard6-2 6-4

Sofia Kenin

Dubai Duty Free Championships - Dubai

2026-02-16Hard7-6(4) 6-2

Katerina Siniakova

Qatar TotalEnergies Open - Doha

2026-02-09Hard6-4 6-1

Sara Bejlek

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-06Hard7-5 3-6 7-5

Mccartney Kessler

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-05Hard6-3 6-4

Simona Waltert

Mubadala Abu Dhabi Open - Abu Dhabi

2026-02-03Hard6-3 6-1

Victoria Mboko

Australian Open - Melbourne

2026-01-23Hard7-6(5) 5-7 6-3

Polina Kudermetova

Australian Open - Melbourne

2026-01-21Hard6-3 3-6 7-5

Dalma Galfi

Australian Open - Melbourne

2026-01-19Hard6-3 6-3

Ajla Tomljanovic

Adelaide International - Adelaide

2026-01-12Hard7-6(5) ret.

Aliaksandra Sasnovich

Brisbane International - Brisbane

2026-01-07Hard6-2 6-3

Ajla Tomljanovic

Ningbo Open - Ningbo

2025-10-14Hard1-6 7-6(4) 6-3

Jasmine Paolini

Wuhan Open - Wuhan

2025-10-09Hard3-6 6-1 3-1 ret.

Antonia Ruzic

Wuhan Open - Wuhan

2025-10-08Hard6-4 6-0

Olga Danilovic

Wuhan Open - Wuhan

2025-10-06Hard6-3 7-5

Zeynep Sonmez

China Open - Beijing

2025-09-27Hard6-4 2-6 6-3

Maya Joint

Korea Open - Seoul

2025-09-20Hard6-0 6-3

Eva Lys

Korea Open - Seoul

2025-09-17Hard6-2 7-6(4)

Alexandra Eala

U.S. Open - New York

2025-08-24Hard6-3 2-6 7-6(11)

Veronika Kudermetova

Cincinnati Open - Cincinnati

2025-08-13Hard3-6 7-6(4) 6-4

Ajla Tomljanovic

Cincinnati Open - Cincinnati

2025-08-10Hard6-3 6-7(5) 6-4

Naomi Osaka