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

Brandon Nakashima

ATP4d inactive54 Moderate Fatigue

Glicko-21.987

#57 overall·RD 69

Elo1.983#62 overall

Recent Form

60% Win Rate

Hard

Glicko-21.996#58

Elo1.829#64

Clay

Glicko-21.927#117

Elo1.738#166

Grass

Glicko-21.766#25

Elo1.636#28

Recent Matches

Felix Auger Aliassime

French Open - Paris

2026-05-30Clay5-7 6-1 7-6(4) 7-6(1)

Luca Van Assche

French Open - Paris

2026-05-28Clay6-7(5) 6-4 5-7 6-1 6-3

Roberto Bautista Agut

French Open - Paris

2026-05-25Clay6-2 7-5 6-2

Nikoloz Basilashvili

Internazionali BNL d'Italia - Rome

2026-05-11Clay7-6(5) 6-4

Roberto Bautista Agut

Internazionali BNL d'Italia - Rome

2026-05-09Clay6-4 6-0

Alexander Blockx

Mutua Madrid Open - Madrid

2026-04-25Clay3-6 6-3 6-4

Arthur Fils

Barcelona Open Banc Sabadell - Barcelona

2026-04-16Clay6-2 6-3

Juan Manuel Cerundolo

Barcelona Open Banc Sabadell - Barcelona

2026-04-14Clay6-3 7-5

Roman Andres Burruchaga

US Men's Clay Court Championship - Houston

2026-04-02Clay6-4 2-6 6-4

Martin Damm

US Men's Clay Court Championship - Houston

2026-04-01Clay7-6(0) 6-2

Marin Cilic

Miami Open - Miami

2026-03-21Hard2-6 6-4 7-6(7)

Alexander Zverev

BNP Paribas Open - Indian Wells

2026-03-08Hard7-6(2) 5-7 6-4

Camilo Ugo Carabelli

BNP Paribas Open - Indian Wells

2026-03-06Hard6-3 6-4

Frances Tiafoe

Abierto Mexicano Telcel - Acapulco

2026-02-27Hard3-6 7-6(6) 6-4

Valentin Vacherot

Abierto Mexicano Telcel - Acapulco

2026-02-26Hard2-6 6-2 6-3

Patrick Kypson

Abierto Mexicano Telcel - Acapulco

2026-02-25Hard6-4 6-4

Elias Ymer

Abierto Mexicano Telcel - Acapulco

2026-02-23Hard6-3 6-4

Chak Lam Coleman Wong

Delray Beach Open - Delray Beach

2026-02-18Hard6-4 7-6(4)

Marin Cilic

Delray Beach Open - Delray Beach

2026-02-17Hard7-6(4) 7-6(5)

Taylor Fritz

Dallas Open - Dallas

2026-02-11I.Hard6-3 6-4

Mattia Bellucci

Dallas Open - Dallas

2026-02-09I.Hard6-3 6-4

Botic Van De Zandschulp

Australian Open - Melbourne

2026-01-19Hard6-3 4-6 7-6(1) 7-6(3)

Daniil Medvedev