OZ Lotto Bell Curve Statistics

This page displays a Bell Curve, also known as a Normal Distribution or Gaussian Distribution, for OZ Lotto. It shows how frequently the winning numbers add up to a certain sum.

The grey curve on the graph is the expected Bell Curve, which displays how often each sum should have appeared in all draws to date. For example, if there is a 1 in 100 probability that the winning numbers will add up to a certain sum in any given draw, that sum would be expected to appear 10 times over 1,000 draws. The expected Bell Curve is symmetrical and has one mode, which coincides with the mean and the median.

This is overlaid with the actual number of times each sum has appeared in all draws to date (the blue bars). This will match the expected Bell Curve more closely as more draws take place. The curve for draws with a limited history may look more erratic.

Ball Numbers:

The data is further laid out in the table below. It shows, for each of the sum totals, how many possible number combinations there are, the expected number of times that each sum should have appeared in all draws to date, and the count of how many times it has actually appeared. The final column shows if a particular sum is overdue. A sum is regarded as overdue if it hasn't appeared for twice the number of draws it is expected to. For example, if there is a 1 in 100 probability of a particular sum appearing, it will be labelled overdue if it hasn't appeared for 201 draws or more.

Some lotteries have undergone rule changes in the past that have affected how many main numbers are drawn. To remain consistent, data is taken only from draws that used the same matrix that is currently in use. This can mean that the statistics for some games are limited.

You can find the Bell Curve statistics for the Supplementary numbers below the table for the main numbers.

