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

Solana Sierra

WOMEN

Age22

BirthplaceMar del Plata, Argentina

Height—

Weight—

Best HandRight

Backhand—

Recent Form

Win Rate:50%

Fatigue:0/100

Inactive:23 Days

Overall

Glicko-21.988

#57RD 66

Elo2.056

#43

Hard

Glicko-21.808

#227

Elo1.665

#347

Clay

Glicko-22.122

#25

Elo1.926

#16

Grass

Glicko-21.591

#106

Elo1.572

#75

Surface Record

HardClayGrass

20263-77-42-3

20253-41-23-1

20240-11-1—

20224-00-1—

Recent Matches

Cori GauffWimbledon - London2026-07-01Grass6-3 3-6 7-6(7)

Anna BondarWimbledon - London2026-06-29Grass6-3 5-7 7-5

Qinwen ZhengBad Homburg Open - Bad Homburg2026-06-22Grass7-5 4-6 6-4

Anna BlinkovaBad Homburg Open - Bad Homburg2026-06-21Grass3-6 7-5 6-4

Ella SeidelBad Homburg Open - Bad Homburg2026-06-20Grass6-2 6-1

Caty McNallyLibema Open - 's-Hertogenbosch2026-06-12Grass6-4 6-3

Lois BoissonLibema Open - 's-Hertogenbosch2026-06-10Grass6-4 5-7 6-3

Sorana CirsteaFrench Open - Paris2026-05-29Clay6-0 6-0

Jasmine PaoliniFrench Open - Paris2026-05-27Clay3-6 6-4 6-3

Emma RaducanuFrench Open - Paris2026-05-24Clay6-0 7-6(4)

Dayana YastremskaParma Ladies Open - Parma2026-05-14Clay6-3 7-5

Kaja JuvanParma Ladies Open - Parma2026-05-13Clay3-6 6-2 6-2

Carole MonnetParma Ladies Open - Parma2026-05-12Clay6-4 6-0

Cori GauffInternazionali BNL d'Italia - Rome2026-05-09Clay5-7 6-0 6-4

Anhelina KalininaInternazionali BNL d'Italia - Rome2026-05-07Clay6-2 6-3

Tamara KorpatschInternazionali BNL d'Italia - Rome2026-05-06Clay6-3 6-1

Karolina PliskovaMutua Madrid Open - Madrid2026-04-27Clay6-4 6-3

Zeynep SonmezMutua Madrid Open - Madrid2026-04-26Clay0-6 6-2 6-3

Magdalena FrechMutua Madrid Open - Madrid2026-04-24Clay6-2 6-4

Dayana YastremskaMutua Madrid Open - Madrid2026-04-22Clay7-6(10) 7-6(8)

Akasha UrhoboCredit One Charleston Open - Charleston2026-03-30Clay7-5 3-0 ret.

Kamilla RakhimovaMiami Open - Miami2026-03-19Hard6-1 6-3

Bianca Vanessa AndreescuAustin 125 - Austin2026-03-10Hard6-3 2-6 6-3

Mirra AndreevaBNP Paribas Open - Indian Wells2026-03-07Hard6-0 6-0

Peyton StearnsBNP Paribas Open - Indian Wells2026-03-05Hard7-5 7-5

Kamilla RakhimovaDubai Duty Free Championships - Dubai2026-02-13Hard6-3 7-6(4)

Karolina PliskovaQatar TotalEnergies Open - Doha2026-02-08Hard6-1 6-2

Alycia ParksQatar TotalEnergies Open - Doha2026-02-07Hard7-5 6-3

Hind Al-MudahkaQatar TotalEnergies Open - Doha2026-02-06Hard6-1 6-0

Maria Camila Osorio SerranoPhilippine Women's Open - Manila2026-01-30Hard6-0 6-1

Lanlana TararudeePhilippine Women's Open - Manila2026-01-29Hard6-3 6-4

Yuliia StarodubtsevaPhilippine Women's Open - Manila2026-01-28Hard6-4 6-3

Joanna GarlandPhilippine Women's Open - Manila2026-01-27Hard6-4 7-6(5)

Moyuka UchijimaAustralian Open - Melbourne2026-01-19Hard6-3 6-1

Antonia RuzicHobart International - Hobart2026-01-14Hard7-5 6-4

Caty McNallyHobart International - Hobart2026-01-12Hard1-6 6-4 6-1

Belinda BencicUnited Cup - Australia2026-01-07Hard6-2 6-2

Cori GauffUnited Cup - Australia2026-01-03Hard6-1 6-1

Jessica Bouzas ManeiroUnited Cup - Australia2026-01-02Hard6-4 5-7 6-0

Simona WaltertBillie Jean King Cup, PO, Group C2025-11-16Clay6-3 7-6(8)

Rebecca SramkovaBillie Jean King Cup, PO, Group C2025-11-14Clay6-2 6-4

Oleksandra OliynykovaTucuman Open - Tucuman2025-11-07Clay6-3 6-2

Carla MarkusTucuman Open - Tucuman2025-11-06Clay6-3 6-1

Miriam Bianca BulgaruTucuman Open - Tucuman2025-11-04Clay6-3 7-5

Carole MonnetEngie Open - Florianopolis2025-10-22Clay6-2 6-4

Carolina Meligeni AlvesEngie Open - Florianopolis2025-10-21Clay7-6(6) 6-0

Lola RadivojevicMallorca Women's Championships - Mallorca2025-10-12Clay6-3 6-1

Andrea Lazaro GarciaMallorca Women's Championships - Mallorca2025-10-11Clay6-2 7-5

Ekaterine GorgodzeMallorca Women's Championships - Mallorca2025-10-10Clay3-6 6-0 6-1

Guiomar Zuleta De RealesMallorca Women's Championships - Mallorca2025-10-08Clay7-5 6-4

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