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

Marta Kostyuk

WOMENHot

Age24

BirthplaceKyiv, Ukraine

Height1.75m

Weight—

Best HandRight

Backhand—

Recent Form

Win Rate:75%

Fatigue:0/100

Inactive:15 Days

Overall

Glicko-22.261

#4RD 71

Elo2.373

Hard

Glicko-22.120

#13

Elo2.007

#16

Clay

Glicko-22.469

Elo2.074

Grass

Glicko-21.904

Elo1.689

#27

Surface Record

HardClayGrass

20266-417-15-1

202521-137-40-3

202423-128-52-3

202321-152-42-2

202214-131-43-2

202111-107-32-3

Recent Matches

Linda NoskovaWimbledon - London2026-07-09Grass6-4 6-4

Jasmine PaoliniWimbledon - London2026-07-08Grass6-3 6-2

Ashlyn KruegerWimbledon - London2026-07-06Grass6-4 6-4

Emma NavarroWimbledon - London2026-07-04Grass6-2 4-6 6-1

Anna BlinkovaWimbledon - London2026-07-02Grass6-7(5) 6-3 6-3

Nadia PodoroskaWimbledon - London2026-06-30Grass6-1 6-2

Mirra AndreevaFrench Open - Paris2026-06-04Clay6-1 6-3

Elina SvitolinaFrench Open - Paris2026-06-02Clay6-3 2-6 6-2

Iga SwiatekFrench Open - Paris2026-05-31Clay7-5 6-1

Viktorija GolubicFrench Open - Paris2026-05-29Clay6-4 6-3

Katie VolynetsFrench Open - Paris2026-05-27Clay6-7(4) 6-3 6-3

Oksana SelekhmetevaFrench Open - Paris2026-05-24Clay6-2 6-3

Mirra AndreevaMutua Madrid Open - Madrid2026-05-02Clay6-3 7-5

Anastasia PotapovaMutua Madrid Open - Madrid2026-04-30Clay6-2 1-6 6-1

Linda NoskovaMutua Madrid Open - Madrid2026-04-29Clay7-6(1) 6-0

Caty McNallyMutua Madrid Open - Madrid2026-04-27Clay6-2 6-3

Jessica PegulaMutua Madrid Open - Madrid2026-04-26Clay6-1 6-4

Yulia PutintsevaMutua Madrid Open - Madrid2026-04-24Clay6-1 6-3

Veronika PodrezOpen Capfinances Rouen Metropole - Rouen2026-04-19Clay6-3 6-4

Tatjana MariaOpen Capfinances Rouen Metropole - Rouen2026-04-18Clay6-3 6-0

Ann LiOpen Capfinances Rouen Metropole - Rouen2026-04-17Clay6-0 6-7(4) 6-3

Caty McNallyOpen Capfinances Rouen Metropole - Rouen2026-04-15Clay2-6 6-2 6-1

Diane ParryOpen Capfinances Rouen Metropole - Rouen2026-04-14Clay6-1 6-4

Magda LinetteBillie Jean King Cup, Qualifiers, POL-UKR 0-42026-04-10Clay6-4 6-0

Elena RybakinaMiami Open - Miami2026-03-22Hard6-3 6-4

Kamilla RakhimovaMiami Open - Miami2026-03-20Hard6-2 6-4

Elena RybakinaBNP Paribas Open - Indian Wells2026-03-09Hard6-4 6-4

Taylor TownsendBNP Paribas Open - Indian Wells2026-03-07Hard6-3 6-2

Elsa JacquemotAustralian Open - Melbourne2026-01-18Hard6-7(4) 7-6(4) 7-6(7)

Aryna SabalenkaBrisbane International - Brisbane2026-01-11Hard6-4 6-3

Jessica PegulaBrisbane International - Brisbane2026-01-10Hard6-0 6-3

Mirra AndreevaBrisbane International - Brisbane2026-01-09Hard7-6(7) 6-3

Amanda AnisimovaBrisbane International - Brisbane2026-01-08Hard6-4 6-3

Yulia PutintsevaBrisbane International - Brisbane2026-01-07Hard6-7(5) 6-1 6-0

Karolina MuchovaWuhan Open - Wuhan2025-10-07Hard2-6 6-2 6-4

Jessica PegulaChina Open - Beijing2025-10-01Hard6-3 6-7(4) 6-1

Aliaksandra SasnovichChina Open - Beijing2025-09-29Hard6-4 6-2

Ella SeidelChina Open - Beijing2025-09-27Hard6-1 6-1

Elisabetta CocciarettoBillie Jean King Cup, Finals2025-09-19I.Hard6-2 6-3

Jessica Bouzas ManeiroBillie Jean King Cup, Finals2025-09-17I.Hard7-6(3) 6-2

Karolina MuchovaU.S. Open - New York2025-09-01Hard6-3 6-7(0) 6-3

Diane ParryU.S. Open - New York2025-08-30Hard3-6 6-4 6-2

Zeynep SonmezU.S. Open - New York2025-08-28Hard7-5 6-7(5) 6-3

Katie BoulterU.S. Open - New York2025-08-26Hard6-4 6-4

Tatjana MariaCincinnati Open - Cincinnati2025-08-09Hard6-0 6-1

Elena RybakinaOmnium Banque Nationale - Montreal2025-08-04Hard6-1 2-1 ret.

Mccartney KesslerOmnium Banque Nationale - Montreal2025-08-02Hard5-7 6-3 6-3

Daria KasatkinaOmnium Banque Nationale - Montreal2025-07-31Hard3-6 6-3 7-6(4)

Marketa VondrousovaOmnium Banque Nationale - Montreal2025-07-29Hard2-6 6-3 6-2

Emma RaducanuMubadala Citi DC Open - Washington2025-07-22Hard7-6(4) 6-4

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