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

Zachary Svajda

MENRising

Age23

BirthplaceLa Jolla, USA

Height1.75m

Weight70kg

Best HandRight

BackhandTwo-Handed

Recent Form

Win Rate:50%

Fatigue:0/100

Inactive:20 Days

Overall

Glicko-21.982

#64RD 66

Elo2.031

#42

Hard

Glicko-22.041

#36

Elo1.881

#36

Clay

Glicko-21.944

#110

Elo1.640

#453

Grass

Glicko-21.650

#75

Elo1.643

#33

Surface Record

HardClayGrass

20262-54-32-2

20252-3——

20244-8—0-1

20231-3——

20220-1——

20211-2——

Recent Matches

Alex De MinaurWimbledon - London2026-07-04Grass6-2 5-7 6-2 6-4

Kamil MajchrzakWimbledon - London2026-07-02Grass2-6 6-2 6-7(5) 6-4 6-3

Pablo Llamas RuizWimbledon - London2026-06-30Grass6-1 6-2 6-4

Damir DzumhurMallorca Championships - Mallorca2026-06-21Grass6-3 6-3

Marc-Andrea HueslerMallorca Championships - Mallorca2026-06-20Grass6-3 6-3

Tommy PaulHSBC Championships - London2026-06-15Grass7-5 6-3

Martin DammHSBC Championships - London2026-06-14Grass6-3 7-6(2)

Liam BroadyHSBC Championships - London2026-06-13Grass7-5 6-2

Flavio CobolliFrench Open - Paris2026-06-01Clay6-2 6-3 6-7(3) 7-6(5)

Francisco CerundoloFrench Open - Paris2026-05-30Clay6-3 6-4 3-6 4-6 6-3

Adam WaltonFrench Open - Paris2026-05-28Clay6-3 6-4 6-7(4) 6-2

Alexei PopyrinFrench Open - Paris2026-05-26Clay3-6 6-3 7-6(3) 7-5

Max Hans RehbergGonet Geneva Open - Geneva2026-05-16Clay6-2 6-2

Casper RuudInternazionali BNL d'Italia - Rome2026-05-08Clay6-1 6-3

Marco TrungellitiInternazionali BNL d'Italia - Rome2026-05-06Clay0-6 6-4 7-6(4)

Hubert HurkaczCagliari Challenger2026-04-28Clay6-2 7-6(8)

Rei SakamotoMutua Madrid Open - Madrid2026-04-20Clay7-6(9) 6-1

Adolfo Daniel VallejoUS Men's Clay Court Championship - Houston2026-03-30Clay6-1 6-4

Moise KouameMiami Open - Miami2026-03-19Hard5-7 6-4 6-4

Colton SmithMiami Open - Miami2026-03-17Hard6-7(6) 6-3 6-1

Daniel Merida AguilarMiami Open - Miami2026-03-17Hard6-0 6-7(2) 6-2

Alejandro Davidovich FokinaBNP Paribas Open - Indian Wells2026-03-06Hard7-6(0) 6-2

Marin CilicBNP Paribas Open - Indian Wells2026-03-04Hard7-6(5) 6-4

Sho ShimabukuroAbierto Mexicano Telcel - Acapulco2026-02-22Hard5-1 ret.

Andres MartinAbierto Mexicano Telcel - Acapulco2026-02-21Hard6-0 6-0

Frances TiafoeDelray Beach Open - Delray Beach2026-02-19Hard6-4 3-6 7-5

Aleksandar KovacevicDelray Beach Open - Delray Beach2026-02-17Hard7-6(4) 6-3

Yibing WuDelray Beach Open - Delray Beach2026-02-15Hard6-3 6-4

Liam DraxlDelray Beach Open - Delray Beach2026-02-14Hard6-2 6-1

Alejandro Davidovich FokinaDallas Open - Dallas2026-02-09I.Hard6-4 7-6(1)

Tristan BoyerDallas Open - Dallas2026-02-08I.Hard6-3 5-7 6-4

Unknown PlayerDallas Open - Dallas2026-02-07I.Hard6-3 6-2

Sebastian KordaSan Diego Challenger2026-02-01Hard6-4 7-6(5)

Sho ShimabukuroSan Diego Challenger2026-01-31Hard6-4 6-1

Mitchell KruegerSan Diego Challenger2026-01-30Hard6-3 2-6 6-2

Keegan SmithSan Diego Challenger2026-01-29Hard7-6(2) 6-4

Evan ZhuSan Diego Challenger2026-01-28Hard6-2 6-4

Yannick HanfmannAustralian Open - Melbourne2026-01-18Hard7-5 4-6 6-4 7-6(3)

Kimmer CoppejansAustralian Open - Melbourne2026-01-15Hard7-6(5) 6-2

Jurij RodionovAustralian Open - Melbourne2026-01-14Hard6-1 6-4

Hady HabibAustralian Open - Melbourne2026-01-13Hard6-1 6-3

Lloyd HarrisChengdu Open - Chengdu2025-09-16Hard6-4 6-7(5) 6-2

Novak DjokovicU.S. Open - New York2025-08-27Hard6-7(5) 6-3 6-3 6-1

Zsombor PirosU.S. Open - New York2025-08-24Hard6-4 6-2 7-5

Marc-Andrea HueslerU.S. Open - New York2025-08-22Hard6-3 6-2

Beibit ZhukayevU.S. Open - New York2025-08-21Hard6-3 7-5

August HolmgrenU.S. Open - New York2025-08-19Hard6-2 7-6(1)

Arthur FeryCincinnati Open - Cincinnati2025-08-05Hard7-6(3) 4-6 7-6(4)

Bernard TomicLexington Challenger2025-08-03Hard2-6 6-3 6-2

Yu Hsiou HsuLexington Challenger2025-08-02Hard6-1 6-3

Simulate a match with SvajdaGet win probability, VOPO edge vs Sharp Market odds, and Glicko-2 breakdown.

Open Simulator →