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

Viktorija Golubic

WOMEN

Age33

BirthplaceZurich, Switzerland

Height1.69m

Weight64kg

Best HandRight

Backhand—

Recent Form

Win Rate:75%

Fatigue:0/100

Inactive:22 Days

Overall

Glicko-21.970

#69RD 63

Elo2.024

#58

Hard

Glicko-21.889

#127

Elo1.771

#149

Clay

Glicko-22.052

#42

Elo1.720

#182

Grass

Glicko-21.732

#41

Elo1.607

#51

Surface Record

HardClayGrass

20261-54-34-2

20259-111-30-1

202411-81-21-4

20232-90-23-2

202211-104-64-4

202113-101-37-4

Recent Matches

Jasmine PaoliniWimbledon - London2026-07-02Grass7-6(0) 6-4

Iryna ShymanovichWimbledon - London2026-06-30Grass6-2 2-6 6-1

Emma NavarroLexus Nottingham Open - Nottingham2026-06-20Grass7-6(5) 6-2

Ann LiLexus Nottingham Open - Nottingham2026-06-19Grass6-3 2-6 6-3

Zeynep SonmezLexus Nottingham Open - Nottingham2026-06-18Grass7-5 4-6 6-4

Sofia KeninLexus Nottingham Open - Nottingham2026-06-16Grass6-2 4-6 6-3

Sofia KeninLexus Nottingham Open - Nottingham2026-06-14Grass6-3 6-4

Veronika ErjavecLexus Nottingham Open - Nottingham2026-06-13Grass5-7 7-5 6-4

Katie SwanLexus Ilkley Open - Ilkley2026-06-12Grass6-4 7-6(5)

Daniella BrittonLexus Ilkley Open - Ilkley2026-06-08Grass6-3 6-3

Marta KostyukFrench Open - Paris2026-05-29Clay6-4 6-3

Alycia ParksFrench Open - Paris2026-05-27Clay6-2 6-2

Panna UdvardyFrench Open - Paris2026-05-25Clay6-0 6-2

Barbora KrejcikovaParma Ladies Open - Parma2026-05-14Clay6-7(4) 6-3 6-2

Federica UrgesiParma Ladies Open - Parma2026-05-13Clay6-2 6-3

Varvara LepchenkoParma Ladies Open - Parma2026-05-12Clay4-6 6-1 6-4

Mirra AndreevaInternazionali BNL d'Italia - Rome2026-05-09Clay6-1 4-6 6-0

Maya JointInternazionali BNL d'Italia - Rome2026-05-07Clay7-5 6-2

Federica UrgesiInternazionali BNL d'Italia - Rome2026-05-06Clay6-1 6-1

Jessika PonchetOpen 35 de Saint-Malo - Saint-Malo2026-05-01Clay4-6 6-4 6-2

Whitney OsuigweOpen 35 de Saint-Malo - Saint-Malo2026-04-30Clay2-6 6-2 6-2

Clara BurelOpen 35 de Saint-Malo - Saint-Malo2026-04-27Clay6-3 6-2

Anna BondarMutua Madrid Open - Madrid2026-04-21Clay6-2 6-3

Marie BouzkovaBillie Jean King Cup, Qualifiers, SUI-CZE 2-32026-04-11I.Hard7-6(4) 6-3

Linda NoskovaBillie Jean King Cup, Qualifiers, SUI-CZE 2-32026-04-10I.Hard6-1 6-4

Peyton StearnsMiami Open - Miami2026-03-19Hard7-6(6) 6-4

Nikola BartunkovaMiami Open - Miami2026-03-17Hard6-3 3-6 7-6(3)

Thea FrodinMiami Open - Miami2026-03-16Hard2-6 6-3 6-2

Anastasia ZakharovaAustin 125 - Austin2026-03-10Hard7-5 7-5

Marina StakusicBNP Paribas Open - Indian Wells2026-03-01Hard7-6(8) 6-2

Daria SnigurOeiras 2 Jamor Indoor - Oeiras2026-02-22I.Hard6-3 6-3

Teodora KostovicOeiras 2 Jamor Indoor - Oeiras2026-02-21I.Hard7-5 1-6 6-2

Kaitlin QuevedoOeiras 2 Jamor Indoor - Oeiras2026-02-20I.Hard6-1 6-3

Fiona CrawleyOeiras 2 Jamor Indoor - Oeiras2026-02-18I.Hard6-1 1-6 6-4

Ana Filipa SantosOeiras 2 Jamor Indoor - Oeiras2026-02-16I.Hard6-1 6-0

Lucrezia StefaniniOeiras 1 Jamor Indoor - Oeiras2026-02-12I.Hard6-0 5-7 7-5

Elina AvanesyanOeiras 1 Jamor Indoor - Oeiras2026-02-09I.Hard6-1 6-7(4) 6-4

Katie BoulterOstrava Open - Ostrava2026-02-04I.Hard6-2 6-2

Sinja KrausOstrava Open - Ostrava2026-02-03I.Hard6-4 6-0

Varvara GrachevaAustralian Open - Melbourne2026-01-20Hard6-1 2-6 6-1

Alycia ParksHobart International - Hobart2026-01-10Hard4-6 7-6(5) 6-2

Lilli TaggerJiangxi Open - Jiujiang2025-11-01Hard6-1 4-6 7-5

Yulia PutintsevaJiangxi Open - Jiujiang2025-10-31Hard7-5 6-2

Elena PridankinaJiangxi Open - Jiujiang2025-10-29Hard6-0 4-6 7-5

Rina SaigoJiangxi Open - Jiujiang2025-10-28Hard6-2 6-4

Maya JointToray Pan Pacific Open - Tokyo2025-10-20Hard1-6 7-6(5) 6-2

Eva LysToray Pan Pacific Open - Tokyo2025-10-19Hard6-3 7-6(4)

Sae NoguchiToray Pan Pacific Open - Tokyo2025-10-18Hard6-2 6-1

Sorana CirsteaJapan Open - Osaka2025-10-17Hard6-2 2-6 6-2

Marie BouzkovaJapan Open - Osaka2025-10-16Hard1-6 6-2 7-6(3)

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