Number Sum Total	Possible Combinations	Expectation		Actual Over 301 Draws
Number Sum Total	Possible Combinations	Count	Frequency	Count	Last Drawn	Draws Ago
28	1	0.000	1 in 45,379,620	0	Never	Never
29	1	0.000	1 in 45,379,620	0	Never	Never
30	2	0.000	1 in 22,689,810	0	Never	Never
31	3	0.000	1 in 15,126,540	0	Never	Never
32	5	0.000	1 in 9,075,924	0	Never	Never
33	7	0.000	1 in 6,482,803	0	Never	Never
34	11	0.000	1 in 4,125,420	0	Never	Never
35	15	0.000	1 in 3,025,308	0	Never	Never
36	21	0.000	1 in 2,160,934	0	Never	Never
37	28	0.000	1 in 1,620,701	0	Never	Never
38	38	0.000	1 in 1,194,201	0	Never	Never
39	49	0.000	1 in 926,115	0	Never	Never
40	65	0.000	1 in 698,148	0	Never	Never
41	82	0.001	1 in 553,410	0	Never	Never
42	105	0.001	1 in 432,187	0	Never	Never
43	131	0.001	1 in 346,409	0	Never	Never
44	164	0.001	1 in 276,705	0	Never	Never
45	201	0.001	1 in 225,769	0	Never	Never
46	248	0.002	1 in 182,982	0	Never	Never
47	300	0.002	1 in 151,265	0	Never	Never
48	364	0.002	1 in 124,669	0	Never	Never
49	436	0.003	1 in 104,082	0	Never	Never
50	522	0.003	1 in 86,934	0	Never	Never
51	618	0.004	1 in 73,430	0	Never	Never
52	733	0.005	1 in 61,909	0	Never	Never
53	860	0.006	1 in 52,767	0	Never	Never
54	1,009	0.007	1 in 44,975	0	Never	Never
55	1,175	0.008	1 in 38,621	0	Never	Never
56	1,367	0.009	1 in 33,197	0	Never	Never
57	1,579	0.010	1 in 28,739	0	Never	Never
58	1,824	0.012	1 in 24,879	0	Never	Never
59	2,093	0.014	1 in 21,682	0	Never	Never
60	2,400	0.016	1 in 18,908	0	Never	Never
61	2,738	0.018	1 in 16,574	0	Never	Never
62	3,120	0.021	1 in 14,545	0	Never	Never
63	3,539	0.023	1 in 12,823	0	Never	Never
64	4,011	0.027	1 in 11,314	0	Never	Never
65	4,526	0.030	1 in 10,026	0	Never	Never
66	5,102	0.034	1 in 8,894	0	Never	Never
67	5,730	0.038	1 in 7,920	0	Never	Never
68	6,428	0.043	1 in 7,060	0	Never	Never
69	7,186	0.048	1 in 6,315	0	Never	Never
70	8,026	0.053	1 in 5,654	0	Never	Never
71	8,934	0.059	1 in 5,079	0	Never	Never
72	9,934	0.066	1 in 4,568	0	Never	Never
73	11,014	0.073	1 in 4,120	0	Never	Never
74	12,197	0.081	1 in 3,721	0	Never	Never
75	13,470	0.089	1 in 3,369	0	Never	Never
76	14,860	0.099	1 in 3,054	0	Never	Never
77	16,350	0.108	1 in 2,776	0	Never	Never
78	17,969	0.119	1 in 2,525	0	Never	Never
79	19,701	0.131	1 in 2,303	0	Never	Never
80	21,575	0.143	1 in 2,103	0	Never	Never
81	23,573	0.156	1 in 1,925	0	Never	Never
82	25,728	0.171	1 in 1,764	0	Never	Never
83	28,018	0.186	1 in 1,620	1	03/02/2015	202
84	30,478	0.202	1 in 1,489	0	Never	Never
85	33,086	0.219	1 in 1,372	0	Never	Never
86	35,877	0.238	1 in 1,265	0	Never	Never
87	38,827	0.258	1 in 1,169	0	Never	Never
88	41,975	0.278	1 in 1,081	0	Never	Never
89	45,292	0.300	1 in 1,002	0	Never	Never
90	48,819	0.324	1 in 930	0	Never	Never
91	52,527	0.348	1 in 864	1	01/12/2015	159
92	56,456	0.374	1 in 804	1	09/07/2013	284
93	60,575	0.402	1 in 749	0	Never	Never
94	64,928	0.431	1 in 699	2	19/05/2015	187
