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

Quentin Halys

ATP5d inactive39 Low Fatigue🔥 +51.3 HOT

Glicko-21.938

#92 overall·RD 65

Elo1.961#73 overall

Recent Form

60% Win Rate

Hard

Glicko-21.932#122

Elo1.833#60

Clay

Glicko-21.941#109

Elo1.778#112

Grass

Glicko-21.584#119

Elo1.591#52

Recent Matches

Alexander Zverev

French Open - Paris

2026-05-29Clay6-4 6-3 5-7 6-2

Ugo Humbert

French Open - Paris

2026-05-27Clay6-4 7-6(4) 7-6(8)

Mattia Bellucci

French Open - Paris

2026-05-24Clay6-3 7-6(4) 6-3

Juan Manuel Cerundolo

Bordeaux Challenger

2026-05-16Clay6-2 6-4

Giovanni Mpetshi Perricard

Bordeaux Challenger

2026-05-15Clay6-3 7-6(3)

Botic Van De Zandschulp

Bordeaux Challenger

2026-05-15Clay6-1 2-0 ret.

Sho Shimabukuro

Bordeaux Challenger

2026-05-12Clay6-4 6-2

Jaime Faria

Mutua Madrid Open - Madrid

2026-04-20Clay6-7(9) 6-3 6-4

Hamad Medjedovic

Barcelona Open Banc Sabadell - Barcelona

2026-04-12Clay6-2 3-6 7-6(6)

Matteo Arnaldi

Barcelona Open Banc Sabadell - Barcelona

2026-04-11Clay6-1 6-7(1) 7-6(2)

Emilio Nava

Monte-Carlo Rolex Masters - Monte-Carlo

2026-04-04Clay6-4 6-4

Karim Bennani

Grand Prix Hassan II - Marrakech

2026-03-30Clay6-4 6-7(5) 6-2

Alexander Zverev

Miami Open - Miami

2026-03-24Hard7-6(4) 7-6(1)

Kamil Majchrzak

Miami Open - Miami

2026-03-23Hard7-6(4) 6-1

Alejandro Davidovich Fokina

Miami Open - Miami

2026-03-21Hard7-6(8) 6-4

Liam Draxl

Miami Open - Miami

2026-03-19Hard6-7(4) 6-1 6-1

Corentin Moutet

Phoenix Challenger

2026-03-12Hard6-4 6-4

Stefano Travaglia

Phoenix Challenger

2026-03-11Hard4-6 7-6(3) 7-6(5)

Adam Walton

BNP Paribas Open - Indian Wells

2026-03-04Hard6-3 6-3

Jack Draper

Dubai Duty Free Tennis Championships - Dubai

2026-02-23Hard7-6(8) 6-3

Alexander Shevchenko

Dubai Duty Free Tennis Championships - Dubai

2026-02-22Hard7-6(6) 7-5

Christopher O'Connell

Dubai Duty Free Tennis Championships - Dubai

2026-02-21Hard6-3 6-4

Arthur Fils

Qatar ExxonMobil Open - Doha

2026-02-18Hard6-1 7-6(7)

Pablo Carreno-Busta

Qatar ExxonMobil Open - Doha

2026-02-17Hard4-6 7-5 6-3

Jan Choinski

Qatar ExxonMobil Open - Doha

2026-02-15Hard1-6 6-3 7-6(5)

Mert Alkaya

Qatar ExxonMobil Open - Doha

2026-02-14Hard6-3 6-4

Tallon Griekspoor

ABN AMRO Open - Rotterdam

2026-02-11I.Hard7-5 7-6(11)

Mees Rottgering

ABN AMRO Open - Rotterdam

2026-02-10I.Hard3-6 6-1 6-1

Marc-Andrea Huesler

Quimper Challenger

2026-01-28I.Hard6-3 7-6(9)

Daniil Medvedev

Australian Open - Melbourne

2026-01-21Hard6-7(9) 6-3 6-4 6-2

Alejandro Tabilo

Australian Open - Melbourne

2026-01-19Hard6-2 6-2 7-6(2)

Tomas Machac

Adelaide International - Adelaide

2026-01-14Hard6-4 6-2

Jacob Fearnley

Adelaide International - Adelaide

2026-01-13Hard6-3 6-4

Adam Walton

Adelaide International - Adelaide

2026-01-12Hard6-2 7-6(9)

Benjamin Bonzi

Adelaide International - Adelaide

2026-01-11Hard6-3 6-4

Brandon Nakashima

Brisbane International - Brisbane

2026-01-08Hard6-2 6-4

Alexei Popyrin

Brisbane International - Brisbane

2026-01-05Hard5-7 6-3 6-4

Kamil Majchrzak

Brisbane International - Brisbane

2026-01-04Hard1-6 7-6(5) 6-4

Eliot Spizzirri

Brisbane International - Brisbane

2026-01-03Hard6-4 6-3

Matteo Berrettini

Moselle Open - Metz

2025-11-03I.Hard6-2 6-4

Damir Dzumhur

Rolex Paris Masters - Paris

2025-10-25I.Hard4-6 6-3 6-1

Casper Ruud

Swiss Indoors Basel - Basel

2025-10-22I.Hard6-1 7-6(3)

Remy Bertola

Swiss Indoors Basel - Basel

2025-10-19I.Hard6-4 6-4

Alexander Shevchenko

Swiss Indoors Basel - Basel

2025-10-18I.Hard6-3 6-7(4) 7-6(2)

Nikoloz Basilashvili

European Open - Brussels

2025-10-15I.Hard6-4 6-4

Jiri Lehecka

Shanghai Rolex Masters - Shanghai

2025-10-04Hard6-4 7-5

Mackenzie Mcdonald

Shanghai Rolex Masters - Shanghai

2025-10-02Hard6-3 6-2

Arthur Cazaux

China Open - Beijing

2025-09-24Hard4-6 5-1 ret.

Aoran Wang

China Open - Beijing

2025-09-23Hard6-0 6-2

Christopher O'Connell

Chengdu Open - Chengdu

2025-09-17Hard6-7(3) 6-3 6-4

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