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

Alexei Popyrin

ATP8d inactive

Glicko-21.912

#120 overall·RD 76

Elo1.915#107 overall

Recent Form

40% Win Rate

Hard

Glicko-21.789#423

Elo1.689#320

Clay

Glicko-21.980#78

Elo1.776#114

Grass

Glicko-21.528#170

Elo1.493#2685

Recent Matches

Zachary Svajda

French Open - Paris

2026-05-26Clay3-6 6-3 7-6(3) 7-5

Casper Ruud

Gonet Geneva Open - Geneva

2026-05-21Clay6-4 6-3

Taylor Fritz

Gonet Geneva Open - Geneva

2026-05-20Clay6-4 6-4

Clement Tabur

Gonet Geneva Open - Geneva

2026-05-19Clay7-6(2) 6-7(5) 6-4

Jannik Sinner

Internazionali BNL d'Italia - Rome

2026-05-11Clay6-2 6-0

Jakub Mensik

Internazionali BNL d'Italia - Rome

2026-05-09Clay6-3 2-6 6-4

Matteo Berrettini

Internazionali BNL d'Italia - Rome

2026-05-07Clay6-2 6-3

Martin Damm

Mutua Madrid Open - Madrid

2026-04-23Clay7-6(7) 6-4

Casper Ruud

Monte-Carlo Rolex Masters - Monte-Carlo

2026-04-07Clay6-3 6-4

Frances Tiafoe

US Men's Clay Court Championship - Houston

2026-04-04Clay3-6 6-4 7-6(6)

Alex Michelsen

US Men's Clay Court Championship - Houston

2026-04-03Clay6-0 4-6 6-1

Patrick Kypson

US Men's Clay Court Championship - Houston

2026-04-01Clay4-6 6-4 6-3

Marin Cilic

Miami Open - Miami

2026-03-19Hard6-4 6-4

Jenson Brooksby

BNP Paribas Open - Indian Wells

2026-03-04Hard6-3 6-4

Jakub Mensik

Dubai Duty Free Tennis Championships - Dubai

2026-02-25Hard6-3 6-2

Kamil Majchrzak

Dubai Duty Free Tennis Championships - Dubai

2026-02-24Hard3-6 6-3 7-5

Jannik Sinner

Qatar ExxonMobil Open - Doha

2026-02-18Hard6-3 7-5

Mubarak Shannan Zayid

Qatar ExxonMobil Open - Doha

2026-02-16Hard6-0 6-2

Felix Auger Aliassime

ABN AMRO Open - Rotterdam

2026-02-11I.Hard7-5 6-3

Ugo Blanchet

Manama Challenger

2026-01-28Hard6-3 7-6(6)

Alexandre Muller

Australian Open - Melbourne

2026-01-19Hard2-6 6-3 3-6 7-6(5) 7-6(4)

Reilly Opelka

Adelaide International - Adelaide

2026-01-12Hard6-3 7-6(6)

Quentin Halys

Brisbane International - Brisbane

2026-01-05Hard5-7 6-3 6-4

Sebastian Korda

Hellenic Championship - Athens

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

Alexander Bublik

Rolex Paris Masters - Paris

2025-10-27I.Hard6-4 6-3

Matteo Berrettini

Erste Bank Open - Vienna

2025-10-22I.Hard7-6(5) 6-3

Sebastian Korda

BNP Paribas Nordic Open - Stockholm

2025-10-13I.Hard6-7(4) 6-1 6-3

Jannik Sinner

U.S. Open - New York

2025-08-28Hard6-3 6-2 6-2

Emil Ruusuvuori

U.S. Open - New York

2025-08-26Hard6-3 6-4 7-6(3)

Andrey Rublev

Cincinnati Open - Cincinnati

2025-08-12Hard6-7(5) 7-6(5) 7-5

Martin Landaluce

Cincinnati Open - Cincinnati

2025-08-10Hard7-6(3) 6-3

Alexander Zverev

National Bank Open - Toronto

2025-08-04Hard6-7(8) 6-4 6-3

Holger Rune

National Bank Open - Toronto

2025-08-02Hard4-6 6-2 6-3

Daniil Medvedev

National Bank Open - Toronto

2025-07-31Hard5-7 6-4 6-4

Nicolas Arseneault

National Bank Open - Toronto

2025-07-29Hard7-6(7) 6-3

Yibing Wu

Citi Open - Washington

2025-07-23Hard7-5 5-7 6-3

Arthur Fery

Wimbledon - London

2025-06-30Grass6-4 6-1 4-6 6-4

Jack Draper

cinch Championships - London

2025-06-18Grass3-6 6-2 7-6(5)

Aleksandar Vukic

cinch Championships - London

2025-06-17Grass6-2 6-7(9) 7-6(3)

Zizou Bergs

Libema Open - 's-Hertogenbosch

2025-06-12Grass6-7(3) 6-2 7-6(3)

Tommy Paul

French Open - Paris

2025-06-01Clay6-3 6-3 6-3

Nuno Borges

French Open - Paris

2025-05-30Clay6-4 7-6(11) 7-6(5)

Alejandro Tabilo

French Open - Paris

2025-05-28Clay7-5 6-3 6-4

Yoshihito Nishioka

French Open - Paris

2025-05-26Clay7-5 6-4 1-2 ret.

Cameron Norrie

Gonet Geneva Open - Geneva

2025-05-22Clay7-6(6) 6-4

Jacob Fearnley

Gonet Geneva Open - Geneva

2025-05-21Clay6-4 6-3

Nicolas Jarry

Gonet Geneva Open - Geneva

2025-05-18Clay6-4 3-6 7-5

Daniil Medvedev

Internazionali BNL d'Italia - Rome

2025-05-11Clay6-4 6-1

Carlos Taberner

Internazionali BNL d'Italia - Rome

2025-05-09Clay6-1 7-6(4)

Stan Wawrinka

Aix En Provence Challenger

2025-05-01Clay6-3 3-6 6-1

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