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

Patrick Kypson

ATP28d inactive

Glicko-21.900

#143 overall·RD 65

Elo1.847#185 overall

Recent Form

40% Win Rate

Hard

Glicko-21.954#99

Elo1.740#183

Clay

Glicko-21.843#242

Elo1.672#332

Grass

Glicko-21.389#3277

Elo1.486#2763

Recent Matches

Aleksandar Vukic

Internazionali BNL d'Italia - Rome

2026-05-06Clay6-3 5-7 6-0

Titouan Droguet

Internazionali BNL d'Italia - Rome

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

Jack Pinnington Jones

Internazionali BNL d'Italia - Rome

2026-05-04Clay6-7(7) 7-6(4) 6-3

Matteo Berrettini

Cagliari Challenger

2026-04-28Clay6-4 6-7(5) 7-6(5)

Stefanos Tsitsipas

Mutua Madrid Open - Madrid

2026-04-23Clay3-6 7-6(6) 7-6(4)

Nikoloz Basilashvili

Mutua Madrid Open - Madrid

2026-04-21Clay6-7(2) 7-6(3) 6-4

Moise Kouame

Mutua Madrid Open - Madrid

2026-04-20Clay6-2 6-2

Sebastian Ofner

Barcelona Open Banc Sabadell - Barcelona

2026-04-12Clay6-4 6-4

Arthur Gea

Barcelona Open Banc Sabadell - Barcelona

2026-04-11Clay6-1 6-4

Alexei Popyrin

US Men's Clay Court Championship - Houston

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

Nikoloz Basilashvili

Miami Open - Miami

2026-03-16Hard6-3 6-1

Daniel Merida Aguilar

BNP Paribas Open - Indian Wells

2026-03-02Hard3-6 6-3 7-6(4)

Brandon Nakashima

Abierto Mexicano Telcel - Acapulco

2026-02-25Hard6-4 6-4

Alex De Minaur

Abierto Mexicano Telcel - Acapulco

2026-02-23Hard6-1 6-7(4) 7-6(4)

Chak Lam Coleman Wong

Abierto Mexicano Telcel - Acapulco

2026-02-22Hard6-3 6-0

Stefan Kozlov

Abierto Mexicano Telcel - Acapulco

2026-02-21Hard7-6(3) 6-0

Terence Atmane

Delray Beach Open - Delray Beach

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

Aleksandar Kovacevic

Dallas Open - Dallas

2026-02-10I.Hard6-4 7-6(1)

Jack Pinnington Jones

Dallas Open - Dallas

2026-02-08I.Hard7-6(4) 5-7 7-5

Pedro Sakamoto

Dallas Open - Dallas

2026-02-07I.Hard6-2 6-1

Sebastian Korda

San Diego Challenger

2026-01-31Hard7-6(4) 6-2

Colton Smith

San Diego Challenger

2026-01-30Hard7-6(5) 6-0

Garrett Johns

San Diego Challenger

2026-01-29Hard7-6(4) 6-2

Tyler Zink

San Diego Challenger

2026-01-28Hard7-6(5) 6-1

Francisco Comesana

Australian Open - Melbourne

2026-01-18Hard6-2 6-3 3-6 6-3

Emilio Nava

ASB Classic - Auckland

2026-01-10Hard6-3 6-4

Michael Mmoh

Hong Kong Tennis Open - Hong Kong

2026-01-05Hard6-2 3-6 6-4

Vitaliy Sachko

Hong Kong Tennis Open - Hong Kong

2026-01-04Hard6-2 6-3

Otto Virtanen

Helsinki Challenger

2025-11-09I.Hard4-6 6-3 6-4

Stefano Travaglia

Helsinki Challenger

2025-11-08I.Hard7-6(5) 3-6 6-2

Lorenzo Giustino

Helsinki Challenger

2025-11-07I.Hard6-4 6-2

Calvin Hemery

Helsinki Challenger

2025-11-05I.Hard3-6 6-2 7-6(5)

Geoffrey Blancaneaux

Helsinki Challenger

2025-11-04I.Hard5-7 6-1 6-3

Daniil Glinka

Charlottesville Challenger

2025-10-28I.Hard6-3 6-3

Johannus Monday

Sioux Falls Challenger

2025-10-26I.Hard6-7(2) 7-6(4) 7-5

Antoine Ghibaudo

Sioux Falls Challenger

2025-10-25I.Hard6-3 6-1

Rinky Hijikata

Sioux Falls Challenger

2025-10-24I.Hard6-4 6-4

Rafael Jodar

Sioux Falls Challenger

2025-10-23I.Hard6-4 6-4

Oliver Tarvet

Sioux Falls Challenger

2025-10-21I.Hard6-2 4-6 6-3

Rafael Jodar

Lincoln Challenger

2025-10-18I.Hard6-3 6-3

Dhakshineswar Suresh

Lincoln Challenger

2025-10-17I.Hard7-6(4) 6-0

Samir Banerjee

Lincoln Challenger

2025-10-15I.Hard6-4 7-6(5)

Mats Rosenkranz

Lincoln Challenger

2025-10-14I.Hard6-2 6-4

Nicolai Budkov Kjaer