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

Jan-Lennard Struff

ATP6d inactive

Glicko-21.867

#187 overall·RD 71

Elo1.881#141 overall

Recent Form

20% Win Rate

Hard

Glicko-21.888#191

Elo1.718#223

Clay

Glicko-21.802#316

Elo1.748#148

Grass

Glicko-21.707#40

Elo1.620#39

Recent Matches

Jaime Faria

French Open - Paris

2026-05-28Clay7-5 7-6(1) 6-2

Alexander Bublik

French Open - Paris

2026-05-26Clay7-5 6-7(6) 6-4 7-5

Jakub Mensik

Hamburg Open - Hamburg

2026-05-18Clay7-6(3) 6-2

Nicolas Alvarez Varona

Valencia Challenger

2026-05-12Clay6-1 5-7 6-2

Jiri Lehecka

Internazionali BNL d'Italia - Rome

2026-05-08Clay7-6(4) 6-3

Francisco Comesana

Internazionali BNL d'Italia - Rome

2026-05-06Clay6-2 6-4

Alex Michelsen

Mutua Madrid Open - Madrid

2026-04-24Clay6-2 6-1

Alexandre Muller

Mutua Madrid Open - Madrid

2026-04-22Clay7-6(3) 6-0

Nikoloz Basilashvili

Monte-Carlo Rolex Masters - Monte-Carlo

2026-04-04Clay6-3 6-3

Darwin Blanch

Miami Open - Miami

2026-03-19Hard6-3 3-6 6-3

James Duckworth

Phoenix Challenger

2026-03-10Hard6-7(3) 6-4 6-4

Zizou Bergs

BNP Paribas Open - Indian Wells

2026-03-04Hard6-3 6-4

Alexander Bublik

Dubai Duty Free Tennis Championships - Dubai

2026-02-24Hard6-3 6-4

Otto Virtanen

Dubai Duty Free Tennis Championships - Dubai

2026-02-22Hard6-7(7) 6-4 6-4

Abdulrahman Al Janahi

Dubai Duty Free Tennis Championships - Dubai

2026-02-21Hard6-0 6-1

Alexander Bublik

ABN AMRO Open - Rotterdam

2026-02-12I.Hard7-6(2) 4-6 6-3

Hugo Grenier

ABN AMRO Open - Rotterdam

2026-02-10I.Hard6-0 6-4

Juan Pablo Varillas

Davis Cup, World Group, Q, GER-PER 4-0

2026-02-06I.Hard6-4 6-2

Vit Kopriva

Australian Open - Melbourne

2026-01-20Hard4-6 6-2 2-6 6-3 6-1

Emilio Nava

ASB Classic - Auckland

2026-01-11Hard3-6 6-4 6-3

Anton Shepp

ASB Classic - Auckland

2026-01-10Hard7-5 6-2

Botic Van De Zandschulp

Hong Kong Tennis Open - Hong Kong

2026-01-06Hard6-3 1-6 6-1

Nishesh Basavareddy

Hong Kong Tennis Open - Hong Kong

2026-01-05Hard7-6(5) 6-2

Zsombor Piros

Hong Kong Tennis Open - Hong Kong

2026-01-04Hard7-5 7-6(3)

Pablo Carreno-Busta

Davis Cup, World Group, SF, ESP-GER 2-1

2025-11-22I.Hard6-4 7-6(6)

Tomas Martin Etcheverry

Davis Cup, World Group, QF, ARG-GER 1-2

2025-11-20I.Hard7-6(3) 7-6(7)

Liam Broady

Lyon Challenger

2025-11-15I.Hard6-4 6-4

Dan Added

Lyon Challenger

2025-11-14I.Hard1-6 7-6(5) 6-2

Vit Kopriva

Lyon Challenger

2025-11-13I.Hard6-1 6-2

Mark Lajal

Lyon Challenger

2025-11-12I.Hard6-4 6-2

Beibit Zhukayev

Lyon Challenger

2025-11-11I.Hard6-7(5) 7-6(1) 6-4

Alexandre Muller

Hellenic Championship - Athens

2025-11-03I.Hard6-3 2-6 7-6(6)

Henry Bernet

Hellenic Championship - Athens

2025-11-02I.Hard4-6 6-4 6-3

Mark Lajal

Hellenic Championship - Athens

2025-11-01I.Hard7-6(1) 7-5

Alexander Blockx

Bratislava 2 Challenger

2025-10-27I.Hard3-6 6-4 7-6(5)

Corentin Moutet

Almaty Open - Almaty

2025-10-17I.Hard6-4 7-5

Karen Khachanov

Almaty Open - Almaty

2025-10-16I.Hard4-6 7-6(5) 6-3

Mackenzie Mcdonald

Almaty Open - Almaty

2025-10-15I.Hard2-6 6-3 6-4

Stefanos Sakellaridis

Roanne Challenger

2025-10-08I.Hard3-6 7-6(6) 7-5

Edas Butvilas

Villena Challenger

2025-09-30Hard6-4 6-2

Yoshihito Nishioka

Davis Cup, World Group, Q2, JPN-GER 0-4

2025-09-12I.Hard6-4 6-7(4) 6-4

Novak Djokovic

U.S. Open - New York

2025-08-31Hard6-3 6-3 6-2

Frances Tiafoe

U.S. Open - New York

2025-08-29Hard6-4 6-3 7-6(7)

Holger Rune

U.S. Open - New York

2025-08-27Hard7-6(5) 2-6 6-3 4-6 7-5

Mackenzie Mcdonald

U.S. Open - New York

2025-08-25Hard3-6 7-6(4) 6-3 6-3

Arthur Cazaux

U.S. Open - New York

2025-08-22Hard7-6(4) 6-3

Taro Daniel

U.S. Open - New York

2025-08-21Hard2-6 6-4 6-1

Clement Chidekh

U.S. Open - New York

2025-08-18Hard6-4 6-1

Yannick Hanfmann

Cancun Challenger

2025-08-12Hard3-6 7-5 6-1

Mariano Navone

Cincinnati Open - Cincinnati

2025-08-06Hard6-7(2) 6-2 6-4

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