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

Zizou Bergs

MENHot

Age27

BirthplaceLommel, Belgium

Height1.85m

Weight88kg

Best HandRight

BackhandTwo-Handed

Recent Form

Win Rate:88%

Fatigue:0/100

Inactive:20 Days

Overall

Glicko-22.001

#50RD 63

Elo2.026

#45

Hard

Glicko-21.952

#112

Elo1.812

#81

Clay

Glicko-21.868

#216

Elo1.676

#338

Grass

Glicko-21.846

#11

Elo1.642

#36

Surface Record

HardClayGrass

20266-73-57-3

202524-192-44-4

202414-103-61-2

20231-72-2—

20221-5—0-1

20210-11-2—

Recent Matches

Arthur FeryWimbledon - London2026-07-04Grass2-6 7-5 2-6 7-6(3) 7-6(5)

Jaime FariaWimbledon - London2026-07-02Grass7-6(6) 4-6 6-2 6-3

Ugo HumbertWimbledon - London2026-06-30Grass6-2 7-5 4-6 3-6 6-3

Ugo HumbertLexus Eastbourne Open - Eastbourne2026-06-28Grass3-6 6-1 6-4

Toby SamuelLexus Eastbourne Open - Eastbourne2026-06-26Grass4-6 7-6(5) 6-2

Jan ChoinskiLexus Eastbourne Open - Eastbourne2026-06-25Grass6-3 6-3

Daniel AltmaierLexus Eastbourne Open - Eastbourne2026-06-24Grass6-3 3-2 ret.

Jaume Antoni Munar ClarLexus Eastbourne Open - Eastbourne2026-06-22Grass6-2 6-4

Taylor FritzTerra Wortmann Open - Halle2026-06-17Grass7-6(4) 5-7 6-4

James McCabeLibema Open - 's-Hertogenbosch2026-06-10Grass6-7(2) 6-2 7-6(4)

Tomas MachacFrench Open - Paris2026-05-24Clay6-4 6-4 6-3

Adolfo Daniel VallejoValencia Challenger2026-05-15Clay6-4 6-3

Roberto Bautista AgutValencia Challenger2026-05-14Clay6-7(5) 6-3 6-3

Terence AtmaneInternazionali BNL d'Italia - Rome2026-05-07Clay6-3 6-4

Alejandro TabiloAix En Provence Challenger2026-05-03Clay6-4 4-6 6-3

Pol Martin TiffonAix En Provence Challenger2026-05-02Clay6-3 6-4

Rinky HijikataAix En Provence Challenger2026-05-01Clay5-7 6-2 6-2

Pierre-Hugues HerbertAix En Provence Challenger2026-04-30Clay6-4 6-3

Marin CilicMutua Madrid Open - Madrid2026-04-22Clay4-6 6-3 6-4

Flavio CobolliBMW Open - Munich2026-04-15Clay6-2 6-3

Marko TopoBMW Open - Munich2026-04-14Clay6-1 6-4

Alexander ZverevMonte-Carlo Rolex Masters - Monte-Carlo2026-04-09Clay6-2 7-5

Andrey RublevMonte-Carlo Rolex Masters - Monte-Carlo2026-04-08Clay6-4 6-1

Adrian MannarinoMonte-Carlo Rolex Masters - Monte-Carlo2026-04-06Clay6-4 6-3

Tomas Martin EtcheverryMiami Open - Miami2026-03-21Hard7-6(5) 7-6(3)

Jenson BrooksbyMiami Open - Miami2026-03-19Hard7-5 6-2

Tommy PaulBNP Paribas Open - Indian Wells2026-03-06Hard6-1 6-2

Jan-Lennard StruffBNP Paribas Open - Indian Wells2026-03-04Hard6-3 6-4

Jenson BrooksbyDubai Duty Free Tennis Championships - Dubai2026-02-24Hard6-3 6-4

Jiri LeheckaQatar ExxonMobil Open - Doha2026-02-18Hard6-2 6-1

Giovanni Mpetshi PerricardQatar ExxonMobil Open - Doha2026-02-17Hard6-3 6-7(5) 6-4

Hamad MedjedovicABN AMRO Open - Rotterdam2026-02-10I.Hard7-6(5) 7-6(5)

Hubert HurkaczAustralian Open - Melbourne2026-01-20Hard6-7(6) 7-6(6) 6-3 6-3

Stan WawrinkaUnited Cup - Australia2026-01-10Hard6-3 6-7(4) 6-3

Jakub MensikUnited Cup - Australia2026-01-08Hard6-2 7-6(4)

Felix Auger AliassimeUnited Cup - Australia2026-01-06Hard6-4 6-2

Zhizhen ZhangUnited Cup - Australia2026-01-03Hard6-7(2) 7-6(3) 7-5

Flavio CobolliDavis Cup, World Group, SF, ITA-BEL 2-02025-11-21I.Hard6-3 6-7(5) 7-6(15)

Arthur RinderknechDavis Cup, World Group, QF, FRA-BEL 0-22025-11-18I.Hard6-3 7-6(4)

Jannik SinnerRolex Paris Masters - Paris2025-10-29I.Hard6-4 6-2

Alex MichelsenRolex Paris Masters - Paris2025-10-27I.Hard6-3 2-6 6-2

Raphael CollignonEuropean Open - Brussels2025-10-14I.Hard6-4 7-6(5)

Novak DjokovicShanghai Rolex Masters - Shanghai2025-10-09Hard6-3 7-5

Gabriel DialloShanghai Rolex Masters - Shanghai2025-10-07Hard3-6 7-5 7-6(8)

Francisco CerundoloShanghai Rolex Masters - Shanghai2025-10-05Hard7-6(1) 6-3

Casper RuudShanghai Rolex Masters - Shanghai2025-10-03Hard3-6 7-5 4-1 ret.

Sebastian KordaShanghai Rolex Masters - Shanghai2025-10-01Hard6-4 7-5

Carlos AlcarazJapan Open Tennis Championships - Tokyo2025-09-27Hard6-4 6-3

Alejandro TabiloJapan Open Tennis Championships - Tokyo2025-09-25Hard1-6 7-6(2) 7-6(4)

Juncheng ShangChengdu Open - Chengdu2025-09-17Hard6-1 5-7 6-4

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