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

Gabriela Andrea Knutson

WTA1d inactive44 Low Fatigue

Glicko-21.773

#289 overall·RD 68

Elo1.759#339 overall

Recent Form

40% Win Rate

Hard

Glicko-21.753#320

Elo1.672#319

Clay

Glicko-21.689#485

Elo1.489#1381

Grass

Glicko-21.601#98

Elo1.517#155

Recent Matches

Joanna Garland

Lexus Birmingham Open - Birmingham

2026-06-02Grass7-6(6) 6-3

Ashlyn Krueger

Lexus Birmingham Open - Birmingham

2026-05-31Grass6-4 7-6(5)

Anouck Vrancken Peeters

Lexus Birmingham Open - Birmingham

2026-05-30Grass4-6 6-4 6-2

Martina Trevisan

French Open - Paris

2026-05-18Clay2-6 6-0 6-2

Caroline Werner

W75 Trnava

2026-05-13Clay6-0 6-4

Radka Zelnickova

W75 Trnava

2026-05-12Clay7-5 7-5

Taylah Preston

W100 Gifu

2026-04-29Hard6-2 6-3

Polina Iatcenko

W100 Tokyo

2026-04-24Hard7-6(5) 4-6 6-2

Emerson Jones

W100 Tokyo

2026-04-23Hard6-4 6-7(2) 7-6(5)

Hong Yi Cody Wong

W100 Tokyo

2026-04-22Hard6-3 6-4

Ekaterina Alexandrova

Porsche Tennis Grand Prix - Stuttgart

2026-04-14Clay6-2 6-2

Vera Zvonareva

Porsche Tennis Grand Prix - Stuttgart

2026-04-12Clay6-3 6-3

Carole Monnet

Porsche Tennis Grand Prix - Stuttgart

2026-04-11Clay6-1 3-6 7-6(6)

Jessica Pieri

W75 Calvi

2026-04-08Hard2-6 6-4 6-4

Greetje Minnen

W75 Murska Sobota 1

2026-03-28I.Hard6-1 7-6(6)

Jessika Ponchet

W75 Murska Sobota 1

2026-03-26I.Hard6-3 7-6(4)

Kristina Novak

W75 Murska Sobota 1

2026-03-25I.Hard0-6 7-6(2) 6-3

Tatiana Prozorova

W75 Maribor 1

2026-03-17I.Hard6-2 2-6 6-1

Kajsa Rinaldo Persson

W75 Porto 2

2026-02-24I.Hard7-5 6-1

Ayana Akli

Oeiras 2 Jamor Indoor - Oeiras

2026-02-16I.Hard6-4 1-0 ret.

Tereza Martincova

W75 Prague 1

2026-02-12I.Hard6-3 3-6 6-1

Jule Niemeier

W75 Prague 1

2026-02-11I.Hard6-1 6-3

Vendula Valdmannova

Ostrava Open - Ostrava

2026-02-01I.Hard6-2 5-7 6-3

Anastasiia Sobolieva

Ostrava Open - Ostrava

2026-01-31I.Hard6-1 6-3

Lizette Cabrera

Australian Open - Melbourne

2026-01-12Hard7-5 6-0

Iva Jovic

ASB Classic - Auckland

2026-01-05Hard4-6 6-1 6-0

Maja Chwalinska

ASB Classic - Auckland

2026-01-04Hard6-3 6-2

Leyre Romero Gormaz

ASB Classic - Auckland

2026-01-03Hard6-3 6-4

Elsa Jacquemot

Open BLS de Limoges - Limoges

2025-12-11I.Hard6-3 6-2

Alina Charaeva

Open BLS de Limoges - Limoges

2025-12-09I.Hard2-6 7-6(3) 6-4

Alycia Parks

Open In Arte Angers Loire - Angers

2025-12-02I.Hard6-3 6-1

Kajsa Rinaldo Persson

W75 Glasgow 1

2025-10-30I.Hard7-5 6-1

Gina Marie Dittmann

W75 Glasgow 1

2025-10-29I.Hard6-3 6-1

Lucrezia Stefanini

Torneo Internazionale - Rovereto

2025-10-24Hard6-3 6-2

Eva Guerrero Alvarez

Torneo Internazionale - Rovereto

2025-10-22Hard4-6 6-1 6-1

Dalila Jakupovic

Torneo Internazionale - Rovereto

2025-10-20Hard6-0 6-0

Kaitlin Quevedo

W100 Les Franqueses del Valles 1

2025-10-16Hard6-3 6-3

Justina Mikulskyte

W100 Les Franqueses del Valles 1

2025-10-14Hard6-2 6-3

Lucie Havlickova

W75 Bratislava 1

2025-10-03I.Hard6-4 6-2

Maaya Rajeshwaran Revathi

W75 Bratislava 1

2025-10-01I.Hard6-2 0-1 ret.

Polina Iatcenko