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

Pedro Martinez Portero

ATP2d inactive

Glicko-21.846

#227 overall·RD 69

Elo1.856#171 overall

Recent Form

60% Win Rate

Hard

Glicko-21.795#406

Elo1.617#607

Clay

Glicko-21.881#183

Elo1.720#199

Grass

Glicko-21.393#3253

Elo1.454#2900

Recent Matches

Frederico Ferreira Silva

Bad Rappenau Challenger

2026-06-01Clay6-2 7-5

Emilio Nava

French Open - Paris

2026-05-22Clay6-3 6-3

Arthur Fery

French Open - Paris

2026-05-20Clay7-6(3) 4-6 6-3

Rei Sakamoto

French Open - Paris

2026-05-19Clay6-2 7-5

Roberto Bautista Agut

Valencia Challenger

2026-05-13Clay6-3 6-1

Jesper De Jong

Internazionali BNL d'Italia - Rome

2026-05-04Clay7-6(5) 7-5

Valentin Royer

Aix En Provence Challenger

2026-04-29Clay6-2 6-3

Adolfo Daniel Vallejo

Mutua Madrid Open - Madrid

2026-04-20Clay6-3 6-1

Lorenzo Sonego

Barcelona Open Banc Sabadell - Barcelona

2026-04-14Clay6-2 2-6 6-4

Marco Trungelliti

Barcelona Open Banc Sabadell - Barcelona

2026-04-12Clay5-7 7-6(5) 6-1

Pablo Carreno-Busta

Barcelona Open Banc Sabadell - Barcelona

2026-04-11Clay6-3 4-3 ret.

Juan Manuel Cerundolo

Monte-Carlo Rolex Masters - Monte-Carlo

2026-04-05Clay6-2 2-6 6-3

Aleksandar Vukic

Monte-Carlo Rolex Masters - Monte-Carlo

2026-04-04Clay6-2 6-4

Daniel Altmaier

Tiriac Open - Bucharest

2026-03-31Clay6-1 6-4

Pablo Carreno-Busta

Alicante Challenger

2026-03-27Clay6-4 4-6 6-4

Remy Bertola

Alicante Challenger

2026-03-26Clay4-6 6-0 6-1

Carlos Sanchez Jover

Alicante Challenger

2026-03-24Clay6-3 6-2

Francisco Comesana

BCI Seguros Chile Open - Santiago

2026-02-23Clay6-4 2-6 7-6(4)

Damir Dzumhur

Rio Open - Rio de Janeiro

2026-02-17Clay0-6 7-6(5) 6-4

Luciano Darderi

Argentina Open - Buenos Aires

2026-02-13Clay7-5 6-1

Juan Manuel Cerundolo

Argentina Open - Buenos Aires

2026-02-12Clay7-6(5) 6-4

Lautaro Midon

Argentina Open - Buenos Aires

2026-02-09Clay6-4 6-1

Adrian Mannarino

Open Occitanie - Montpellier

2026-02-02I.Hard7-6(3) 6-1

Sascha Gueymard Wayenburg

Quimper Challenger

2026-01-29I.Hard7-6(5) 6-1

Arthur Bouquier

Quimper Challenger

2026-01-28I.Hard6-4 7-5

Novak Djokovic

Australian Open - Melbourne

2026-01-19Hard6-3 6-2 6-2

Timofey Skatov

Bengaluru Challenger

2026-01-10Hard7-6(5) 6-3

Matteo Martineau

Bengaluru Challenger

2026-01-09Hard7-6(4) 6-1

Cedrik-Marcel Stebe

Bengaluru Challenger

2026-01-08Hard6-2 6-0

Michael Geerts

Bengaluru Challenger

2026-01-07Hard7-6(3) 6-3

Eero Vasa

Bengaluru Challenger

2026-01-06Hard4-6 6-2 6-3

Marcos Giron

Hellenic Championship - Athens

2025-11-04I.Hard6-4 6-1

Tomas Martin Etcheverry

Rolex Paris Masters - Paris

2025-10-25I.Hard6-2 6-4

Kamil Majchrzak

Swiss Indoors Basel - Basel

2025-10-18I.Hard6-4 6-4

Eliot Spizzirri

European Open - Brussels

2025-10-14I.Hard6-4 6-1

Albert Ramos-Vinolas

Valencia Challenger

2025-10-06Clay6-4 6-2

Arthur Cazaux

Shanghai Rolex Masters - Shanghai

2025-10-02Hard6-3 3-6 7-5

Marko Topo

Bad Waltersdorf Challenger

2025-09-17Clay6-1 3-0 ret.

Holger Rune

Davis Cup, World Group, Q2, ESP-DEN 3-2

2025-09-14Clay6-1 4-6 7-6(3)

Andrea Picchione

Genova Challenger

2025-09-02Clay6-1 6-4

Leandro Riedi

U.S. Open - New York

2025-08-26Hard6-4 6-2 6-3

Giovanni Mpetshi Perricard

Winston-Salem Open - Winston-Salem

2025-08-19Hard2-6 6-3 7-6(3)

David Goffin

Winston-Salem Open - Winston-Salem

2025-08-17Hard6-3 6-3

Tommy Paul

Cincinnati Open - Cincinnati

2025-08-09Hard6-2 6-2

Nicolas Jarry

Cincinnati Open - Cincinnati

2025-08-07Hard1-6 6-4 6-3

Aleksandar Vukic

National Bank Open - Toronto

2025-07-28Hard7-5 6-3

Jan-Lennard Struff

Generali Open - Kitzbuhel

2025-07-23Clay6-2 6-2

Jannik Sinner

Wimbledon - London

2025-07-05Grass6-1 6-3 6-1

Mariano Navone

Wimbledon - London

2025-07-03Grass7-5 7-5 7-6(6)

George Loffhagen

Wimbledon - London

2025-07-01Grass2-6 6-2 6-4 6-2

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