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

Sorana Cirstea

WOMENHot

Age36

BirthplaceBucharest, Romania

Height1.76m

Weight59kg

Best HandRight-handed (two-handed backhand)

Backhand—

Recent Form

Win Rate:63%

Fatigue:0/100

Inactive:20 Days

Overall

Glicko-22.164

#13RD 67

Elo2.239

#14

Hard

Glicko-22.136

#11

Elo2.040

#11

Clay

Glicko-22.284

Elo1.941

#13

Grass

Glicko-21.609

#97

Elo1.527

#131

Surface Record

HardClayGrass

202615-514-43-2

202525-153-20-1

20249-83-50-3

202319-142-43-3

202214-124-54-3

202111-1211-32-3

Recent Matches

Linda NoskovaWimbledon - London2026-07-04Grass2-6 6-3 7-6(9)

Kimberly BirrellWimbledon - London2026-07-02Grass6-3 6-4

Sara BejlekWimbledon - London2026-06-30Grass6-1 7-6(6)

Emma RaducanuThe HSBC Championships - London2026-06-12Grass6-4 6-2

Maddison InglisThe HSBC Championships - London2026-06-09Grass6-4 5-7 6-2

Mirra AndreevaFrench Open - Paris2026-06-02Clay6-0 6-3

Xiyu WangFrench Open - Paris2026-05-31Clay6-3 7-6(4)

Solana SierraFrench Open - Paris2026-05-29Clay6-0 6-0

Eva LysFrench Open - Paris2026-05-27Clay6-3 6-0

Ksenia EfremovaFrench Open - Paris2026-05-24Clay6-3 6-1

Cori GauffInternazionali BNL d'Italia - Rome2026-05-14Clay6-4 6-3

Jelena OstapenkoInternazionali BNL d'Italia - Rome2026-05-12Clay6-1 7-6(0)

Linda NoskovaInternazionali BNL d'Italia - Rome2026-05-11Clay6-2 6-4

Aryna SabalenkaInternazionali BNL d'Italia - Rome2026-05-09Clay2-6 6-3 7-5

Tatjana MariaInternazionali BNL d'Italia - Rome2026-05-07Clay6-2 6-0

Cori GauffMutua Madrid Open - Madrid2026-04-26Clay4-6 7-5 6-1

Tyra Caterina GrantMutua Madrid Open - Madrid2026-04-24Clay6-2 7-6(5)

Anna BondarOpen Capfinances Rouen Metropole - Rouen2026-04-17Clay7-6(2) 6-2

Xinyu WangOpen Capfinances Rouen Metropole - Rouen2026-04-16Clay5-3 ret.

Fiona FerroOpen Capfinances Rouen Metropole - Rouen2026-04-15Clay6-3 6-7(5) 7-6(2)

Mirra AndreevaUpper Austria Ladies Linz - Linz2026-04-10Clay7-6(4) 4-6 6-2

Dalma GalfiUpper Austria Ladies Linz - Linz2026-04-08Clay5-0 ret.

Sinja KrausUpper Austria Ladies Linz - Linz2026-04-07Clay6-3 6-3

Cori GauffMiami Open - Miami2026-03-23Hard6-4 3-6 6-2

Elise MertensMiami Open - Miami2026-03-21Hard6-3 6-2

Linda NoskovaMiami Open - Miami2026-03-20Hard6-2 3-6 6-4

Shuai ZhangMiami Open - Miami2026-03-17Hard6-3 6-4

Linda NoskovaBNP Paribas Open - Indian Wells2026-03-08Hard6-7(5) 6-4 6-4

Diana ShnaiderBNP Paribas Open - Indian Wells2026-03-06Hard6-2 7-6(0)

Tatjana MariaBNP Paribas Open - Indian Wells2026-03-04Hard6-4 4-6 6-3

Alexandra EalaDubai Duty Free Championships - Dubai2026-02-18Hard7-5 6-4

Linda NoskovaDubai Duty Free Championships - Dubai2026-02-17Hard6-1 6-4

Aliaksandra SasnovichDubai Duty Free Championships - Dubai2026-02-16Hard6-3 7-6(6)

Emma RaducanuTransylvania Open - Cluj-Napoca2026-02-07I.Hard6-0 6-2

Daria SnigurTransylvania Open - Cluj-Napoca2026-02-06I.Hard6-0 6-3

Anastasia PotapovaTransylvania Open - Cluj-Napoca2026-02-05I.Hard7-5 6-4

Tamara ZidansekTransylvania Open - Cluj-Napoca2026-02-04I.Hard6-1 6-0

Kamilla RakhimovaTransylvania Open - Cluj-Napoca2026-02-02I.Hard6-4 6-4

Naomi OsakaAustralian Open - Melbourne2026-01-22Hard6-3 4-6 6-2

Eva LysAustralian Open - Melbourne2026-01-20Hard3-6 6-4 6-3

Kamilla RakhimovaAdelaide International - Adelaide2026-01-11Hard7-6(5) 6-3

Ulrikke EikeriAdelaide International - Adelaide2026-01-09Hard6-3 6-3

Aryna SabalenkaBrisbane International - Brisbane2026-01-08Hard6-3 6-3

Jelena OstapenkoBrisbane International - Brisbane2026-01-06Hard6-2 7-6(5)

Anastasia PavlyuchenkovaBrisbane International - Brisbane2026-01-04Hard6-3 6-1

Leylah Annie FernandezHong Kong Tennis Open - Hong Kong2025-10-31Hard6-4 6-4

Ajla TomljanovicHong Kong Tennis Open - Hong Kong2025-10-29Hard4-6 6-4 6-3

Dalma GalfiHong Kong Tennis Open - Hong Kong2025-10-28Hard7-5 6-3

Leylah Annie FernandezJapan Open - Osaka2025-10-18Hard6-1 2-6 6-4

Viktorija GolubicJapan Open - Osaka2025-10-17Hard6-2 2-6 6-2

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