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

Petra Marcinko

WOMEN

Age20

Birthplace—

Height—

Weight—

Best HandRight

Backhand—

Recent Form

Win Rate:50%

Fatigue:19/100

Inactive:7 Days

Overall

Glicko-21.936

#92RD 61

Elo1.921

#121

Hard

Glicko-21.881

#137

Elo1.720

#222

Clay

Glicko-21.990

#68

Elo1.819

#67

Grass

Glicko-21.548

#131

Elo1.471

#1876

Surface Record

HardClayGrass

20262-610-53-2

20256-0——

20231-11-2—

20221-25-1—

Recent Matches

Tamara ZidansekUniCredit Iasi Open - Iasi2026-07-17Clay6-3 7-5

Elina AvanesyanUniCredit Iasi Open - Iasi2026-07-15Clay7-6(3) 7-6(5)

Nadia PodoroskaUniCredit Iasi Open - Iasi2026-07-13Clay6-2 3-6 6-4

Clara BurelGrand Est Open 88 - Contrexeville2026-07-07Clay6-7(3) 6-0 6-2

Sofia KeninWimbledon - London2026-06-30Grass7-6(4) 6-4

Madison KeysLexus Eastbourne Open - Eastbourne2026-06-26Grass6-1 ret.

Caty McNallyLexus Eastbourne Open - Eastbourne2026-06-25Grass6-3 4-6 6-4

Kimberly BirrellLexus Eastbourne Open - Eastbourne2026-06-24Grass6-1 6-4

Antonia RuzicLexus Eastbourne Open - Eastbourne2026-06-22Grass7-6(6) 4-6 7-6(4)

Daria SnigurLexus Eastbourne Open - Eastbourne2026-06-21Grass6-4 6-2

Simona WaltertLexus Eastbourne Open - Eastbourne2026-06-20Grass6-4 6-7(4) 6-4

Renata ZarazuaBerlin Tennis Open - Berlin2026-06-15Grass1-6 6-4 6-3

Aoi ItoBerlin Tennis Open - Berlin2026-06-13Grass6-2 4-6 6-2

Barbora PalicovaMakarska Open - Makarska2026-06-04Clay0-6 7-6(3) 6-4

Caijsa Wilda HennemannMakarska Open - Makarska2026-06-03Clay6-1 6-0

Eva LysFrench Open - Paris2026-05-25Clay6-3 6-0

Anhelina KalininaGrand Prix De SAR La Princesse Lalla Meryem - Rabat2026-05-23Clay6-2 3-0 ret.

Jil TeichmannGrand Prix De SAR La Princesse Lalla Meryem - Rabat2026-05-22Clay7-6(2) 6-3

Jessica Bouzas ManeiroGrand Prix De SAR La Princesse Lalla Meryem - Rabat2026-05-21Clay6-3 6-4

Yelyzaveta KotliarGrand Prix De SAR La Princesse Lalla Meryem - Rabat2026-05-20Clay5-7 6-2 7-6(1)

Vera ZvonarevaGrand Prix De SAR La Princesse Lalla Meryem - Rabat2026-05-18Clay6-2 6-4

Oleksandra OliynykovaInternazionali BNL d'Italia - Rome2026-05-05Clay6-1 6-3

Belinda BencicMutua Madrid Open - Madrid2026-04-23Clay6-4 6-2

Victoria Jimenez KasintsevaMutua Madrid Open - Madrid2026-04-21Clay6-0 7-5

Sinja KrausOeiras Jamor Ladies Open - Oeiras2026-04-18Clay6-4 1-6 6-4

Rebecca SramkovaOeiras Jamor Ladies Open - Oeiras2026-04-17Clay7-6(4) 5-7 6-3

Greetje MinnenOeiras Jamor Ladies Open - Oeiras2026-04-15Clay6-2 6-4

Nuria BrancaccioOeiras Jamor Ladies Open - Oeiras2026-04-13Clay7-5 6-1

Rebecca Munk MortensenBillie Jean King Cup, Group I, Europe/Africa2026-04-10Clay7-5 6-1

Teodora KostovicBillie Jean King Cup, Group I, Europe/Africa2026-04-08Clay6-4 6-1

Andre LukosiuteBillie Jean King Cup, Group I, Europe/Africa2026-04-08Clay6-0 6-1

Teodora KostovicDubrovnik Open - Dubrovnik2026-03-24Clay6-2 6-3

Laura SiegemundMiami Open - Miami2026-03-17Hard6-4 6-4

Donna VekicAustin 125 - Austin2026-03-10Hard6-3 6-4

Laura SiegemundBNP Paribas Open - Indian Wells2026-03-05Hard3-6 6-3 6-4

Kimberly BirrellATX Open - Austin2026-02-24Hard0-6 6-3 6-4

Jaqueline CristianDubai Duty Free Championships - Dubai2026-02-16Hard6-1 6-1

Aliaksandra SasnovichDubai Duty Free Championships - Dubai2026-02-13Hard6-4 6-4

Peyton StearnsAustralian Open - Melbourne2026-01-22Hard6-2 7-5

Tatjana MariaAustralian Open - Melbourne2026-01-19Hard6-3 7-5

Oksana SelekhmetevaHobart International - Hobart2026-01-11Hard6-4 6-2

Sarah RokusekHobart International - Hobart2026-01-10Hard6-4 6-2

Alexandra EalaASB Classic - Auckland2026-01-08Hard6-0 6-2

Maria Camila Osorio SerranoASB Classic - Auckland2026-01-06Hard6-4 0-6 7-6(2)

Vera ZvonarevaW100 Dubai 12025-12-07Hard6-3 6-3

Xinyu GaoW100 Dubai 12025-12-06Hard4-6 6-3 6-0

Arantxa RusW100 Dubai 12025-12-05Hard7-6(5) 1-0 ret.

Harriet DartW100 Dubai 12025-12-04Hard6-1 3-6 6-1

Viktoria HruncakovaW100 Dubai 12025-12-02Hard6-4 6-1

Alevtina IbragimovaW75 Fujairah 12025-11-29Hard6-4 6-4

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