If your class has had its championships but your attendance is not shown then please email me the figure and I will update the database. You can sort the data by each of the years shown, by alphabetical order or by number of people at an event.

The figure is the number of boats to start at least one race at a championship. For combined championships (such as Worlds and nationals), only the UK boats are counted. For open national championships all competitors are included.

Pos	Class Name sort	2001 Sort by	2002 Sort by	2003 Sort by	2004 Sort by	2005 Sort by	2006 Sort by	2007 Sort by	2008 Sort by	2009 Sort by	2010 Sort by	2011 Sort by	11/10 comparison	01-2011 average
1	Optimist	270	294	302	294	335	361	379	447	352	490	448	-42	361
2	Topper	188	218	229	246	278	289	289	307	345	348	324	-24	278
3	RS200	172	160	202	182	202	260	252	266	256	160	316	+78	110
4	XOD	222	216	207	237	237	219	213	240	237	264	435	+57	82
5	J109						208	136	256	232	216	200	-2	26
6	Squib	112	170	162	118	164	178	194	162	216	138	122	-8	78
7	SB20		42	96	99	156	174	171	111	204	123	108	-5	42
8	Cadet	238	244	258	224	212	236	324	200	184	164	160	-2	111
9	Mirror	116	144	166	138	182	224	142	148	160	74	154	+40	74
10	2000	84	104	118	68	86	68	98	98	158	148	88	-30	50
11	National 12	108	94	118	118	90	90	72	78	154	152	106	-23	53
12	RS Feva			100	48	132	170	130	160	144	230	204	-13	73
13	RS400	212	172	124	144	114	120	118	78	132	120	168	+24	68
14	Salcombe Yawl		110	102	94	106	116	128	140	130	120	102	-9	57
15	Sigma 38	90	225		171	72	72	81	90	126	117	153	+4	13
16	Fireball	92	136	144	148	168	110	94	176	126	94	112	+9	63
17	420	108	144	130	172	192	98	154	120	126	114	96	-9	66
18	J80	50	70	75	45	125	95	90		125	75	125	+10	17
19	Firefly	80	142	116	104	106	214	110	136	122	132	106	-13	62
20	Dart 18	288	148	140	78	146	142	122	110	114	124	156	+16	71
21	Merlin Rocket	144	108	126	130	164	124	158	152	114	130	118	-6	66
22	Miracle	70	54	108	88	78	62	62	96	114	86	68	-9	40
23	Lark	70	84	102	96	126	120	116	90	110	94	86	-4	49
24	Enterprise	170	122	112	134	144	214	112	106	108	102	116	+7	65
25	Albacore	140	56	60	40	148	66	66	80	106	90	68	-11	41
26	Sigma 33									105	49	119	+10	13
27	GP14	146	86	284	172	128	124	94	180	104	120	104	-8	70
28	Scorpion	124	124	132	132	126	126	112	104	102	162	126	-18	62
29	J/24	215	200	215	200	205	125	135	150	100	105	80	-5	31
30	Flying Fifteen	86	144	46	92	110	124	72	104	98	126	184	+29	53
31	29er	96	86	100	80	62	162	112	114	96	82	114	+16	50
32	J105	80	80		80	50	130	100		90	90	60	-3	8
33	Laser Radial	84	110	116	130	197	121	142	155	90	123	145	+22	128
34	Osprey	78	52	102	68	56	70	56	100	86	66	66	+0	36
35	Dragon	126	141	78	105	108	108	72	69	81	96	129	+11	33
36	Farr 45			63				72		81	81		n/a	8
37	Beneteau 40.7									81	81		n/a	9
38	National 18	84	69	96	90	93	57	99	72	78	42	153	+37	28
39	RS800	134	124	100	140	102	106	100	82	74	78	118	+20	52
40	International 14	68	86	124	90	62	60	106	64	72	66	62	-2	39
41	505	68	48	54	54	50	96	60	80	72	92	80	-6	34
42	Solo	63	76	72	63	79	79	90	82	70	78	95	+17	77
43	Sharpie				56	54	30	78	62	66	48	44	-2	27
44	707	255	230	185	145	120	95	115	65	65	85	70	-3	26
45	Sonata	136	76	96	108	76	108	56	68	64	64	64	+0	20
