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

Nikola Bartunkova

WOMEN41Hot

Age20

Birthplace—

Height—

Weight—

Best HandRight

Backhand—

Recent Form

Win Rate:63%

Fatigue:41/100

Inactive:1 Days

Overall

Glicko-22.002

#45RD 67

Elo2.064

#41

Hard

Glicko-21.943

#73

Elo1.861

#62

Clay

Glicko-22.005

#58

Elo1.832

#56

Grass

Glicko-21.733

#39

Elo1.601

#55

Surface Record

HardClayGrass

20265-32-24-3

20254-4——

20231-1——

2022—0-1—

Recent Matches

Lanlana TararudeeLivesport Prague Open - Prague2026-07-23Hard7-6(4) 3-6 7-6(6)

Yue YuanLivesport Prague Open - Prague2026-07-21Hard3-6 6-4 6-1

Barbora KrejcikovaWimbledon - London2026-07-03Grass6-3 7-5

Katerina SiniakovaWimbledon - London2026-07-01Grass6-2 6-4

Peyton StearnsWimbledon - London2026-06-29Grass6-4 3-6 7-5

Aryna SabalenkaBerlin Tennis Open - Berlin2026-06-19Grass2-6 7-6(2) 6-4

Elise MertensBerlin Tennis Open - Berlin2026-06-17Grass6-1 6-4

Diana ShnaiderBerlin Tennis Open - Berlin2026-06-15Grass6-2 6-7(2) 6-3

Hanne VandewinkelLibema Open - 's-Hertogenbosch2026-06-10Grass4-6 7-6(5) 7-5

Alexandra EalaLexus Birmingham Open - Birmingham2026-06-07Grass5-7 6-3 7-5

Ashlyn KruegerLexus Birmingham Open - Birmingham2026-06-06Grass6-4 7-6(7)

Mika StojsavljevicLexus Birmingham Open - Birmingham2026-06-05Grass6-4 6-7(8) 7-6(4)

Gabriela Andrea KnutsonLexus Birmingham Open - Birmingham2026-06-04Grass6-4 7-6(4)

Harriet DartLexus Birmingham Open - Birmingham2026-06-02Grass3-6 6-3 7-5

Victoria MbokoFrench Open - Paris2026-05-26Clay6-1 6-2

Elina SvitolinaInternazionali BNL d'Italia - Rome2026-05-11Clay6-2 6-3

Madison KeysInternazionali BNL d'Italia - Rome2026-05-10Clay6-3 1-6 6-4

Tyra Caterina GrantInternazionali BNL d'Italia - Rome2026-05-08Clay4-6 6-3 6-4

Anastasia PotapovaInternazionali BNL d'Italia - Rome2026-05-05Clay4-6 6-4 6-2

Ashlyn KruegerInternazionali BNL d'Italia - Rome2026-05-04Clay6-2 6-2

Alina CharaevaMutua Madrid Open - Madrid2026-04-21Clay6-7(6) 6-2 7-6(6)

Katarzyna KawaMutua Madrid Open - Madrid2026-04-20Clay6-4 2-6 6-3

Ane Mintegi Del OlmoGrand Prix Open Villa de Madrid - Madrid2026-04-08Clay3-6 6-2 6-1

Caroline WernerGrand Prix Open Villa de Madrid - Madrid2026-04-07Clay7-6(6) 6-4

Viktorija GolubicMiami Open - Miami2026-03-17Hard6-3 3-6 7-6(3)

Caroline DolehideMiami Open - Miami2026-03-16Hard6-3 3-6 6-3

Himeno SakatsumeBNP Paribas Open - Indian Wells2026-03-03Hard7-5 1-6 6-3

Emerson JonesBNP Paribas Open - Indian Wells2026-03-01Hard6-2 6-2

Taylor TownsendATX Open - Austin2026-02-25Hard6-1 6-4

Katie VolynetsATX Open - Austin2026-02-23Hard6-4 7-5

Louisa ChiricoATX Open - Austin2026-02-22Hard6-2 6-3

Mariia TkachevaATX Open - Austin2026-02-21Hard6-1 6-1

Diane ParryOstrava Open - Ostrava2026-02-05I.Hard6-1 6-3

Fiona FerroOstrava Open - Ostrava2026-02-04I.Hard6-4 3-6 6-1

Anna BlinkovaOstrava Open - Ostrava2026-02-02I.Hard6-4 6-4

Elise MertensAustralian Open - Melbourne2026-01-24Hard6-0 6-4

Belinda BencicAustralian Open - Melbourne2026-01-22Hard6-3 0-6 6-4

Daria KasatkinaAustralian Open - Melbourne2026-01-20Hard7-6(7) 0-6 6-3

Whitney OsuigweAustralian Open - Melbourne2026-01-15Hard6-1 6-0

Tina Nadine SmithAustralian Open - Melbourne2026-01-14Hard1-6 5-2 ret.

Selena JanicijevicAustralian Open - Melbourne2026-01-12Hard6-3 6-3

Tatiana ProzorovaWorkday Canberra International - Canberra2026-01-06Hard6-1 6-2

Petra MarcinkoBillie Jean King Cup, PO, Group D2025-11-16I.Hard6-3 7-6(6)

Yuliana LizarazoBillie Jean King Cup, PO, Group D2025-11-14I.Hard6-3 6-1

Kimberly BirrellChennai Open - Chennai2025-10-29Hard1-6 6-1 6-3

Wakana SonobeToray Pan Pacific Open - Tokyo2025-10-21Hard6-4 6-3

Kaja JuvanSamsun Open - Samsun2025-10-05Hard7-6(8) 6-3

Darja VidmanovaSamsun Open - Samsun2025-10-04Hard6-4 7-5

Kaitlin QuevedoSamsun Open - Samsun2025-10-03Hard5-7 6-1 6-4

Ayla AksuSamsun Open - Samsun2025-10-02Hard6-3 6-1

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