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

Elena Rybakina

WOMEN

Age27

BirthplaceMoscow, Russia

Height1.84m

Weight—

Best HandRight

Backhand—

Recent Form

Win Rate:50%

Fatigue:0/100

Inactive:20 Days

Overall

Glicko-22.258

#5RD 72

Elo2.313

Hard

Glicko-22.359

Elo2.336

Clay

Glicko-22.293

Elo1.982

#10

Grass

Glicko-21.764

#30

Elo1.740

#13

Surface Record

HardClayGrass

202621-510-33-3

202543-139-35-3

202427-712-26-2

202331-1111-25-2

202223-149-58-2

202120-166-47-3

Recent Matches

Elise MertensWimbledon - London2026-07-04Grass7-6(4) 6-1

Caty McNallyWimbledon - London2026-07-02Grass6-1 6-2

Lois BoissonWimbledon - London2026-06-30Grass6-4 1-6 6-3

Alexandra EalaBerlin Tennis Open - Berlin2026-06-18Grass7-5 6-4

Tatjana MariaThe HSBC Championships - London2026-06-12Grass6-7(4) 7-5 6-0

Katie BoulterThe HSBC Championships - London2026-06-12Grass7-5 2-6 6-4

Yuliia StarodubtsevaFrench Open - Paris2026-05-27Clay3-6 6-1 7-6(4)

Veronika ErjavecFrench Open - Paris2026-05-25Clay6-2 6-2

Elina SvitolinaInternazionali BNL d'Italia - Rome2026-05-13Clay2-6 6-4 6-4

Karolina PliskovaInternazionali BNL d'Italia - Rome2026-05-11Clay6-0 6-2

Alexandra EalaInternazionali BNL d'Italia - Rome2026-05-10Clay6-4 6-3

Maria SakkariInternazionali BNL d'Italia - Rome2026-05-08Clay6-4 6-1

Anastasia PotapovaMutua Madrid Open - Madrid2026-04-27Clay7-6(8) 6-4

Qinwen ZhengMutua Madrid Open - Madrid2026-04-26Clay4-6 6-4 6-3

Elena Gabriela RuseMutua Madrid Open - Madrid2026-04-24Clay4-6 6-3 7-5

Karolina MuchovaPorsche Tennis Grand Prix - Stuttgart2026-04-19Clay7-5 6-1

Mirra AndreevaPorsche Tennis Grand Prix - Stuttgart2026-04-18Clay7-5 6-1

Leylah Annie FernandezPorsche Tennis Grand Prix - Stuttgart2026-04-17Clay6-7(5) 6-4 7-6(6)

Diana ShnaiderPorsche Tennis Grand Prix - Stuttgart2026-04-16Clay6-3 6-4

Aryna SabalenkaMiami Open - Miami2026-03-26Hard6-4 6-3

Jessica PegulaMiami Open - Miami2026-03-25Hard2-6 6-3 6-4

Talia GibsonMiami Open - Miami2026-03-23Hard6-2 6-2

Marta KostyukMiami Open - Miami2026-03-22Hard6-3 6-4

Yulia PutintsevaMiami Open - Miami2026-03-20Hard6-3 6-3

Aryna SabalenkaBNP Paribas Open - Indian Wells2026-03-15Hard3-6 6-3 7-6(6)

Elina SvitolinaBNP Paribas Open - Indian Wells2026-03-13Hard7-5 6-4

Jessica PegulaBNP Paribas Open - Indian Wells2026-03-12Hard6-1 7-6(4)

Sonay KartalBNP Paribas Open - Indian Wells2026-03-11Hard6-4 4-3 ret.

Marta KostyukBNP Paribas Open - Indian Wells2026-03-09Hard6-4 6-4

Hailey BaptisteBNP Paribas Open - Indian Wells2026-03-07Hard7-6(5) 2-6 6-2

Antonia RuzicDubai Duty Free Championships - Dubai2026-02-18Hard5-7 6-4 1-0 ret.

Kimberly BirrellDubai Duty Free Championships - Dubai2026-02-17Hard6-1 6-2

Victoria MbokoQatar TotalEnergies Open - Doha2026-02-12Hard7-5 4-6 6-4

Qinwen ZhengQatar TotalEnergies Open - Doha2026-02-11Hard4-6 6-2 7-5

Xinyu WangQatar TotalEnergies Open - Doha2026-02-10Hard6-2 6-4

Aryna SabalenkaAustralian Open - Melbourne2026-01-31Hard6-4 4-6 6-4

Jessica PegulaAustralian Open - Melbourne2026-01-29Hard6-3 7-6(7)

Iga SwiatekAustralian Open - Melbourne2026-01-28Hard7-5 6-1

Elise MertensAustralian Open - Melbourne2026-01-26Hard6-1 6-3

Tereza ValentovaAustralian Open - Melbourne2026-01-24Hard6-2 6-3

Varvara GrachevaAustralian Open - Melbourne2026-01-22Hard7-5 6-2

Kaja JuvanAustralian Open - Melbourne2026-01-20Hard6-4 6-3

Karolina MuchovaBrisbane International - Brisbane2026-01-09Hard6-2 2-6 6-4

Paula Badosa GibertBrisbane International - Brisbane2026-01-08Hard6-3 6-2

Shuai ZhangBrisbane International - Brisbane2026-01-06Hard6-3 7-5

Aryna SabalenkaWTA Finals - Riyadh2025-11-08I.Hard6-3 7-6(0)

Jessica PegulaWTA Finals - Riyadh2025-11-07I.Hard4-6 6-4 6-3

Ekaterina AlexandrovaWTA Finals - Riyadh2025-11-05I.Hard6-4 6-4

Iga SwiatekWTA Finals - Riyadh2025-11-03I.Hard3-6 6-1 6-0

Amanda AnisimovaWTA Finals - Riyadh2025-11-01I.Hard6-3 6-1

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