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

Sebastian Ofner

ATP8d inactive

Glicko-21.926

#104 overall·RD 67

Elo1.918#100 overall

Recent Form

20% Win Rate

Hard

Glicko-21.992#59

Elo1.716#229

Clay

Glicko-21.915#131

Elo1.775#116

Grass

Glicko-21.594#110

Elo1.585#59

Recent Matches

Luciano Darderi

French Open - Paris

2026-05-26Clay7-6(5) 6-2 6-3

Kilian Feldbausch

Gonet Geneva Open - Geneva

2026-05-16Clay6-4 6-0

Jannik Sinner

Internazionali BNL d'Italia - Rome

2026-05-09Clay6-3 6-4

Alex Michelsen

Internazionali BNL d'Italia - Rome

2026-05-07Clay6-3 6-3

Rinky Hijikata

Aix En Provence Challenger

2026-04-30Clay6-4 2-6 7-6(5)

Stan Wawrinka

Aix En Provence Challenger

2026-04-28Clay6-3 6-4

Tomas Martin Etcheverry

Mutua Madrid Open - Madrid

2026-04-24Clay6-4 6-4

Nikoloz Basilashvili

Mutua Madrid Open - Madrid

2026-04-22Clay7-6(5) 7-6(0)

Alex De Minaur

Barcelona Open Banc Sabadell - Barcelona

2026-04-14Clay7-6(7) 6-4

Patrick Kypson

Barcelona Open Banc Sabadell - Barcelona

2026-04-12Clay6-4 6-4

Alejo Sanchez Quilez

Barcelona Open Banc Sabadell - Barcelona

2026-04-11Clay6-4 6-4

Raul Brancaccio

Menorca Challenger

2026-04-01Clay6-3 1-0 ret.

Pablo Carreno-Busta

Alicante Challenger

2026-03-28Clay3-6 6-3 6-4

Marco Cecchinato

Alicante Challenger

2026-03-27Clay7-6(6) 7-5

Alejandro Moro Canas

Alicante Challenger

2026-03-25Clay7-6(5) 6-4

Timofey Skatov

Alicante Challenger

2026-03-23Clay6-3 6-4

Roberto Carballes Baena

Murcia Challenger

2026-03-20Clay7-6(4) 2-6 6-1

Raul Brancaccio

Murcia Challenger

2026-03-18Clay6-0 6-4

Frederico Ferreira Silva

Murcia Challenger

2026-03-17Clay6-2 7-6(4)

Nicolai Budkov Kjaer

Thionville Challenger

2026-03-08I.Hard6-7(5) 6-3 7-6(7)

Hugo Gaston

Thionville Challenger

2026-03-07I.Hard6-4 6-2

Jurij Rodionov

Thionville Challenger

2026-03-06I.Hard6-2 3-6 6-3

Murphy Cassone

Thionville Challenger

2026-03-05I.Hard7-5 6-2

George Loffhagen

Thionville Challenger

2026-03-04I.Hard4-6 7-5 7-6(5)

Pierre-Hugues Herbert

St. Brieuc Challenger

2026-03-01I.Hard6-4 7-6(4)

Clement Chidekh

St. Brieuc Challenger

2026-02-28I.Hard3-6 6-3 6-4

Matteo Martineau

St. Brieuc Challenger

2026-02-27I.Hard6-4 6-1

Geoffrey Blancaneaux

St. Brieuc Challenger

2026-02-25I.Hard6-4 6-4

Charles Broom

St. Brieuc Challenger

2026-02-23I.Hard6-7(4) 7-6(5) 6-3

Hugo Gaston

Lille Challenger

2026-02-16I.Hard6-2 3-6 6-4

Marc-Andrea Huesler

Tenerife 2 Challenger

2026-02-10Hard6-3 6-7(6) 6-3

Yosuke Watanuki

Davis Cup, World Group, Q, JPN-AUT 2-3

2026-02-06I.Hard6-3 6-4

Nishesh Basavareddy

Australian Open - Melbourne

2026-01-14Hard4-6 6-4 7-6(11)

August Holmgren

Australian Open - Melbourne

2026-01-12Hard6-4 6-4

Dusan Lajovic

Canberra Challenger

2026-01-05Hard6-3 6-2

Leo Borg

BNP Paribas Nordic Open - Stockholm

2025-10-13I.Hard6-3 6-4

Luca Nardi

Shanghai Rolex Masters - Shanghai

2025-10-01Hard3-6 6-3 6-2

Casper Ruud

U.S. Open - New York

2025-08-25Hard6-1 6-2 7-6(5)

Vit Kopriva

Winston-Salem Open - Winston-Salem

2025-08-17Hard3-6 6-4 6-3

Valentin Royer

Cincinnati Open - Cincinnati

2025-08-08Hard5-7 6-3 6-3

Reilly Opelka

National Bank Open - Toronto

2025-07-27Hard7-6(6) 7-5

Jan-Lennard Struff

Generali Open - Kitzbuhel

2025-07-22Clay6-4 6-2

Damir Dzumhur

Nordea Open - Bastad

2025-07-15Clay6-4 6-4

Grigor Dimitrov

Wimbledon - London

2025-07-05Grass6-3 6-4 7-6(0)

Tommy Paul

Wimbledon - London

2025-07-03Grass1-6 7-5 6-4 7-5

Hamad Medjedovic

Wimbledon - London

2025-07-01Grass7-6(8) 3-1 ret.

Mariano Navone

Mallorca Championships - Mallorca

2025-06-21Grass4-6 7-6(6) 3-1 ret.

Andrey Rublev

Terra Wortmann Open - Halle

2025-06-17Grass6-3 6-4

Justin Engel

Terra Wortmann Open - Halle

2025-06-15Grass6-4 6-4

Benjamin Hassan

Terra Wortmann Open - Halle

2025-06-14Grass7-6(4) 7-5

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