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

Anna Kalinskaya

WOMENRising

Age27

BirthplaceMoscow, Russia

Height1.75m

Weight—

Best HandRight

Backhand—

Recent Form

Win Rate:50%

Fatigue:0/100

Inactive:21 Days

Overall

Glicko-22.084

#20RD 68

Elo2.171

#21

Hard

Glicko-22.059

#22

Elo1.955

#25

Clay

Glicko-22.145

#19

Elo1.856

#39

Grass

Glicko-21.684

#58

Elo1.640

#34

Surface Record

HardClayGrass

20269-78-43-3

202519-145-41-1

202423-132-47-2

202310-107-3—

202214-71-42-3

202111-91-30-2

Recent Matches

Belinda BencicWimbledon - London2026-07-03Grass6-4 4-6 7-6(6)

Diane ParryWimbledon - London2026-07-01Grass6-4 3-6 7-6(8)

Magdalena FrechWimbledon - London2026-06-29Grass7-6(5) 6-4

Elena Gabriela RuseBad Homburg Open - Bad Homburg2026-06-24Grass7-5 6-2

Sinja KrausBad Homburg Open - Bad Homburg2026-06-22Grass6-4 6-1

Elina SvitolinaBerlin Tennis Open - Berlin2026-06-16Grass6-1 4-1 ret.

Maja ChwalinskaFrench Open - Paris2026-06-03Clay7-6(3) 6-3

Anastasia PotapovaFrench Open - Paris2026-06-01Clay6-4 2-6 7-6(7)

Maria Camila Osorio SerranoFrench Open - Paris2026-05-30Clay6-3 0-6 6-2

Alina KorneevaFrench Open - Paris2026-05-28Clay7-6(2) 6-4

Lois BoissonFrench Open - Paris2026-05-26Clay6-2 6-2

Jelena OstapenkoInternazionali BNL d'Italia - Rome2026-05-11Clay6-1 6-2

Belinda BencicInternazionali BNL d'Italia - Rome2026-05-09Clay6-4 6-3

Katerina SiniakovaInternazionali BNL d'Italia - Rome2026-05-07Clay4-6 7-6(4) 7-5

Dalma GalfiMutua Madrid Open - Madrid2026-04-23Clay6-3 6-3

Iva JovicCredit One Charleston Open - Charleston2026-04-03Clay6-3 6-4

Paula Badosa GibertCredit One Charleston Open - Charleston2026-04-03Clay6-4 6-2

Viktoriya TomovaCredit One Charleston Open - Charleston2026-03-31Clay6-2 6-4

Anastasia ZakharovaMiami Open - Miami2026-03-20Hard3-6 6-1 7-5

Victoria MbokoBNP Paribas Open - Indian Wells2026-03-08Hard6-4 6-1

Zeynep SonmezBNP Paribas Open - Indian Wells2026-03-06Hard6-4 7-6(4)

Cori GauffDubai Duty Free Championships - Dubai2026-02-17Hard6-4 6-4

Jelena OstapenkoDubai Duty Free Championships - Dubai2026-02-16Hard2-6 6-1 6-4

Karolina MuchovaQatar TotalEnergies Open - Doha2026-02-12Hard6-3 6-4

Elina SvitolinaQatar TotalEnergies Open - Doha2026-02-11Hard6-4 6-3

Emma NavarroQatar TotalEnergies Open - Doha2026-02-10Hard7-5 2-6 6-2

Jessica Bouzas ManeiroQatar TotalEnergies Open - Doha2026-02-09Hard6-2 6-1

Iga SwiatekAustralian Open - Melbourne2026-01-24Hard6-1 1-6 6-1

Julia GrabherAustralian Open - Melbourne2026-01-22Hard6-3 6-3

Sonay KartalAustralian Open - Melbourne2026-01-20Hard7-6(3) 6-1

Victoria MbokoAdelaide International - Adelaide2026-01-13Hard6-2 3-6 7-6(6)

Elena Gabriela RuseAdelaide International - Adelaide2026-01-12Hard6-0 6-3

Jessica PegulaBrisbane International - Brisbane2026-01-07Hard6-2 2-6 6-4

Tereza ValentovaBrisbane International - Brisbane2026-01-05Hard6-4 6-4

Victoria MbokoHong Kong Tennis Open - Hong Kong2025-10-31Hard6-1 3-1 ret.

Shuai ZhangHong Kong Tennis Open - Hong Kong2025-10-30Hard6-1 6-1

Kamilla RakhimovaHong Kong Tennis Open - Hong Kong2025-10-28Hard6-4 6-4

Linda NoskovaToray Pan Pacific Open - Tokyo2025-10-24Hard6-0 1-0 ret.

Diana ShnaiderToray Pan Pacific Open - Tokyo2025-10-22Hard7-6(4) 2-6 7-6(5)

Suzan LamensToray Pan Pacific Open - Tokyo2025-10-20Hard6-3 6-1

Rebecca SramkovaWuhan Open - Wuhan2025-10-07Hard6-2 3-6 6-3

Maria Camila Osorio SerranoChina Open - Beijing2025-09-27Hard6-1 4-6 6-4

Iga SwiatekU.S. Open - New York2025-08-30Hard7-6(2) 6-4

Yulia PutintsevaU.S. Open - New York2025-08-28Hard6-1 7-5

Clervie NgounoueU.S. Open - New York2025-08-25Hard6-0 5-7 6-4

Iga SwiatekCincinnati Open - Cincinnati2025-08-15Hard6-3 6-4

Ekaterina AlexandrovaCincinnati Open - Cincinnati2025-08-13Hard3-6 7-6(5) 6-1

Amanda AnisimovaCincinnati Open - Cincinnati2025-08-11Hard7-5 6-4

Peyton StearnsCincinnati Open - Cincinnati2025-08-09Hard7-6(4) 4-6 6-1

Elina SvitolinaOmnium Banque Nationale - Montreal2025-08-01Hard6-1 6-1

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