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

Nuria Brancaccio

WTA1d inactive

Glicko-21.770

#298 overall·RD 74

Elo1.750#353 overall

Recent Form

0% Win Rate

Hard

Glicko-21.578#835

Elo1.466#1554

Clay

Glicko-21.837#215

Elo1.705#203

Grass

Glicko-21.393#2398

Elo1.436#1990

Recent Matches

Tatiana Prozorova

Open delle Puglie - Foggia

2026-06-02Clay6-4 6-0

Kaitlin Quevedo

French Open - Paris

2026-05-19Clay4-6 6-1 7-5

Anastasiia Sobolieva

W75 Trnava

2026-05-12Clay3-6 6-2 6-2

Taylor Townsend

Internazionali BNL d'Italia - Rome

2026-05-06Clay6-3 6-2

Anna Blinkova

Mutua Madrid Open - Madrid

2026-04-20Clay6-7(3) 7-5 6-4

Petra Marcinko

Oeiras Jamor Ladies Open - Oeiras

2026-04-13Clay7-5 6-1

Jessika Ponchet

Grand Prix Open Villa de Madrid - Madrid

2026-04-06Clay7-6(5) 6-1

Anhelina Kalinina

Dubrovnik Open - Dubrovnik

2026-03-26Clay6-0 6-2

Lisa Pigato

Dubrovnik Open - Dubrovnik

2026-03-24Clay6-2 7-5

Veronika Erjavec

Megasaray Hotels Open 3 - Antalya

2026-03-13Clay6-4 6-1

Julia Grabher

Megasaray Hotels Open 3 - Antalya

2026-03-12Clay3-6 6-3 6-1

Lucia Bronzetti

Megasaray Hotels Open 3 - Antalya

2026-03-11Clay6-1 7-5

Oleksandra Oliynykova

Megasaray Hotels Open 2 - Antalya

2026-03-03Clay2-6 6-3 6-0

Veronika Erjavec

Megasaray Hotels Open 1 - Antalya

2026-02-27Clay7-6(4) 0-6 6-2

Panna Udvardy

Megasaray Hotels Open 1 - Antalya

2026-02-26Clay6-7(9) 6-2 7-5

Ada Kumru

Megasaray Hotels Open 1 - Antalya

2026-02-24Clay6-2 6-2

Luisina Giovannini

W35 Antalya 3

2026-02-14Clay6-4 2-2 ret.

Aurora Zantedeschi

W35 Antalya 3

2026-02-14Clay6-1 5-7 6-4

Eva Marie Voracek

W35 Antalya 3

2026-02-12Clay6-3 7-5

Nina Vargova

W35 Antalya 3

2026-02-11Clay4-6 6-2 ret.

Daria Khomutsianskaya

W50 Monastir 1

2026-01-22Hard7-6(4) 3-6 6-4

Mary Stoiana

Australian Open - Melbourne

2026-01-12Hard7-5 4-6 7-5

Lina Gjorcheska

Torneo Internazionale - Rovereto

2025-10-20Hard6-4 6-3

Kira Pavlova

W75 Quinta do Lago 1

2025-10-17Hard3-6 6-4 6-0

Kathinka Von Deichmann

W75 Quinta do Lago 1

2025-10-16Hard7-5 6-1

Yasmine Mansouri

W75 Quinta do Lago 1

2025-10-14Hard6-4 7-6(3)

Maria Lourdes Carle

Mallorca Women's Championships - Mallorca

2025-10-07Clay7-6(5) 1-6 7-5

Carson Branstine

Mallorca Women's Championships - Mallorca

2025-10-05Clay7-6(0) 6-3

Sara Bejlek

Internazionali Di Calabria - Rende

2025-10-03Clay6-4 4-6 6-3

Carson Branstine

Internazionali Di Calabria - Rende

2025-10-01Clay7-6(2) 7-5

Barbora Palicova

Internazionali Di Calabria - Rende

2025-09-29Clay5-7 6-0 6-1

Oleksandra Oliynykova