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

Roman Safiullin

MENHot

Age28

BirthplacePodolsk, Russia

Height1.85m

Weight75kg

Best HandRight

BackhandTwo-Handed

Recent Form

Win Rate:75%

Fatigue:0/100

Inactive:19 Days

Overall

Glicko-22.041

#30RD 62

Elo2.125

#20

Hard

Glicko-21.850

#277

Elo1.761

#151

Clay

Glicko-22.192

#10

Elo1.889

#33

Grass

Glicko-21.723

#37

Elo1.698

#17

Surface Record

HardClayGrass

2026—0-13-2

20256-100-31-3

202413-163-72-3

202311-134-35-3

20228-61-0—

20211-31-1—

Recent Matches

Novak DjokovicWimbledon - London2026-07-05Grass7-6(6) 6-3 3-6 6-3

Joao FonsecaWimbledon - London2026-07-03Grass6-3 6-3 6-3

Botic Van De ZandschulpWimbledon - London2026-07-01Grass6-0 4-6 6-3 3-6 7-6(5)

Andrey RublevWimbledon - London2026-06-29Grass6-4 6-7(6) 3-6 6-3 7-6(12)

Jerome KymWimbledon - London2026-06-25Grass4-6 7-6(2) 3-6 7-6(6) 6-4

Kimmer CoppejansWimbledon - London2026-06-24Grass7-6(2) 7-5

James McCabeWimbledon - London2026-06-22Grass6-3 7-6(4)

Zhizhen ZhangNottingham 2 Challenger2026-06-18Grass6-7(4) 7-6(11) 6-1

August HolmgrenNottingham 2 Challenger2026-06-16Grass6-3 6-2

Oliver TarvetNottingham 2 Challenger2026-06-15Grass4-6 6-3 6-2

Giovanni Mpetshi PerricardBoss Open - Stuttgart2026-06-09Grass7-5 6-7(4) 7-6(4)

Alexis GalarneauBoss Open - Stuttgart2026-06-07Grass6-4 6-7(1) 7-6(5)

Petr Bar BiryukovBoss Open - Stuttgart2026-06-06Grass6-7(8) 7-6(1) 6-3

Casper RuudFrench Open - Paris2026-05-25Clay6-2 7-6(5) 5-7 0-6 6-2

Tom GentzschFrench Open - Paris2026-05-22Clay6-3 6-7(2) 6-4

Joel SchwaerzlerFrench Open - Paris2026-05-20Clay6-4 6-4

Mark LajalFrench Open - Paris2026-05-19Clay6-4 6-4

Laslo DjereOeiras 4 Challenger2026-05-13Clay6-4 7-5

Henrique RochaOeiras 4 Challenger2026-05-11Clay5-7 7-6(5) 6-2

Jaime FariaMauthausen Challenger2026-05-03Clay4-6 6-4 7-6(4)

Lukas NeumayerMauthausen Challenger2026-05-02Clay6-3 3-6 6-2

David Jorda SanchisMauthausen Challenger2026-05-01Clay6-3 3-6 6-1

Titouan DroguetMauthausen Challenger2026-04-30Clay6-2 4-6 6-4

Cezar CretuMauthausen Challenger2026-04-28Clay6-2 6-4

Valentin RoyerOeiras 3 Challenger2026-04-19Clay6-1 6-2

Henrique RochaOeiras 3 Challenger2026-04-18Clay6-4 6-4

Jaime FariaOeiras 3 Challenger2026-04-17Clay4-6 6-3 7-6(1)

Luca Van AsscheOeiras 3 Challenger2026-04-16Clay7-5 3-6 6-2

Felix GillOeiras 3 Challenger2026-04-14Clay4-6 7-6(5) 3-1 ret.

Tiago TorresOeiras 3 Challenger2026-04-13Clay4-6 6-1 6-4

Joao SilvaOeiras 3 Challenger2026-04-12Clay4-6 6-2 6-1

Joel SchwaerzlerMadrid Challenger2026-04-09Clay6-3 6-4

Diego DeduraMadrid Challenger2026-04-07Clay6-4 7-5

Pablo Llamas RuizAlicante Challenger2026-03-28Clay6-4 7-5

Max HoukesAlicante Challenger2026-03-27Clay6-4 6-1

Jan ChoinskiAlicante Challenger2026-03-26Clay6-2 6-3

Gilles Arnaud BaillyAlicante Challenger2026-03-24Clay6-1 6-4

Jan ChoinskiThionville Challenger2026-03-04I.Hard4-6 7-5 7-5

Timofey SkatovThionville Challenger2026-03-02I.Hard7-6(3) 6-3

Clement ChidekhSt. Brieuc Challenger2026-02-23I.Hard6-3 6-1

Alexander BlockxLille Challenger2026-02-17I.Hard6-2 6-2

Felix Auger AliassimeU.S. Open - New York2025-08-28Hard6-1 7-6(4) 7-6(5)

Gael MonfilsU.S. Open - New York2025-08-26Hard6-4 2-6 6-1 3-6 6-4

Christopher O'ConnellWinston-Salem Open - Winston-Salem2025-08-18Hard6-3 6-3

Holger RuneCincinnati Open - Cincinnati2025-08-09Hard7-5 7-6(5)

Alejandro TabiloCincinnati Open - Cincinnati2025-08-07Hard6-3 6-3

Casper RuudNational Bank Open - Toronto2025-07-29Hard6-3 6-3

Ugo BlanchetNational Bank Open - Toronto2025-07-27Hard4-6 6-2 7-6(9)

Luciano DarderiWimbledon - London2025-06-30Grass7-6(3) 1-6 6-7(2) 6-3 6-1

Hamad MedjedovicMallorca Championships - Mallorca2025-06-24Grass6-4 3-6 7-6(4)

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