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

Daniel Altmaier

ATP8d inactive

Glicko-21.900

#141 overall·RD 67

Elo1.896#131 overall

Recent Form

40% Win Rate

Hard

Glicko-21.818#342

Elo1.686#328

Clay

Glicko-21.940#111

Elo1.783#104

Grass

Glicko-21.424#3217

Elo1.424#2947

Recent Matches

Felix Auger Aliassime

French Open - Paris

2026-05-26Clay4-6 6-4 4-6 6-1 7-6(7)

Tommy Paul

Hamburg Open - Hamburg

2026-05-21Clay6-2 7-5

Ben Shelton

Hamburg Open - Hamburg

2026-05-19Clay4-6 7-6(4) 6-4

Rinky Hijikata

Hamburg Open - Hamburg

2026-05-18Clay7-5 6-2

Dusan Lajovic

Valencia Challenger

2026-05-14Clay3-6 7-5 7-6(5)

Henri Squire

Valencia Challenger

2026-05-13Clay6-3 6-3

Alexander Zverev

Internazionali BNL d'Italia - Rome

2026-05-08Clay7-5 6-3

Zhizhen Zhang

Internazionali BNL d'Italia - Rome

2026-05-06Clay4-6 7-6(3) 6-4

Juan Manuel Cerundolo

Mutua Madrid Open - Madrid

2026-04-23Clay6-4 6-4

Alex Molcan

BMW Open - Munich

2026-04-16Clay6-4 7-6(10)

Marin Cilic

BMW Open - Munich

2026-04-14Clay6-2 6-3

Tomas Machac

Monte-Carlo Rolex Masters - Monte-Carlo

2026-04-06Clay6-4 1-6 6-3

Fabian Marozsan

Tiriac Open - Bucharest

2026-04-03Clay6-2 7-6(5)

Dino Prizmic

Tiriac Open - Bucharest

2026-04-03Clay3-6 7-6(1) 7-6(7)

Pedro Martinez Portero

Tiriac Open - Bucharest

2026-03-31Clay6-1 6-4

Hamad Medjedovic

Naples Challenger

2026-03-29Clay6-2 6-4

Federico Bondioli

Naples Challenger

2026-03-28Clay6-2 2-6 6-1

Enrico Dalla Valle

Naples Challenger

2026-03-27Clay6-1 6-3

Andrea Guerrieri

Naples Challenger

2026-03-26Clay6-4 4-6 6-3

Miguel Damas

Naples Challenger

2026-03-24Clay6-3 6-1

Terence Atmane

Miami Open - Miami

2026-03-20Hard6-4 6-2

Miomir Kecmanovic

BNP Paribas Open - Indian Wells

2026-03-04Hard6-3 1-0 ret.

Alejandro Davidovich Fokina

Abierto Mexicano Telcel - Acapulco

2026-02-23Hard7-5 6-3

Dusan Lajovic

Rio Open - Rio de Janeiro

2026-02-16Clay6-4 7-6(7)

Juan Manuel Cerundolo

Argentina Open - Buenos Aires

2026-02-10Clay6-2 6-2

Marin Cilic

Australian Open - Melbourne

2026-01-19Hard6-0 6-0 7-6(3)

Jaume Antoni Munar Clar

Adelaide International - Adelaide

2026-01-12Hard6-3 6-0

Kamil Majchrzak

Brisbane International - Brisbane

2026-01-05Hard7-6(4) 6-0

Lorenzo Sonego

Moselle Open - Metz

2025-11-06I.Hard6-4 7-6(6)

Hugo Gaston

Moselle Open - Metz

2025-11-05I.Hard4-6 6-0 ret.

Arthur Rinderknech

Moselle Open - Metz

2025-11-04I.Hard6-4 6-4

Felix Auger Aliassime

Rolex Paris Masters - Paris

2025-10-30I.Hard3-6 6-3 6-2

Casper Ruud

Rolex Paris Masters - Paris

2025-10-29I.Hard6-3 7-5

Marcos Giron

Rolex Paris Masters - Paris

2025-10-27I.Hard6-2 7-6(5)

Jannik Sinner

Erste Bank Open - Vienna

2025-10-22I.Hard6-0 6-2

Gilles Arnaud Bailly

European Open - Brussels

2025-10-14I.Hard6-4 6-7(10) 6-3

Jannik Sinner

Shanghai Rolex Masters - Shanghai

2025-10-04Hard6-3 6-3

Tristan Schoolkate

Shanghai Rolex Masters - Shanghai

2025-10-01Hard6-3 6-4

Aleksandar Vukic

Japan Open Tennis Championships - Tokyo

2025-09-26Hard6-4 6-2

Denis Shapovalov

Japan Open Tennis Championships - Tokyo

2025-09-24Hard7-5 6-3

Alex De Minaur

U.S. Open - New York

2025-08-30Hard6-7(7) 6-3 6-4 2-0 ret.

Stefanos Tsitsipas

U.S. Open - New York

2025-08-28Hard7-6(5) 1-6 4-6 6-3 7-5

Hamad Medjedovic

U.S. Open - New York

2025-08-26Hard7-5 6-7(3) 7-6(7) 6-7(5) 6-4

Ignacio Buse

Cancun Challenger

2025-08-15Hard3-6 6-2 6-3

Yannick Hanfmann

Cancun Challenger

2025-08-14Hard6-1 3-6 6-1

Roberto Bautista Agut

Cincinnati Open - Cincinnati

2025-08-08Hard7-6(5) 7-6(1)

Yosuke Watanuki

National Bank Open - Toronto

2025-07-28Hard3-6 6-1 6-4

Matteo Arnaldi

Citi Open - Washington

2025-07-21Hard4-6 6-2 7-6(2)

Tristan Schoolkate

Mifel Tennis Open - Los Cabos

2025-07-16Hard6-3 6-4

Mitchell Krueger

Mifel Tennis Open - Los Cabos

2025-07-15Hard6-4 6-3

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