Flex 2001

Flex is the measure of the racquet's stiffness; high flex numbers mean a stiff racquet. Low flex is good for absorbing the impact energy, but high flex is good for bounce. Since bounce was assumed the same for all racquets (COR = 0.85 under all benchmark conditions, for all models), and flex was an evaluation criterion, the rankings here give preference to low flex.

Flex Rank	Flex Rankings 2001		Flex
1	Wavex	AD 3004	48
2	Cayman	Pro Talis II Long	52
3	Cayman	Pro Heat II	53
4	Yonex	RD-7	54
5	Yonex	Ultimum RD Ti-50 Long	55
6	Cayman	Airlite	56
6	Cayman	Pro Smash II Long	56
6	Dunlop	200 G 95	56
6	Head	Ti.Radical OS	56
6	Volkl	C10 Pro	56
6	Yonex	Super RQ Ti-400 Long 105	56
12	Cayman	Pro Talis II	57
12	Gamma	Diamond Fiber F-8.0	57
12	Wilson	Hyper Pro Staff 6.5 OS	57
15	Cayman	Energizer Ti	58
15	Wavex	AD2002	58
17	Cayman	Pro Smash II	59
17	Head	Classic Mid	59
17	Head	Classic MP	59
17	Head	I.Prestige Mid	59
17	Volkl	C10 Pro Tour	59
17	Yonex	Ultimum Ti-1500 Long 105	59
23	Cayman	Energizer II	60
23	Wilson	Hyper Pro Staff 6.5 MP	60
23	Wilson	Pro Staff 6.6 Titanium MP	60
23	Yonex	RD Ti-70 Long 98	60
27	Head	Ti.Radical MP	61
28	Gamma	Diamond Fiber C-3.0 OS	62
28	Gamma	Diamond Fiber F-9.5	62
28	Prince	Precision Graphite Classic OS	62
28	Prince	Triple Threat Graphite OS	62
28	Slazenger	Pro Braided Extreme	62
28	Volkl	Quantum Force	62
28	Yonex	Super RQ Ti-350 Long	62
35	Babolat	Soft Control	63
35	Fischer	Pro Extreme	63
35	Fischer	Pro Tour	63
35	Gamma	Diamond Fiber M-5.0	63
35	Prince	Thunder Cloud Titanium OS	63
35	Volkl	Quantum 10 Tour	63
35	Wilson	Hyper Hammer 6.3 Light OS	63
35	Wilson	Hyper Hammer 6.3 Traditional OS	63
35	Wilson	Pro Staff 6.6 Titanium OS	63
35	Yonex	Ultimum Ti-1700 Long 110	63
45	Cayman	Sidewinder Ti	64
45	Dunlop	Adrenalin Rush 108	64
45	Fischer	GDS 700 Titanium	64
45	Head	Ti.Fire Tour Edition XL	64
45	Prince	Precision Graphite Classic MP	64
45	Prince	Triple Threat Graphite MP	64
45	Pro Kennex	Kinetic Pro 5g	64
45	Volkl	C-10 Pro Oversize	64
45	Wavex	Super Wave	64
45	Weed	3/4 Weed XL	64
45	Weed	T-Zone Plus	64
45	Yonex	RD Ti-70 88	64
45	Yonex	Ultimum Ti-1700 Long 98	64
58	Head	I.Prestige MP XL	65
58	Volkl	Quantum 10	65
58	Weed	T-Zone	65
58	Wilson	Hyper Hammer 5.2 MP	65
58	Yonex	RD Ti-40 Muscle Long	65
63	Dunlop	Adrenalin Surge 108	66
63	Gamma	Diamond Fiber F-9.0 MP	66
63	Prince	Triple Threat Rebel 95	66
63	Pro Kennex	Kinetic Pro 7g	66
63	Wilson	Hyper Hammer 6.3 Light MP	66
63	Wilson	Hyper Hammer 6.3 Traditional MP	66
69	Babolat	VS Control	67
69	Babolat	VS Drive	67
69	Cayman	Catalyst II	67
69	Cayman	Excel Comp II	67
69	Dunlop	200 G 100	67
69	Dunlop	200G OS 108	67
69	Fischer	GDS Spice	67
69	Gamma	Diamond Fiber C-3.0 MP	67
69	Gamma	Diamond Fiber M-5.5	67
69	Gosen	Carbon Plus I	67
69	Head	Ti.S8 XL	67
69	Prince	Triple Threat Warrior MP	67
69	Prince	Triple Threat Warrior OS	67
69	Wavex	AD 2011	67
69	Wilson	Hyper Hammer 5.9 OS	67
69	Wilson	Pro Staff 6.0 Original 85	67
69	Yonex	Super RQ Ti-380 Muscle Long	67
86	Blackburne	DS-107	68