95	69,478	0.461	1 in 653	2	14/11/2017	57
96	74,271	0.493	1 in 611	1	26/08/2014	225
97	79,269	0.526	1 in 572	0	Never	Never
98	84,518	0.561	1 in 537	1	20/02/2018	43
99	89,976	0.597	1 in 504	0	Never	Never
100	95,693	0.635	1 in 474	0	Never	Never
101	101,621	0.674	1 in 447	0	Never	Never
102	107,811	0.715	1 in 421	0	Never	Never
103	114,214	0.758	1 in 397	0	Never	Never
104	120,880	0.802	1 in 375	1	09/06/2015	184
105	127,756	0.847	1 in 355	0	Never	Never
106	134,895	0.895	1 in 336	1	24/02/2015	199
107	142,238	0.943	1 in 319	1	03/07/2018	24
108	149,839	0.994	1 in 303	3	30/10/2018	7
109	157,637	1.046	1 in 288	1	11/08/2015	175
110	165,685	1.099	1 in 274	0	Never	Never
111	173,918	1.154	1 in 261	0	Never	Never
112	182,392	1.210	1 in 249	2	21/08/2018	17
113	191,035	1.267	1 in 238	1	28/08/2018	16
114	199,904	1.326	1 in 227	1	07/10/2014	219
115	208,926	1.386	1 in 217	2	23/05/2017	82
116	218,156	1.447	1 in 208	4	25/07/2017	73
117	227,517	1.509	1 in 199	1	28/11/2017	55
118	237,067	1.572	1 in 191	1	20/03/2018	39
119	246,723	1.636	1 in 184	1	03/01/2017	102
120	256,543	1.702	1 in 177	3	15/11/2016	109
121	266,443	1.767	1 in 170	1	27/10/2015	164
122	276,480	1.834	1 in 164	1	31/07/2018	20
123	286,566	1.901	1 in 158	1	24/11/2015	160
124	296,761	1.968	1 in 153	2	31/12/2013	259
125	306,971	2.036	1 in 148	2	01/05/2018	33
126	317,257	2.104	1 in 143	2	19/01/2016	152
127	327,524	2.172	1 in 139	1	08/11/2016	110
128	337,832	2.241	1 in 134	4	29/09/2015	168
129	348,083	2.309	1 in 130	3	12/12/2017	53
130	358,340	2.377	1 in 127	0	Never	Never	Overdue
131	368,500	2.444	1 in 123	2	27/05/2014	238
132	378,627	2.511	1 in 120	2	26/04/2016	138
133	388,618	2.578	1 in 117	2	11/09/2018	14
134	398,536	2.643	1 in 114	2	18/10/2016	113
135	408,276	2.708	1 in 111	2	27/11/2018	3
136	417,905	2.772	1 in 109	3	16/01/2018	48
137	427,313	2.834	1 in 106	4	26/07/2016	125
138	436,569	2.896	1 in 104	2	06/11/2018	6
139	445,564	2.955	1 in 102	3	16/10/2018	9
140	454,367	3.014	1 in 99.9	3	11/10/2016	114
141	462,867	3.070	1 in 98.0	1	31/01/2017	98
142	471,138	3.125	1 in 96.3	3	06/06/2017	80
143	479,066	3.178	1 in 94.7	6	27/03/2018	38
144	486,727	3.228	1 in 93.2	5	15/05/2018	31
145	494,009	3.277	1 in 91.9	2	31/03/2015	194	Overdue
146	500,989	3.323	1 in 90.6	6	18/07/2017	74
147	507,555	3.367	1 in 89.4	4	20/11/2018	4
148	513,788	3.408	1 in 88.3	5	10/07/2018	23
149	519,575	3.446	1 in 87.3	2	17/02/2015	200	Overdue
150	525,000	3.482	1 in 86.4	2	18/03/2014	248	Overdue
151	529,952	3.515	1 in 85.6	4	12/07/2016	127
152	534,517	3.545	1 in 84.9	6	04/04/2017	89
153	538,585	3.572	1 in 84.3	3	22/03/2016	143
154	542,246	3.597	1 in 83.7	1	10/04/2018	36
155	545,390	3.618	1 in 83.2	2	23/08/2016	121
156	548,110	3.636	1 in 82.8	2	28/10/2014	216	Overdue
157	550,299	3.650	1 in 82.5	4	24/07/2018	21
158	552,052	3.662	1 in 82.2	5	01/03/2016	146
159	553,264	3.670	1 in 82.0	4	26/06/2018	25