46	Graduate	42		28	24	26	14	22	40	64	38	30	-4	16
47	RS Elite					48	57	63	51	63	99	69	-10	21
48	One Metre	66	71	73	68	44	57	56	57	62	70	69	-1	63
49	Phantom	51	53	65	73	72	78	70	45	62	81	79	-2	66
50	Tasar	54	50	48	70	64	88	92	74	60	60	42	-9	31
51	Swallow	57	60	45		45	69	51	39	60	27	30	+1	16
52	Sprint 15	53	66	86	56	34	63	54	61	60	61	58	-3	59
53	Sandhopper		36	40	32	46	28	46	54	58	64	54	-5	22
54	Comet Trio	30	26	34	48	38	48	52	26	56	30	44	+7	19
55	Yeoman/Kinsman				70		40			56	20		n/a	23
56	Laser Pico						44	66	44	54	38		n/a	49
57	Etchells	111	75	69	75	93	108		54	54	24	24	+0	22
58	B14	68	46	86	60	46	40	52	54	54	26	56	+15	26
59	Contender	52	50	41	50	56	50	50	40	53	34	95	+61	51
60	Formula 18	56	90	72	66	86	76	66	46	52	74	64	-5	34
61	Hunter Formula One			60	52	64	72	40	68	52	24	48	+6	13
62	Ajax	42	57	42	72	48	72	51	78	51	69	51	-6	19
63	Musto Skiff	11	16	21	29	28	47	43	65	50	74	41	-33	38
64	Wayfarer	120	78	78	92	54	54	50	84	48	182	56	-63	40
65	Laser 4000	140	102	102	82	114	82	82	56	48	32	30	-1	39
66	49er	78	80	52	62	72	66	52	66	48	36	36	+0	29
67	Spitfire		22	36	42	50	56	48	56	46	54	30	-12	22
68	Thames A Rater	45	39	39	33	36	42	48	45	45	48	36	-4	13
69	Finn	15	35	40	32	41	59	41	30	42	31	42	+11	37
70	Hurricane 5.9 SX	70	100	72	58	100	44	46	56	40	56	54	-1	31
71	RS Tera								28	39	72	86	+14	56
72	RC Laser	25	26	31	41	19	44	49	45	39	29	27	-2	34
73	Sprint 15 Sport	43	46	37	43	39	43	29	40	39	24	35	+11	38
74	K6		36	46	42	40	38	46		38	38	46	+4	20
75	RS Vareo		18	21	23	24	12	47	35	38	20	29	+9	26
76	Wanderer	58	48	42	38	36	24	38	30	38	38	30	-4	19
77	International Moth	20	19	18	32	24	11	20	29	37	43	56	+13	28
78	RS500							60	76	36	28	64	+18	26
79	Kestrel	54	48	42	38	40	46	62	52	36	52	38	-7	23
80	Supernova	33	47	58	53	38	30	31	30	36	38	34	-4	38
81	Beneteau First 31.7									36	42		n/a	6
82	Yachting World Dayboat	40	56	46	30	40	44	48	70	36	40	54	+7	22
83	Laser	80	92	85	108	104	86	88	88	35	47	81	+34	81
84	OK	35	36	40	75	27	22	43	33	35	32	42	+10	38
85	RS700	18	33	48	34	28	50	51	44	34	34	38	+4	37
86	Snipe	62		32	26	38	30	34		34	28	30	+1	17
87	Cherub	32	38	18	34	38	38	54	46	34	36	36	+0	18
88	Rooster 8.1							19	17	34	19		n/a	22
89	Loch Long One Design			80			42		68	34		52	n/a	27
90	Sonar						45		42	33	24	51	+9	13
91	Laser 4.7	27	37	40	61	59	35	51	55	33	37	71	+34	46
92	RS300	18	15	21	21	29	25	31	27	33	26	34	+8	25
93	Norfolk Punt	48	44	48	42	48	40	36	36	32	32	38	+3	20
94	Hornet	100	94	72	68	42	60	44	64	32	36	38	+1	29
95	Laser 2	184	74	68	44	30	32	24	14	32			n/a	27
96	3000	32	30	24	38	30	22	32	26	32	24	18	-3	14
97	Folkboat	64	76	108	148	36		36		32	76	160	+21	20
98	Foxer	21		19	14	18	14		21	31	22	30	+8	21
99	Javelin	26	34	28	34	30	28	28		30	18	22	+2	13
100	1720		100	130	140	130	95			30	40		n/a	19
101	Shearwater	44	40	42	42	44	44	34	34	30	32	34	+1	19
102	Tornado		32	42	68	64	52	44	18	30	22	26	+2	19
103	Dart 16	28	48	36	42		22	22	28	28	24	24	+0	15
104	Blaze	15	13	18	43	53	48	44	25	28	54	39	-15	34
105	Buzz	46	58	30	44	38	32	26	26	28	20	12	-4	16
106	Streaker	31	26	24	45	54	60	53	58	27	46	46	+0	42
107	ISO	48	46	56	68	40	54	34	32	26	16	10	-3	19
108	Redwing	32	32	30	26	38		28	24	26	26	26	+0	14
