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

Varvara Gracheva

WOMENInactive

Age25

BirthplaceMoscow, Russia

Height1.78m

Weight—

Best HandRight

Backhand—

Recent Form

Win Rate:50%

Fatigue:0/100

Inactive:129 Days

Overall

Glicko-21.987

#58RD 70

Elo2.039

#49

Hard

Glicko-21.987

#51

Elo1.886

#46

Clay

Glicko-21.892

#156

Elo1.713

#197

Grass

Glicko-21.639

#74

Elo1.506

#207

Surface Record

HardClayGrass

20264-7——

20259-134-62-2

20248-156-81-1

202318-144-53-3

20224-114-7—

202112-132-60-2

Recent Matches

Magda LinetteMiami Open - Miami2026-03-17Hard2-6 6-2 6-0

Lilli TaggerBNP Paribas Open - Indian Wells2026-03-05Hard6-2 6-4

Jessica PegulaDubai Duty Free Championships - Dubai2026-02-17Hard6-4 6-0

Rebecca SramkovaDubai Duty Free Championships - Dubai2026-02-16Hard7-5 1-6 6-4

Magdalena FrechDubai Duty Free Championships - Dubai2026-02-14Hard6-4 4-6 7-5

Priscilla HonDubai Duty Free Championships - Dubai2026-02-13Hard6-4 6-4

Maria SakkariQatar TotalEnergies Open - Doha2026-02-11Hard7-6(3) 6-0

Linda NoskovaQatar TotalEnergies Open - Doha2026-02-10Hard6-2 2-6 7-5

Laura SiegemundQatar TotalEnergies Open - Doha2026-02-08Hard7-6(3) 6-4

Elisabetta CocciarettoQatar TotalEnergies Open - Doha2026-02-07Hard6-2 6-1

Aliaksandra SasnovichQatar TotalEnergies Open - Doha2026-02-06Hard6-4 6-0

Elena RybakinaAustralian Open - Melbourne2026-01-22Hard7-5 6-2

Viktorija GolubicAustralian Open - Melbourne2026-01-20Hard6-1 2-6 6-1

Rebecca SramkovaHobart International - Hobart2026-01-13Hard6-4 4-6 6-2

Elina SvitolinaASB Classic - Auckland2026-01-06Hard6-3 6-1

Belinda BencicToray Pan Pacific Open - Tokyo2025-10-23Hard6-4 6-3

Xinyu WangToray Pan Pacific Open - Tokyo2025-10-20Hard4-6 6-3 6-4

Maddison InglisToray Pan Pacific Open - Tokyo2025-10-19Hard6-3 6-1

Emiliana ArangoToray Pan Pacific Open - Tokyo2025-10-18Hard6-2 2-6 7-5

Ann LiJapan Open - Osaka2025-10-14Hard6-4 6-0

Elena Gabriela RuseJapan Open - Osaka2025-10-13Hard7-6(2) 6-2

Himeno SakatsumeJapan Open - Osaka2025-10-12Hard6-3 7-5

Jessica Bouzas ManeiroWuhan Open - Wuhan2025-10-06Hard7-6(0) 6-2

Iva JovicWuhan Open - Wuhan2025-10-05Hard3-6 6-4 6-2

Ajla TomljanovicWuhan Open - Wuhan2025-10-04Hard5-7 5-2 ret.

Lanlana TararudeeChina Open - Beijing2025-09-22Hard7-6(6) 6-4

Tatiana ProzorovaKorea Open - Seoul2025-09-13Hard6-3 6-3

Ena ShibaharaU.S. Open - New York2025-08-22Hard6-0 6-4

Tara WuerthU.S. Open - New York2025-08-21Hard7-5 6-2

Madison BrengleU.S. Open - New York2025-08-18Hard7-5 6-3

Veronika KudermetovaCincinnati Open - Cincinnati2025-08-15Hard6-1 6-2

Ella SeidelCincinnati Open - Cincinnati2025-08-14Hard2-6 6-1 6-1

Karolina MuchovaCincinnati Open - Cincinnati2025-08-12Hard6-2 6-4

Sofia KeninCincinnati Open - Cincinnati2025-08-10Hard6-7(7) 6-3 6-3

Katie VolynetsCincinnati Open - Cincinnati2025-08-08Hard6-4 3-6 6-3

Iva JovicCincinnati Open - Cincinnati2025-08-06Hard6-3 6-4

Mihaela BuzarnescuCincinnati Open - Cincinnati2025-08-05Hard6-0 6-2

Lin ZhuOmnium Banque Nationale - Montreal2025-07-27Hard6-4 7-6(3)

Maddison InglisOmnium Banque Nationale - Montreal2025-07-26Hard6-3 6-2

Sorana CirsteaUniCredit Iasi Open - Iasi2025-07-17Clay6-2 6-4

Ana BogdanUniCredit Iasi Open - Iasi2025-07-14Clay7-5 6-2

Oksana SelekhmetevaGrand Est Open 88 - Contrexeville2025-07-11Clay7-5 6-3

Julia RieraGrand Est Open 88 - Contrexeville2025-07-10Clay6-4 6-4

Margaux RouvroyGrand Est Open 88 - Contrexeville2025-07-09Clay6-4 6-2

Aliaksandra SasnovichWimbledon - London2025-06-30Grass6-4 6-7(5) 7-6(8)

Alexandra EalaRothesay International - Eastbourne2025-06-27Grass7-5 2-6 6-3

Rebecca SramkovaRothesay International - Eastbourne2025-06-25Grass7-5 6-3

Maria Camila Osorio SerranoRothesay International - Eastbourne2025-06-24Grass6-4 4-6 7-5

Viktorija GolubicRothesay International - Eastbourne2025-06-22Grass2-6 7-6(3) 6-4

Caroline DolehideRothesay International - Eastbourne2025-06-21Grass6-3 3-6 6-4

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