160	554,033	3.675	1 in 81.9	3	26/09/2017	64
161	554,256	3.676	1 in 81.9	5	22/05/2018	30
162	554,033	3.675	1 in 81.9	3	01/08/2017	72
163	553,264	3.670	1 in 82.0	4	05/09/2017	67
164	552,052	3.662	1 in 82.2	1	17/05/2016	135
165	550,299	3.650	1 in 82.5	4	03/10/2017	63
166	548,110	3.636	1 in 82.8	4	17/11/2015	161
167	545,390	3.618	1 in 83.2	7	24/04/2018	34
168	542,246	3.597	1 in 83.7	6	14/08/2018	18
169	538,585	3.572	1 in 84.3	3	14/02/2017	96
170	534,517	3.545	1 in 84.9	3	13/11/2018	5
171	529,952	3.515	1 in 85.6	4	07/08/2018	19
172	525,000	3.482	1 in 86.4	6	04/12/2018	2
173	519,575	3.446	1 in 87.3	4	22/08/2017	69
174	513,788	3.408	1 in 88.3	3	13/03/2018	40
175	507,555	3.367	1 in 89.4	5	17/07/2018	22
176	500,989	3.323	1 in 90.6	2	27/09/2016	116
177	494,009	3.277	1 in 91.9	4	16/05/2017	83
178	486,727	3.228	1 in 93.2	3	29/08/2017	68
179	479,066	3.178	1 in 94.7	1	08/03/2016	145
180	471,138	3.125	1 in 96.3	3	03/04/2018	37
181	462,867	3.070	1 in 98.0	3	11/04/2017	88
182	454,367	3.014	1 in 99.9	2	02/12/2014	211	Overdue
183	445,564	2.955	1 in 102	3	11/12/2018	1
184	436,569	2.896	1 in 104	5	02/10/2018	11
185	427,313	2.834	1 in 106	2	13/02/2018	44
186	417,905	2.772	1 in 109	1	30/04/2013	294	Overdue
187	408,276	2.708	1 in 111	1	12/09/2017	66
188	398,536	2.643	1 in 114	1	19/11/2013	265	Overdue
189	388,618	2.578	1 in 117	1	27/12/2016	103
190	378,627	2.511	1 in 120	3	22/12/2015	156
191	368,500	2.444	1 in 123	3	04/09/2018	15
192	358,340	2.377	1 in 127	0	Never	Never	Overdue
193	348,083	2.309	1 in 130	2	16/02/2016	148
194	337,832	2.241	1 in 134	1	03/11/2015	163
195	327,524	2.172	1 in 139	2	08/08/2017	71
196	317,257	2.104	1 in 143	7	24/10/2017	60
197	306,971	2.036	1 in 148	3	05/06/2018	28
198	296,761	1.968	1 in 153	5	06/02/2018	45
199	286,566	1.901	1 in 158	2	19/12/2017	52
200	276,480	1.834	1 in 164	1	06/09/2016	119
201	266,443	1.767	1 in 170	3	04/07/2017	76
202	256,543	1.702	1 in 177	1	29/11/2016	107
203	246,723	1.636	1 in 184	3	09/10/2018	10
204	237,067	1.572	1 in 191	1	02/07/2013	285
205	227,517	1.509	1 in 199	0	Never	Never
206	218,156	1.447	1 in 208	1	05/01/2016	154
207	208,926	1.386	1 in 217	1	16/09/2014	222
208	199,904	1.326	1 in 227	2	11/07/2017	75
209	191,035	1.267	1 in 238	1	22/11/2016	108
210	182,392	1.210	1 in 249	0	Never	Never
211	173,918	1.154	1 in 261	1	08/10/2013	271
212	165,685	1.099	1 in 274	0	Never	Never
213	157,637	1.046	1 in 288	0	Never	Never
214	149,839	0.994	1 in 303	0	Never	Never
215	142,238	0.943	1 in 319	1	18/09/2018	13
216	134,895	0.895	1 in 336	2	28/04/2015	190
217	127,756	0.847	1 in 355	0	Never	Never
218	120,880	0.802	1 in 375	0	Never	Never
219	114,214	0.758	1 in 397	3	28/03/2017	90
220	107,811	0.715	1 in 421	2	17/10/2017	61
221	101,621	0.674	1 in 447	0	Never	Never
222	95,693	0.635	1 in 474	1	13/12/2016	105
223	89,976	0.597	1 in 504	0	Never	Never
224	84,518	0.561	1 in 537	0	Never	Never
225	79,269	0.526	1 in 572	1	08/05/2018	32
