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

Darja Semenistaja

WTA14d inactive

Glicko-21.875

#145 overall·RD 65

Elo1.865#168 overall

Recent Form

40% Win Rate

Hard

Glicko-21.842#176

Elo1.697#266

Clay

Glicko-21.935#112

Elo1.802#78

Grass

Glicko-21.481#2323

Elo1.515#157

Recent Matches

Katarina Zavatska

French Open - Paris

2026-05-20Clay7-5 5-7 6-2

Iryna Shymanovich

French Open - Paris

2026-05-19Clay6-4 6-0

Katie Volynets

Internazionali BNL d'Italia - Rome

2026-05-04Clay6-2 6-0

Noma Akugue Noha

W100 Wiesbaden

2026-05-01Clay0-6 6-3 6-3

Elizara Yaneva

W100 Wiesbaden

2026-04-30Clay7-5 6-4

Lucie Havlickova

W100 Wiesbaden

2026-04-29Clay6-4 6-2

Whitney Osuigwe

Oeiras Open CETO - Oeiras

2026-04-24Clay7-5 6-4

Anna-Lena Friedsam

Oeiras Open CETO - Oeiras

2026-04-21Clay6-4 6-1

Sinja Kraus

Oeiras Jamor Ladies Open - Oeiras

2026-04-17Clay6-3 6-2

Tessa Johanna Brockmann

Oeiras Jamor Ladies Open - Oeiras

2026-04-16Clay6-4 6-3

Leolia Jeanjean

Oeiras Jamor Ladies Open - Oeiras

2026-04-14Clay3-6 6-4 6-4

Lisa Pigato

Grand Prix Open Villa de Madrid - Madrid

2026-04-07Clay4-6 6-2 6-3

Marie Bouzkova

Copa Colsanitas - Bogota

2026-04-03Clay6-1 7-5

Despina Papamichail

Copa Colsanitas - Bogota

2026-04-01Clay6-1 1-6 6-2

Ella Seidel

Copa Colsanitas - Bogota

2026-03-31Clay6-2 6-2

Elisabetta Cocciaretto

Miami Open - Miami

2026-03-19Hard6-4 6-1

Sinja Kraus

Miami Open - Miami

2026-03-17Hard6-2 6-3

Monika Ekstrand

Miami Open - Miami

2026-03-16Hard6-0 6-4

Kayla Day

BNP Paribas Open - Indian Wells

2026-03-03Hard6-2 6-1

Whitney Osuigwe

BNP Paribas Open - Indian Wells

2026-03-01Hard2-6 6-1 6-3

Aliona Bolsova

Open Arena - Les Sables d'Olonne

2026-02-17I.Hard6-3 3-1 ret.

Lilli Tagger

Mumbai Open - Mumbai

2026-02-06Hard4-6 6-4 6-2

Mai Hontama

Mumbai Open - Mumbai

2026-02-04Hard6-4 7-6(3)

Diletta Cherubini

Mumbai Open - Mumbai

2026-02-03Hard6-3 6-1

Yexin Ma

Philippine Women's Open - Manila

2026-01-27Hard6-1 7-6(6)

Linda Noskova

Australian Open - Melbourne

2026-01-19Hard6-3 6-0

Elisabetta Cocciaretto

Hobart International - Hobart

2026-01-11Hard6-3 7-5

Moyuka Uchijima

Hobart International - Hobart

2026-01-10Hard7-6(2) 7-6(6)

Whitney Osuigwe

ASB Classic - Auckland

2026-01-04Hard6-2 2-6 7-5

Cadence Brace

ASB Classic - Auckland

2026-01-03Hard6-3 6-3

Sofia Costoulas

Torneo Internazionale - Rovereto

2025-10-24Hard4-6 6-3 6-3

Noma Akugue Noha

Torneo Internazionale - Rovereto

2025-10-23Hard6-4 4-6 6-1

Noemi Basiletti

Torneo Internazionale - Rovereto

2025-10-21Hard7-6(2) 6-2

Linda Klimovicova