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

Learner Tien

ATP4d inactive57 Moderate Fatigue

Glicko-22.117

#15 overall·RD 66

Elo2.127#19 overall

Recent Form

80% Win Rate

Hard

Glicko-22.137#12

Elo2.017#11

Clay

Glicko-22.123#23

Elo1.736#172

Grass

Glicko-21.563#140

Elo1.519#159

Recent Matches

Flavio Cobolli

French Open - Paris

2026-05-30Clay6-2 6-2 6-3

Facundo Diaz Acosta

French Open - Paris

2026-05-28Clay7-5 4-6 3-6 7-6(4) 6-3

Cristian Garin

French Open - Paris

2026-05-26Clay6-0 2-6 6-0 6-2

Mariano Navone

Gonet Geneva Open - Geneva

2026-05-23Clay3-6 6-3 7-5

Alexander Bublik

Gonet Geneva Open - Geneva

2026-05-22Clay6-1 4-6 7-6(5)

Alex Michelsen

Gonet Geneva Open - Geneva

2026-05-21Clay6-4 3-6 6-1

Stefanos Tsitsipas

Gonet Geneva Open - Geneva

2026-05-20Clay7-6(4) 7-6(2)

Rafael Jodar

Internazionali BNL d'Italia - Rome

2026-05-12Clay6-1 6-4

Alexander Bublik

Internazionali BNL d'Italia - Rome

2026-05-10Clay4-6 6-3 7-5

Damir Dzumhur

Internazionali BNL d'Italia - Rome

2026-05-08Clay6-2 6-1

Adolfo Daniel Vallejo

Mutua Madrid Open - Madrid

2026-04-25Clay6-4 6-3

Nishesh Basavareddy

US Men's Clay Court Championship - Houston

2026-04-03Clay6-3 3-6 6-1

Roman Andres Burruchaga

US Men's Clay Court Championship - Houston

2026-04-03Clay7-5 6-4

Kamil Majchrzak

Miami Open - Miami

2026-03-21Hard6-2 4-6 6-2

Jannik Sinner

BNP Paribas Open - Indian Wells

2026-03-12Hard6-1 6-2

Alejandro Davidovich Fokina

BNP Paribas Open - Indian Wells

2026-03-10Hard4-6 6-1 7-6(4)

Ben Shelton

BNP Paribas Open - Indian Wells

2026-03-08Hard7-6(3) 4-6 6-3

Adam Walton

BNP Paribas Open - Indian Wells

2026-03-06Hard7-6(3) 7-6(8)

Tommy Paul

Delray Beach Open - Delray Beach

2026-02-21Hard4-6 6-4 6-3

Frances Tiafoe

Delray Beach Open - Delray Beach

2026-02-20Hard7-6(5) 3-6 7-5

Miomir Kecmanovic

Delray Beach Open - Delray Beach

2026-02-19Hard6-4 6-7(4) 7-6(5)

Marin Cilic

Dallas Open - Dallas

2026-02-10I.Hard7-5 7-6(4)

Alexander Zverev

Australian Open - Melbourne

2026-01-27Hard6-3 6-7(5) 6-1 7-6

Daniil Medvedev

Australian Open - Melbourne

2026-01-25Hard6-4 6-0 6-3

Nuno Borges

Australian Open - Melbourne

2026-01-23Hard7-6(9) 6-4 6-2

Alexander Shevchenko

Australian Open - Melbourne

2026-01-21Hard6-2 5-7 6-1 6-0

Marcos Giron

Australian Open - Melbourne

2026-01-19Hard7-6(2) 4-6 3-6 7-6(3) 6-2

Alex Michelsen

Brisbane International - Brisbane

2026-01-07Hard6-4 6-2

Camilo Ugo Carabelli

Brisbane International - Brisbane

2026-01-04Hard7-6(4) 6-3

Alexander Blockx

Next Gen ATP Finals - Jeddah

2025-12-21I.Hard4-3(4) 4-2 4-1

Nishesh Basavareddy

Next Gen ATP Finals - Jeddah

2025-12-20I.Hard4-2 4-1 4-3(3)

Nicolai Budkov Kjaer

Next Gen ATP Finals - Jeddah

2025-12-19I.Hard3-4(2) 4-1 4-2 4-2

Martin Landaluce

Next Gen ATP Finals - Jeddah

2025-12-18I.Hard1-4 4-1 4-3(4) 4-3(2)

Rafael Jodar

Next Gen ATP Finals - Jeddah

2025-12-17I.Hard1-4 4-3(3) 1-4 4-2 4-3(4)

Cameron Norrie

Moselle Open - Metz

2025-11-08I.Hard6-3 3-6 7-6(6)

Vitaliy Sachko

Moselle Open - Metz

2025-11-07I.Hard6-1 6-4

Matteo Berrettini

Moselle Open - Metz

2025-11-06I.Hard5-7 6-2 6-3

Moez Echargui

Moselle Open - Metz

2025-11-05I.Hard7-6(3) 6-3

Ugo Blanchet

Moselle Open - Metz

2025-11-03I.Hard6-3 6-3

Andrey Rublev

Rolex Paris Masters - Paris

2025-10-28I.Hard6-4 6-4

Nuno Borges

Rolex Paris Masters - Paris

2025-10-27I.Hard6-2 7-6(7)

Daniil Medvedev

Shanghai Rolex Masters - Shanghai

2025-10-08Hard7-6(6) 6-7(1) 6-4

Cameron Norrie

Shanghai Rolex Masters - Shanghai

2025-10-06Hard7-6(4) 6-3

Corentin Moutet

Shanghai Rolex Masters - Shanghai

2025-10-04Hard4-6 6-4 6-4

Miomir Kecmanovic

Shanghai Rolex Masters - Shanghai

2025-10-03Hard4-6 6-3 6-4

Jannik Sinner

China Open - Beijing

2025-10-01Hard6-2 6-2

Daniil Medvedev

China Open - Beijing

2025-09-30Hard5-7 7-5 4-0 ret.

Lorenzo Musetti

China Open - Beijing

2025-09-29Hard4-6 6-3 3-0 ret.

Flavio Cobolli

China Open - Beijing

2025-09-28Hard6-3 6-2

Francisco Cerundolo

China Open - Beijing

2025-09-26Hard4-6 6-3 6-4

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