226	74,271	0.493	1 in 611	0	Never	Never
227	69,478	0.461	1 in 653	1	18/04/2017	87
228	64,928	0.431	1 in 699	0	Never	Never
229	60,575	0.402	1 in 749	1	22/09/2015	169
230	56,456	0.374	1 in 804	0	Never	Never
231	52,527	0.348	1 in 864	1	12/04/2016	140
232	48,819	0.324	1 in 930	3	25/04/2017	86
233	45,292	0.300	1 in 1,002	0	Never	Never
234	41,975	0.278	1 in 1,081	0	Never	Never
235	38,827	0.258	1 in 1,169	0	Never	Never
236	35,877	0.238	1 in 1,265	0	Never	Never
237	33,086	0.219	1 in 1,372	1	13/10/2015	166
238	30,478	0.202	1 in 1,489	1	13/01/2015	205
239	28,018	0.186	1 in 1,620	1	10/02/2015	201
240	25,728	0.171	1 in 1,764	0	Never	Never
241	23,573	0.156	1 in 1,925	1	04/03/2014	250
242	21,575	0.143	1 in 2,103	0	Never	Never
243	19,701	0.131	1 in 2,303	0	Never	Never
244	17,969	0.119	1 in 2,525	0	Never	Never
245	16,350	0.108	1 in 2,776	0	Never	Never
246	14,860	0.099	1 in 3,054	0	Never	Never
247	13,470	0.089	1 in 3,369	0	Never	Never
248	12,197	0.081	1 in 3,721	0	Never	Never
249	11,014	0.073	1 in 4,120	0	Never	Never
250	9,934	0.066	1 in 4,568	0	Never	Never
251	8,934	0.059	1 in 5,079	0	Never	Never
252	8,026	0.053	1 in 5,654	0	Never	Never
253	7,186	0.048	1 in 6,315	0	Never	Never
254	6,428	0.043	1 in 7,060	0	Never	Never
255	5,730	0.038	1 in 7,920	0	Never	Never
256	5,102	0.034	1 in 8,894	0	Never	Never
257	4,526	0.030	1 in 10,026	0	Never	Never
258	4,011	0.027	1 in 11,314	0	Never	Never
259	3,539	0.023	1 in 12,823	0	Never	Never
260	3,120	0.021	1 in 14,545	0	Never	Never
261	2,738	0.018	1 in 16,574	0	Never	Never
262	2,400	0.016	1 in 18,908	0	Never	Never
263	2,093	0.014	1 in 21,682	0	Never	Never
264	1,824	0.012	1 in 24,879	0	Never	Never
265	1,579	0.010	1 in 28,739	0	Never	Never
266	1,367	0.009	1 in 33,197	0	Never	Never
267	1,175	0.008	1 in 38,621	0	Never	Never
268	1,009	0.007	1 in 44,975	0	Never	Never
269	860	0.006	1 in 52,767	0	Never	Never
270	733	0.005	1 in 61,909	0	Never	Never
271	618	0.004	1 in 73,430	0	Never	Never
272	522	0.003	1 in 86,934	0	Never	Never
273	436	0.003	1 in 104,082	0	Never	Never
274	364	0.002	1 in 124,669	0	Never	Never
275	300	0.002	1 in 151,265	0	Never	Never
276	248	0.002	1 in 182,982	0	Never	Never
277	201	0.001	1 in 225,769	0	Never	Never
278	164	0.001	1 in 276,705	0	Never	Never
279	131	0.001	1 in 346,409	0	Never	Never
280	105	0.001	1 in 432,187	0	Never	Never
281	82	0.001	1 in 553,410	0	Never	Never
282	65	0.000	1 in 698,148	0	Never	Never
283	49	0.000	1 in 926,115	0	Never	Never
284	38	0.000	1 in 1,194,201	0	Never	Never
285	28	0.000	1 in 1,620,701	0	Never	Never
286	21	0.000	1 in 2,160,934	0	Never	Never
287	15	0.000	1 in 3,025,308	0	Never	Never
288	11	0.000	1 in 4,125,420	0	Never	Never
289	7	0.000	1 in 6,482,803	0	Never	Never
290	5	0.000	1 in 9,075,924	0	Never	Never
291	3	0.000	1 in 15,126,540	0	Never	Never
292	2	0.000	1 in 22,689,810	0	Never	Never
293	1	0.000	1 in 45,379,620	0	Never	Never
294	1	0.000	1 in 45,379,620	0	Never	Never

