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

Ekaterina Alexandrova

WOMEN

Age31

BirthplaceChelyabinsk, Russia

Height1.75m

Weight66kg

Best HandRight

Backhand—

Recent Form

Win Rate:63%

Fatigue:0/100

Inactive:21 Days

Overall

Glicko-21.993

#53RD 70

Elo2.023

#60

Hard

Glicko-21.970

#57

Elo1.839

#78

Clay

Glicko-21.744

#373

Elo1.712

#205

Grass

Glicko-21.744

#36

Elo1.690

#25

Surface Record

HardClayGrass

20265-81-55-4

202526-1613-58-3

202420-151-75-3

202317-146-510-2

202216-1211-56-1

202116-156-53-2

Recent Matches

Iva JovicWimbledon - London2026-07-03Grass6-3 3-6 6-4

Lanlana TararudeeWimbledon - London2026-07-01Grass7-5 7-5

Panna UdvardyWimbledon - London2026-06-29Grass6-4 6-2

Naomi OsakaBad Homburg Open - Bad Homburg2026-06-25Grass6-2 6-2

Mirra AndreevaBad Homburg Open - Bad Homburg2026-06-24Grass6-3 6-4

Ann LiBad Homburg Open - Bad Homburg2026-06-23Grass6-1 6-7(5) 6-1

Aryna SabalenkaBerlin Tennis Open - Berlin2026-06-17Grass6-4 6-4

Anastasia PotapovaBerlin Tennis Open - Berlin2026-06-15Grass6-1 ret.

Panna UdvardyLibema Open - 's-Hertogenbosch2026-06-08Grass6-4 7-6(5)

Maria Camila Osorio SerranoFrench Open - Paris2026-05-25Clay6-2 6-4

Ann LiInternationaux de Strasbourg - Strasbourg2026-05-19Clay4-6 6-4 6-3

Laura SiegemundInternazionali BNL d'Italia - Rome2026-05-08Clay6-4 6-7(4) 6-1

Linda NoskovaPorsche Tennis Grand Prix - Stuttgart2026-04-16Clay6-1 6-1

Gabriela Andrea KnutsonPorsche Tennis Grand Prix - Stuttgart2026-04-14Clay6-2 6-2

Karolina PliskovaUpper Austria Ladies Linz - Linz2026-04-09Clay6-1 6-3

Jaqueline CristianMiami Open - Miami2026-03-22Hard6-3 4-6 7-6(5)

Lilli TaggerMiami Open - Miami2026-03-20Hard6-3 6-3

Talia GibsonBNP Paribas Open - Indian Wells2026-03-06Hard6-3 7-5

Magda LinetteDubai Duty Free Championships - Dubai2026-02-17Hard6-2 4-6 6-1

Jelena OstapenkoQatar TotalEnergies Open - Doha2026-02-10Hard6-4 6-2

Sara BejlekMubadala Abu Dhabi Open - Abu Dhabi2026-02-07Hard7-6(5) 6-1

Hailey BaptisteMubadala Abu Dhabi Open - Abu Dhabi2026-02-06Hard3-6 7-6(5) 6-3

Alexandra EalaMubadala Abu Dhabi Open - Abu Dhabi2026-02-05Hard6-3 6-3

Dayana YastremskaMubadala Abu Dhabi Open - Abu Dhabi2026-02-04Hard6-3 6-0

Zeynep SonmezAustralian Open - Melbourne2026-01-18Hard7-5 4-6 6-4

Jaqueline CristianAdelaide International - Adelaide2026-01-12Hard6-4 6-4

Karolina MuchovaBrisbane International - Brisbane2026-01-08Hard6-4 7-5

Sofia KeninBrisbane International - Brisbane2026-01-06Hard7-6(2) 6-3

Elena RybakinaWTA Finals - Riyadh2025-11-05I.Hard6-4 6-4

Sofia KeninToray Pan Pacific Open - Tokyo2025-10-24Hard6-0 2-6 7-6(3)

Jaqueline CristianToray Pan Pacific Open - Tokyo2025-10-23Hard6-1 6-2

Elena RybakinaNingbo Open - Ningbo2025-10-19Hard3-6 6-0 6-2

Diana ShnaiderNingbo Open - Ningbo2025-10-18Hard6-3 6-4

Mccartney KesslerNingbo Open - Ningbo2025-10-17Hard6-3 6-3

Yue YuanNingbo Open - Ningbo2025-10-16Hard6-3 6-3

Jessica PegulaWuhan Open - Wuhan2025-10-09Hard7-5 3-6 6-3

Ann LiWuhan Open - Wuhan2025-10-08Hard7-6(5) 6-2

Victoria MbokoWuhan Open - Wuhan2025-10-06Hard6-3 6-2

Barbora KrejcikovaChina Open - Beijing2025-09-26Hard7-5 6-2

Iga SwiatekKorea Open - Seoul2025-09-21Hard1-6 7-6(3) 7-5

Ella SeidelKorea Open - Seoul2025-09-20Hard6-2 6-3

Katerina SiniakovaKorea Open - Seoul2025-09-20Hard6-4 6-2

Lois BoissonKorea Open - Seoul2025-09-18Hard4-6 6-2 6-2

Iga SwiatekU.S. Open - New York2025-09-01Hard6-3 6-1

Laura SiegemundU.S. Open - New York2025-08-30Hard6-0 6-1

Xinyu WangU.S. Open - New York2025-08-28Hard6-2 6-2

Anastasija SevastovaU.S. Open - New York2025-08-26Hard6-4 6-1

Diana ShnaiderAbierto GNP Seguros - Monterrey2025-08-23Hard6-3 4-6 6-4

Marie BouzkovaAbierto GNP Seguros - Monterrey2025-08-23Hard6-3 ret.

Linda NoskovaAbierto GNP Seguros - Monterrey2025-08-21Hard7-6(5) 4-6 6-2

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