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.

Men's
Rankings.

UPDATED: JULY 24, 2026 AT 03:15 AM UTC

Rank	Player	Recent Form	Glicko Pts	RD	Hard	Clay	Grass
#1	Jannik Sinner-Hot	W W W W W	2.524(#1)	81	2.513(#1)	2.600(#1)	2.324(#1)
#2	Carlos Alcaraz-	W W W L W	2.417(#2)	78	2.420(#2)	2.531(#2)	2.182(#2)
#3▲1	Alexander Zverev-Hot	W W W W L	2.297(#3)	64	2.244(#4)	2.396(#3)	2.029(#4)
#4▲1	Novak Djokovic-Hot	W W W W L	2.277(#4)	85	2.321(#3)	2.089(#33)	2.099(#3)
#5▲14	Arthur Fils-	W L L W L	2.197(#5)	77	2.175(#8)	2.355(#4)	1.559(#161)
#6▲45	Felix Auger Aliassime-Hot	W W W W L	2.142(#6)	65	2.189(#6)	2.097(#28)	1.796(#21)
#7	Taylor Fritz-Hot	W W W W L	2.142(#7)	67	2.110(#17)	1.732(#496)	2.016(#5)
#8▲2	Tommy Paul-Rising	W L W W L	2.142(#8)	66	2.092(#24)	2.220(#8)	1.727(#36)
#9▲94	Rafael Jodar-Hot	W L W W L	2.135(#9)	65	2.077(#27)	2.305(#5)	1.581(#132)
#10▲3	Daniil Medvedev-	W L W W L	2.127(#10)	68	2.203(#5)	2.100(#27)	1.742(#31)
#11▼5	Alex De Minaur-Rising	L W W W L	2.126(#11)	66	2.185(#7)	2.128(#18)	1.861(#10)
#12▼3	Casper Ruud-	W L L W L	2.123(#12)	69	2.028(#39)	2.280(#6)	1.432(#3076)
#13▼5	Lorenzo Musetti-	W L W W L	2.120(#13)	71	2.100(#21)	2.193(#9)	1.731(#34)
#14▼11	Jack Draper-	L W W W L	2.117(#14)	91	2.150(#10)	2.088(#35)	1.815(#19)
#15▲40	Frances Tiafoe-Hot	W W W W L	2.115(#15)	63	2.096(#22)	2.074(#40)	1.887(#8)
#16▲6	Jiri Lehecka-Hot	L W W W L	2.112(#16)	68	2.119(#13)	2.149(#16)	1.823(#17)
#17▲8	Ben Shelton-	W W W L L	2.106(#17)	68	2.153(#9)	2.065(#44)	1.935(#6)
#18▲22	Andrey Rublev-51Hot	W W W W W	2.100(#18)	68	2.043(#35)	2.265(#7)	1.539(#183)
#19▼3	Francisco Cerundolo-	W W W W L	2.097(#19)	67	2.105(#18)	2.113(#24)	1.722(#38)
#20▲19	Learner Tien-	L W L W L	2.095(#20)	69	2.137(#12)	2.123(#21)	1.548(#170)
#21▲15	Sebastian Korda-	W L W W L	2.093(#21)	67	2.101(#20)	1.914(#133)	1.506(#225)
#22▼2	Joao Fonseca-Hot	L L W W L	2.088(#22)	71	2.143(#11)	2.124(#20)	1.574(#142)
#23▲64	Flavio Cobolli-Hot	W W W L L	2.083(#23)	64	1.991(#62)	2.169(#14)	1.777(#24)
#24▲11	Jakub Mensik-	W L L W L	2.081(#24)	70	2.096(#23)	2.161(#15)	1.584(#128)
#25▲9	Raphael Collignon-64	W W W L L	2.075(#25)	65	2.084(#26)	2.122(#22)	1.581(#133)
#26▲86	Alexander Bublik-39Hot	W L L W W	2.071(#26)	67	2.102(#19)	2.016(#65)	1.893(#7)
#27▲78	Alexander Blockx-Hot	L W L L W	2.068(#27)	71	2.026(#41)	2.180(#13)	1.519(#201)
#28▼4	Alejandro Davidovich Fokina-Hot	W W L W L	2.064(#28)	64	2.035(#37)	2.027(#57)	1.823(#18)
#29▲126	Dino Prizmic-	L W L W L	2.044(#29)	68	1.972(#84)	2.107(#25)	1.500(#237)
#30▲63	Roman Safiullin-Hot	W W W W L	2.041(#30)	62	1.850(#277)	2.192(#10)	1.723(#37)
#31▲66	Valentin Vacherot-32Rising	L W W L L	2.041(#31)	78	2.091(#25)	2.094(#30)	1.260(#3272)
#32▲64	Luciano Darderi-48Rising	W W W L W	2.038(#32)	66	1.818(#341)	2.189(#11)	1.472(#3017)
#33▼16	Holger Rune-	W L W W L	2.036(#33)	64	2.054(#32)	2.059(#47)	1.672(#60)
#34▼19	Tomas Machac-	W L W W L	2.035(#34)	74	2.017(#46)	2.080(#36)	1.579(#135)
#35▼21	Matteo Berrettini-Hot	W L W W L	2.029(#35)	69	2.073(#28)	2.011(#68)	1.634(#82)
#36▼18	Stefanos Tsitsipas-54Hot	W W W W W	2.028(#36)	68	1.997(#59)	2.094(#31)	1.504(#231)
#37	Ugo Humbert-	W W W L L	2.027(#37)	63	2.024(#42)	1.883(#188)	1.771(#27)
#38▲15	Arthur Fery-Hot	W W W W L	2.025(#38)	63	2.007(#50)	1.843(#254)	1.828(#15)
#39▼11	Hamad Medjedovic-	W L W L L	2.023(#39)	71	1.917(#152)	2.187(#12)	1.455(#3047)
#40	Soon-Woo Kwon-	W W W W L	2.022(#40)	72	2.066(#30)	1.500(#1523)	1.608(#104)
#41	Yannick Hanfmann-51Hot	W L W W W	2.021(#41)	65	2.005(#52)	2.127(#19)	1.578(#137)
#42▲107	Alex Molcan-74Hot	W L W W L	2.020(#42)	63	1.883(#215)	2.095(#29)	1.619(#98)
#43▲1	Hubert Hurkacz-	L W W W L	2.020(#43)	69	1.913(#157)	2.073(#41)	1.756(#28)
#44▲153	Daniel Merida Aguilar-50Hot	W W W W L	2.015(#44)	62	2.017(#47)	2.080(#37)	1.435(#3073)
#45▲45	Pablo Carreno-Busta-42Rising	L W L W L	2.013(#45)	68	1.956(#100)	2.092(#32)	1.507(#224)
#46▲49	Juan Manuel Cerundolo-50	W W W L L	2.010(#46)	64	1.875(#225)	2.078(#38)	1.575(#139)
#47▲13	Brandon Nakashima-	W W L W L	2.009(#47)	69	1.996(#60)	1.927(#125)	1.773(#25)
#48▼19	Kamil Majchrzak-	W W L W L	2.007(#48)	68	1.956(#101)	1.898(#166)	1.836(#13)
#49▼17	Alex Michelsen-38Hot	W W L W W	2.005(#49)	69	2.111(#16)	1.884(#184)	1.629(#86)
#50▲9	Zizou Bergs-Hot	W W W W L	2.001(#50)	63	1.952(#112)	1.868(#216)	1.846(#11)

Men's Rankings.

Men's
Rankings.