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

Rebeka Masarova

WOMEN38 Low Fatigue

Birthplace—

Height—

Weight—

Best Hand—

Backhand—

Recent Form

Win Rate:63%

Fatigue:38/100

Inactive:6 Days

Overall

Glicko-21.960

#69RD 65

Elo1.975

#83

Hard

Glicko-21.858

#157

Elo1.768

#149

Clay

Glicko-22.020

#52

Elo1.816

#62

Grass

Glicko-21.875

#10

Elo1.585

#61

Recent Matches

Alexandra EalaLexus Birmingham Open - Birmingham2026-06-06Grass6-2 4-6 6-3

Mary StoianaLexus Birmingham Open - Birmingham2026-06-05Grass6-4 3-6 6-0

Tatjana MariaLexus Birmingham Open - Birmingham2026-06-04Grass6-4 6-3

Tereza MartincovaLexus Birmingham Open - Birmingham2026-06-02Grass6-7(6) 6-1 6-1

Celine NaefLexus Birmingham Open - Birmingham2026-05-31Grass4-6 6-4 6-0

Emily AppletonLexus Birmingham Open - Birmingham2026-05-30Grass6-2 6-3

Maria Lourdes CarleFrench Open - Paris2026-05-19Clay6-3 4-6 6-3

Jessica PegulaInternazionali BNL d'Italia - Rome2026-05-10Clay6-0 6-0

Leylah Annie FernandezInternazionali BNL d'Italia - Rome2026-05-08Clay4-6 6-4 6-4

Oksana SelekhmetevaInternazionali BNL d'Italia - Rome2026-05-06Clay7-5 5-7 6-1

Jil TeichmannInternazionali BNL d'Italia - Rome2026-05-05Clay1-6 6-1 6-1

Moyuka UchijimaInternazionali BNL d'Italia - Rome2026-05-04Clay6-3 6-2

Elena PridankinaCatalonia Open Solgirones - La Bisbal D'Emporda2026-04-30Clay2-6 6-2 6-1

Ane Mintegi Del OlmoCatalonia Open Solgirones - La Bisbal D'Emporda2026-04-28Clay3-6 7-5 6-3

Leolia JeanjeanMutua Madrid Open - Madrid2026-04-21Clay6-3 3-6 6-3

Rebecca SramkovaMutua Madrid Open - Madrid2026-04-20Clay6-3 7-5

Simona WaltertOeiras Jamor Ladies Open - Oeiras2026-04-16Clay6-3 4-6 6-2

Elena Ruxandra BerteaOeiras Jamor Ladies Open - Oeiras2026-04-14Clay6-3 6-2

Caty McNallyMiami Open - Miami2026-03-19Hard6-2 7-5

Ella SeidelMiami Open - Miami2026-03-17Hard6-1 5-7 7-5

Storm HunterMiami Open - Miami2026-03-16Hard6-2 4-6 6-2

Mananchaya SawangkaewBNP Paribas Open - Indian Wells2026-03-02Hard6-3 7-5

Taylor TownsendATX Open - Austin2026-02-27Hard5-7 6-2 6-2

Whitney OsuigweATX Open - Austin2026-02-25Hard7-6(2) 6-3

Xinyu WangATX Open - Austin2026-02-23Hard6-3 6-2

Madison BrengleATX Open - Austin2026-02-22Hard3-6 6-3 6-4

Gina FeistelATX Open - Austin2026-02-21Hard6-2 6-4

Alycia ParksQatar TotalEnergies Open - Doha2026-02-06Hard4-6 6-0 6-3

Xinyu WangTransylvania Open - Cluj-Napoca2026-02-04I.Hard6-4 6-2

Elena Gabriela RuseTransylvania Open - Cluj-Napoca2026-02-03I.Hard6-1 4-6 6-2

Maja ChwalinskaAustralian Open - Melbourne2026-01-14Hard7-6(8) 5-7 6-1

Alina CharaevaAustralian Open - Melbourne2026-01-12Hard6-3 6-7(2) 7-6(5)

Katie VolynetsBrisbane International - Brisbane2026-01-02Hard6-4 6-4

Viktorija GolubicSuzhou WTA 125 - Suzhou2025-09-30Hard6-2 6-3

Maddison InglisChina Open - Beijing2025-09-23Hard4-6 7-6(5) 7-5

Zarina DiyasChina Open - Beijing2025-09-22Hard6-4 6-4

Aryna SabalenkaU.S. Open - New York2025-08-24Hard7-5 6-1

Sorana CirsteaTennis in the Land - Cleveland2025-08-17Hard6-2 6-2

Unknown PlayerTennis in the Land - Cleveland2025-08-16Hard6-3 6-1

Lauren DavisCincinnati Open - Cincinnati2025-08-06Hard6-2 6-4

Leolia JeanjeanCincinnati Open - Cincinnati2025-08-06Hard6-3 6-4

Yafan WangOmnium Banque Nationale - Montreal2025-07-26Hard6-2 4-6 6-3

Francesca JonesGrand Est Open 88 - Contrexeville2025-07-11Clay2-6 6-2 ret.

Laura PigossiGrand Est Open 88 - Contrexeville2025-07-09Clay6-2 6-1

Angela Fita BoludaGrand Est Open 88 - Contrexeville2025-07-08Clay6-3 6-3

Nina StojanovicWimbledon - London2025-06-25Grass7-5 6-4

Alina KorneevaWimbledon - London2025-06-24Grass6-0 7-5

Aryna SabalenkaBerlin Ladies Open - Berlin2025-06-19Grass6-2 7-6(6)

Sofia KeninBerlin Ladies Open - Berlin2025-06-16Grass6-3 6-2

Ella SeidelBerlin Ladies Open - Berlin2025-06-15Grass7-5 6-1

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