86	Dunlop	Concave 115	68
86	Gamma	Diamond Fiber M-4.5 OS	68
86	Gosen	Tri Tube 400C	68
86	Prince	Triple Threat Bandit 110	68
86	Prince	Triple Threat Vendetta 95	68
86	Slazenger	Pro Braided	68
86	Volkl	Quantum V1 MP	68
86	Volkl	V1 Classic	68
86	Wilson	Rollers 6.6 MP (Hyper Hammer)	68
86	Wilson	Rollers 7.6 MP (Hyper Pro Staff)	68
97	Babolat	Pure Control	69
97	Babolat	Soft Drive	69
97	Cayman	Pro Magic	69
97	Dunlop	Adrenalin Rush 98	69
97	Dunlop	Inferno 110	69
97	Fischer	GDS Rally	69
97	Gosen	Carbon 15	69
97	Head	Ti.S4 Comfort Zone XL	69
97	Prince	Triple Threat Grande (Tungsten) SOS	69
97	Prince	Triple Threat Vendetta 110	69
97	Pro Kennex	Kinetic Pro 15g	69
97	Pro Kennex	Kinetic Charged Light 17g	69
97	Pro Kennex	Ti Intensity PBT Reach	69
97	Volkl	Quantum V1 Oversize	69
97	Wavex	AD 3002	69
97	Wilson	Hyper Hammer 5.9 MP	69
97	Wilson	Hyper Pro Staff 5.0 Stretch OS	69
114	Dunlop	C-Max 108	70
114	Fischer	GDS Take Off	70
114	Gamma	Diamond Fiber C-2.0	70
114	Gamma	Diamond Fiber M-4.5 MP	70
114	Head	I.S18	70
114	Head	Ti.Laser Comfort Zone XL	70
114	Volkl	Quantum 8	70
114	Yonex	Muscle Power 5i MP	70
114	Yonex	Super RQ Ti-700 Long	70
114	Yonex	Super RQ Ti-800 Long	70
124	Babolat	Pure Drive	71
124	Babolat	Soft Power	71
124	Babolat	VS Power+	71
124	Blackburne	Excalibur Ti 107	71
124	Blackburne	Excalibur Ti 97	71
124	Dunlop	C-Max 98	71
124	Gamma	Diamond Fiber C-4.0 Oversize	71
124	Gosen	Secret Carbon Lite	71
124	Head	I.S10	71
124	Head	I.S12	71
124	Wilson	Hyper Hammer 4.3 Stretch OS	71
124	Wilson	Hyper Hammer 5.2 OS	71
124	Wilson	Hyper Hammer 5.3 Stretch OS	71
124	Wilson	Hyper Pro Staff 5.0 Stretch MP	71
124	Wilson	Pro Staff 6.0 Original 95	71
124	Yonex	Super RQ Ti-600 Long	71
124	Yonex	Super RQ Ti-800 Long Pro	71
141	Babolat	Pure Power	72
141	Gamma	Diamond Fiber M-6.5	72
141	Gosen	Carbon 02	72
141	Head	I.S6 OS	72
141	Head	Ti. S1 OS	72
141	Head	Ti.S5 Comfort Zone XL	72
141	Prince	Triple Threat Bandit 95	72
141	Slazenger	Pro Carbon Ti	72
141	Wilson	Rollers 5.6 OS (Hyper Hammer)	72
150	Prince	Triple Threat Hornet OS	73
150	Prince	Triple Threat Stealth OS	73
150	Yonex	Muscle Power 5i OS	73
150	Yonex	Ultimum Ti-2000 Long 120	73
154	Cayman	Strike X	74
154	Head	Ti.S2	74
154	Prince	Triple Threat Grande (Tungsten) OS	74
154	Prince	Triple Threat Hornet MP	74
154	Prince	Triple Threat Stealth MP	74
154	Volkl	Quantum 1 Power Boost	74
154	Wilson	Hyper Hammer 3.3 SOS	74
154	Wilson	Hyper Hammer 4.3 Stretch MP	74
154	Wilson	Rollers 3.6	74
154	Wilson	Rollers 5.6 MP (Hyper Hammer)	74
154	Yonex	Ultimum Ti-2000 Long 110	74
165	Wilson	Hyper Hammer 5.3 Stretch MP	75
165	Wilson	Hyper Pro Staff 5.0 MP	75
167	Dunlop	Inferno 118	76
167	Head	Ti.S6	76
167	Prince	Triple Threat Ring	76
167	Wilson	Rollers 2.6 Overdrive	76
171	Head	I.S6 MP	78
171	Prince	Triple Threat Rip	78
171	Wilson	Hyper Hammer 3.3 OS	78
174	Gosen	Secret Carbon	79
174	Yonex	Muscle Power 7	79
176	Prince	Triple Threat Viper	81
		Average	67.07
		Standard Deviation	5.87
		High	81
		Low	48
		Median	68