Supplementary Numbers:

Number Sum Total	Possible Combinations	Expectation		Actual Over 1,293 Draws
Number Sum Total	Possible Combinations	Count	Frequency	Count	Last Drawn	Draws Ago
3	1	1.306	1 in 990	1	15/12/2015	157
4	1	1.306	1 in 990	0	Never	Never
5	2	2.612	1 in 495	3	17/11/2015	161
6	2	2.612	1 in 495	2	20/11/2018	4
7	3	3.918	1 in 330	3	12/12/2017	53
8	3	3.918	1 in 330	3	27/11/2018	3
9	4	5.224	1 in 248	7	05/06/2018	28
10	4	5.224	1 in 248	3	20/12/2016	104
11	5	6.530	1 in 198	6	28/11/2017	55
12	5	6.530	1 in 198	7	16/05/2017	83
13	6	7.836	1 in 165	3	11/08/2009	486	Overdue
14	6	7.836	1 in 165	6	05/10/2010	428	Overdue
15	7	9.142	1 in 141	8	26/05/2015	186
16	7	9.142	1 in 141	6	08/03/2016	145
17	8	10.448	1 in 124	13	22/11/2016	108
18	8	10.448	1 in 124	13	02/01/2018	50
19	9	11.755	1 in 110	6	25/02/2014	251	Overdue
20	9	11.755	1 in 110	7	28/10/2014	216
21	10	13.061	1 in 99.0	14	25/07/2017	73
22	10	13.061	1 in 99.0	20	08/05/2018	32
23	11	14.367	1 in 90.0	14	26/04/2016	138
24	11	14.367	1 in 90.0	12	07/02/2017	97
25	12	15.673	1 in 82.5	18	09/02/2016	149
26	12	15.673	1 in 82.5	7	10/10/2017	62
27	13	16.979	1 in 76.2	15	07/11/2017	58
28	13	16.979	1 in 76.2	22	14/08/2018	18
29	14	18.285	1 in 70.7	22	21/11/2017	56
30	14	18.285	1 in 70.7	13	31/05/2016	133
31	15	19.591	1 in 66.0	23	25/08/2015	173	Overdue
32	15	19.591	1 in 66.0	19	26/06/2018	25
33	16	20.897	1 in 61.9	29	17/02/2015	200	Overdue
34	16	20.897	1 in 61.9	19	01/05/2018	33
35	17	22.203	1 in 58.2	23	25/04/2017	86
36	17	22.203	1 in 58.2	26	23/10/2018	8
37	18	23.509	1 in 55.0	22	19/12/2017	52
38	18	23.509	1 in 55.0	27	11/09/2018	14
39	19	24.815	1 in 52.1	18	25/09/2018	12
40	19	24.815	1 in 52.1	26	12/06/2018	27
41	20	26.121	1 in 49.5	46	13/11/2018	5
42	20	26.121	1 in 49.5	32	10/04/2018	36
43	21	27.427	1 in 47.1	22	15/05/2018	31
44	21	27.427	1 in 47.1	25	28/08/2018	16
45	22	28.733	1 in 45.0	28	08/08/2017	71
46	22	28.733	1 in 45.0	29	18/09/2018	13
47	22	28.733	1 in 45.0	26	10/07/2018	23
48	21	27.427	1 in 47.1	29	04/09/2018	15
49	21	27.427	1 in 47.1	37	20/03/2018	39
50	20	26.121	1 in 49.5	13	15/04/2014	244	Overdue
51	20	26.121	1 in 49.5	22	23/05/2017	82
52	19	24.815	1 in 52.1	20	11/12/2018	1
53	19	24.815	1 in 52.1	23	09/10/2018	10
54	18	23.509	1 in 55.0	30	16/10/2018	9
55	18	23.509	1 in 55.0	18	01/03/2016	146	Overdue
56	17	22.203	1 in 58.2	24	26/12/2017	51
57	17	22.203	1 in 58.2	23	26/09/2017	64
58	16	20.897	1 in 61.9	21	03/04/2018	37
59	16	20.897	1 in 61.9	28	21/08/2018	17
60	15	19.591	1 in 66.0	14	24/05/2016	134	Overdue
61	15	19.591	1 in 66.0	17	04/12/2018	2
62	14	18.285	1 in 70.7	18	17/07/2018	22
63	14	18.285	1 in 70.7	18	22/03/2016	143	Overdue
64	13	16.979	1 in 76.2	18	24/04/2018	34
65	13	16.979	1 in 76.2	15	22/05/2018	30
66	12	15.673	1 in 82.5	22	06/02/2018	45
67	12	15.673	1 in 82.5	22	29/03/2016	142
68	11	14.367	1 in 90.0	12	13/02/2018	44
69	11	14.367	1 in 90.0	10	30/10/2018	7
70	10	13.061	1 in 99.0	11	04/04/2017	89
71	10	13.061	1 in 99.0	7	20/01/2015	204	Overdue
72	9	11.755	1 in 110	11	27/04/2010	451	Overdue
73	9	11.755	1 in 110	13	27/10/2015	164
74	8	10.448	1 in 124	4	02/05/2017	85
75	8	10.448	1 in 124	15	19/09/2017	65
76	7	9.142	1 in 141	10	03/07/2018	24
77	7	9.142	1 in 141	6	01/09/2009	483	Overdue
78	6	7.836	1 in 165	9	27/02/2018	42
79	6	7.836	1 in 165	12	03/10/2017	63
80	5	6.530	1 in 198	10	18/07/2017	74
81	5	6.530	1 in 198	8	06/09/2016	119
82	4	5.224	1 in 248	2	12/08/1997	1,112	Overdue
83	4	5.224	1 in 248	3	21/06/2011	391
84	3	3.918	1 in 330	5	01/03/2011	407
85	3	3.918	1 in 330	6	07/07/2015	180
86	2	2.612	1 in 495	4	16/09/2008	533
87	2	2.612	1 in 495	6	31/12/2013	259
88	1	1.306	1 in 990	2	29/03/2011	403
89	1	1.306	1 in 990	1	10/10/2000	947

Page Last Updated: Tuesday, 11 December 2018 12:00 AM