Efficiency - Best and Worst 30 out of 176

Best 30 / Worst 30 for Efficiency - July 2001

The best require the least effort to generate the required ball speed, therefore with a maximum effort they can hit the ball fastest and should be most powerful on the serve, provided that the stringing and other factors affecting racquet bounce (coefficient of restitution) are the same for all racquets. The worst require the most effort. The rankings under the five benchmark criteria were weighted according to the ratio of the magnitude of the Work required for the best racquet (lowest Work) in that benchmark condition to the Work required for the best in the Second Benchmark Condition, which was highest of all, and therefore by weighting had more effect on the composite weighted rank. Weight Factors.

Rank out of 176	Efficiency - Top 30		1 BC forehand	2 BC 1st serve	3 BC volley	4 BC return	5 BC 2d serve	Weighted Ranks Sum
1	Slazenger	Pro Braided Extreme	3	2	12	12	2	5.10
2	Dunlop	Adrenalin Surge 108	1	1	43	44	1	6.68
3	Wilson	Hyper Pro Staff 5.0 Stretch OS	4	3	14	15	3	7.11
4	Prince	Precision Graphite Classic OS	1	6	1	1	6	8.85
5	Wilson	Hyper Pro Staff 5.0 Stretch MP	5	5	14	14	5	10.15
6	Dunlop	Adrenalin Rush 108	6	4	60	58	4	14.16
7	Cayman	Pro Heat II	8	8	24	24	8	16.43
8	Pro Kennex	Kinetic Pro 7g	7	10	4	4	10	16.65
9	Yonex	RD Ti-70 Long 98	9	11	19	20	11	20.45
10	Dunlop	Adrenalin Rush 98	13	7	66	66	7	21.34
11	Wilson	Hyper Pro Staff 5.0 MP	10	16	3	3	16	25.89
12	Weed	3/4 Weed XL	18	9	68	69	9	25.98
13	Dunlop	200 G 100	15	13	43	44	13	27.83
14	Gamma	Diamond Fiber F-9.0 MP	11	17	13	13	16	28.33
15	Yonex	Ultimum RD Ti-50 Long	17	12	65	65	12	29.48
16	Volkl	Quantum 10	20	15	60	61	14	33.71
17	Yonex	Ultimum Ti-1500 Long 105	22	14	68	68	14	34.16
18	Slazenger	Pro Braided	13	21	9	9	21	34.51
19	Cayman	Catalyst II	12	22	7	7	22	35.38
20	Head	Ti.Radical OS	19	18	50	50	18	36.81
21	Wilson	Pro Staff 6.6 Titanium MP	23	19	53	53	19	39.78
22	Wavex	AD2002	26	24	43	43	24	46.59
22	Prince	Triple Threat Hornet OS	27	25	28	28	25	46.59
24	Babolat	Pure Control	16	30	2	2	30	47.28
25	Yonex	Ultimum Ti-1700 Long 98	36	23	78	78	23	52.24
26	Prince	Triple Threat Warrior OS	31	28	39	39	28	53.28
27	Head	Classic MP	25	31	19	19	31	53.38
28	Volkl	C10 Pro	21	33	14	15	33	54.46
29	Cayman	Pro Talis II	28	32	36	36	32	57.64
30	Cayman	Pro Talis II Long	28	34	22	22	34	58.86

Rank out of 176	Efficiency - Bottom 30		1 BC forehand	2 BC 1st serve	3 BC volley	4 BC return	5 BC 2d serve	Weighted Ranks Sum
145	Yonex	Super RQ Ti-400 Long 105	141	150	111	113	150	266.74
146	Yonex	Super RQ Ti-800 Long	157	144	163	163	144	269.01
147	Prince	Triple Threat Bandit 95	138	157	58	58	157	269.48
148	Gosen	Carbon 15	154	146	152	152	146	269.64
149	Wilson	Hyper Hammer 6.3 Light MP	146	153	108	108	153	272.01
150	Cayman	Strike X	145	154	105	105	154	272.77
151	Wavex	Super Wave	135	162	39	39	162	273.42
152	Babolat	VS Power+	148	155	105	107	155	275.23
153	Wilson	Hyper Hammer 3.3 SOS	167	146	173	173	146	276.02
154	Wilson	Hyper Hammer 3.3 OS	164	148	168	168	148	277.34
155	Wavex	AD 2011	140	163	52	52	163	277.84
156	Head	I.S6 OS	165	148	172	172	148	278.10
157	Wilson	Hyper Hammer 5.9 MP	149	156	120	120	156	278.51
158	Cayman	Sidewinder Ti	160	151	157	157	151	279.08
159	Head	Ti.S5 Comfort Zone XL	159	152	149	149	152	279.26
160	Wilson	Hyper Hammer 5.9 OS	152	159	122	122	159	283.88
161	Cayman	Airlite	161	160	140	140	160	290.09
162	Yonex	Muscle Power 5i OS	169	158	166	166	158	292.69
163	Wilson	Rollers 3.6	163	164	134	134	164	295.64
164	Wilson	Hyper Hammer 6.3 Traditional MP	155	169	93	96	169	295.75
165	Cayman	Energizer Ti	172	161	158	159	161	296.99
166	Prince	Triple Threat Viper	162	166	125	125	166	297.12
167	Blackburne	Excalibur Ti 107	158	170	101	103	170	298.91
168	Yonex	Super RQ Ti-380 Muscle Long	167	165	149	149	165	299.98
169	Blackburne	DS-107	156	174	77	77	174	301.05
170	Wilson	Rollers 5.6 OS (Hyper Hammer)	166	168	139	139	168	302.75
171	Yonex	Ultimum Ti-2000 Long 110	174	167	171	171	167	307.44
172	Gosen	Tri Tube 400C	171	171	142	143	171	308.91
173	Gamma	Diamond Fiber C-2.0	170	173	138	138	172	310.48
174	Gosen	Carbon 02	173	172	148	148	172	311.54
175	Yonex	Ultimum Ti-2000 Long 120	175	175	158	159	175	317.58
176	Yonex	Super RQ Ti-800 Long Pro	176	176	161	161	176	319.56