109	Laser Stratos	30	10	22	30	26				26	16	18	+1	11
110	Devon Yawl	86	44	38	58	32	40	28	32	26	56	40	-8	21
111	Tideway	30	42	28	26	32	20	58	24	26	30	22	-4	15
112	British Moth	25	32	31	32	31	29	40	32	24	24	31	+7	30
113	Comet	40	49	40	46	31	43	44	27	24	27	39	+12	37
114	SigneT	30	32		28	30	16	30	18	24	20	30	+5	12
115	International Canoe	25	26	28	33	21	35	32	22	23	34	24	-10	27
116	RS600	62	47	41	35	21	25	33	18	22	27	23	-4	32
117	Illusion					21	26	28	24	20	26	29	+3	24
118	Laser Vago						46	36	14	20	30	24	-3	14
119	Comet Versa									20	8		n/a	7
120	Europe	23	15	14	12	21	28	23	20	19	14	18	+4	18
121	18ft Skiff	42	54	33	27	42	42	27	30	18		24	n/a	11
122	Vortex	31	29	32	21	30	23	19	16	17	27	18	-9	23
123	Challenger	26	30	22	23	24	19	20	28	16	21	20	-1	22
124	Lightning 368	18	24	23	20	27	24	19	21	16	25	17	-8	21
125	Marblehead	34	28	24	21	22	21	22		15	17	24	+7	22
126	Solution							17	12	15	9	12	+3	13
127	Tempest	44	24	32	28	28	28		22	14	18	20	+1	12
128	Byte	20	29	20	14	18	14	15	18	14	11	13	+2	16
129	Flying Dutchman	22	16	26	16	20	14	12	16	14	16	18	+1	8
130	Shadow					8		14	20	13	5	12	+7	12
131	Laser 5000	40	32	32	32	18	6	10	16	12	12	16	+2	10
132	RS600FF								15	11			n/a	13
133	Heron	20	22	26	23	24	19	17	14	11	14	10	-4	18
134	Laser EPS							10	10	10	10	6	-4	9
135	Comet Duo	24			16					10			n/a	8
136	Formula 16					12	24			10			n/a	7
137	Unicorn	9		11	5	9	9	11	10	10	10	7	-3	9
138	Catapult	11	9	10	10	12	9	24	10	4	13	8	-5	10
139	Hobie 16			36	40	36		30			38		n/a	18
145	Bosun	36	42										n/a	19
146	Gull	30											n/a	15
147	405	46	34	32	32	22		22	16				n/a	14
148	470		14	6	28	28	38		36				n/a	12
153	Leader	12		16	12	12	12					14	n/a	6
154	A Class Catamaran								6		12	7	-5	8
158	Nacra			16									n/a	8
159	X-332	120	174	156	84	90	48						n/a	18
161	Formula 20	22		10									n/a	8
167	Soling	36	33	45	42	42	27				27		n/a	12
169	Farr 30		77	98	56	35							n/a	9
182	Boss	28	20	12	8		4						n/a	7
185	J92	100		100			100	90			80	70	-1	9
194	Pacer	18			14	16	18						n/a	8
197	Prima 38	120	150	80	100	130	90						n/a	11
198	Pandora	48	45	45	42								n/a	15
204	Swordfish		16	10	20								n/a	7
205	Ker 11.3	48		40	40								n/a	5
207	Quarter Tonner										175	155	-4	33
209	Hobie Tiger					4							n/a	2
210	Wineglass	12			24		32				18		n/a	10
213	2.4m	13		23	20	21	21	15	13			19	n/a	18
215	Contessa 32	132	126	138	120	102	96	96	90		66		n/a	17
216	Impala 28	42	48	102	78	48						42	n/a	10
218	Melges 24	125	105	125	120	110	45	65			40	20	-4	16
224	Splash	39	22	41	57	58	14	16			6	10	+4	29
225	HOD35			56	49								n/a	7
247	Scow										37	28	-9	32
249	Hobie Dragoon					20		14					n/a	8
253	St Mawes One Design	18	30	32									n/a	13
262	X-35							56					n/a	8
263	Sunbeam										26	26	+0	13
266	59er				10								n/a	5
279	Access											34	n/a	34
280	Martin 16				20	12							n/a	8
316	D-One											11	n/a	11
318	RS100										43	47	+4	45
322	Topper 4.2										45	43	-2	44
325	K1											21	n/a	21
335	Seascape 18											18	n/a	6
390	Bull 7000	6											n/a	6
394	IRC											54	n/a	54
400	MOCRA	18	24	15	12	15	8	18			7	14	+7	14
Totals (number of boats)		4696	4699	5055	5043	5158	5207	5121	5023	4936	5252	5539