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.

Main 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 310 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	0.004	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	0.011	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	0.019	1 in 16,574	0	Never	Never
62	3,120	0.021	1 in 14,545	0	Never	Never
63	3,539	0.024	1 in 12,823	0	Never	Never
64	4,011	0.027	1 in 11,314	0	Never	Never
65	4,526	0.031	1 in 10,026	0	Never	Never
66	5,102	0.035	1 in 8,894	0	Never	Never
67	5,730	0.039	1 in 7,920	0	Never	Never
68	6,428	0.044	1 in 7,060	0	Never	Never
69	7,186	0.049	1 in 6,315	0	Never	Never
70	8,026	0.055	1 in 5,654	0	Never	Never
71	8,934	0.061	1 in 5,079	0	Never	Never
72	9,934	0.068	1 in 4,568	0	Never	Never
73	11,014	0.075	1 in 4,120	0	Never	Never
74	12,197	0.083	1 in 3,721	0	Never	Never
75	13,470	0.092	1 in 3,369	0	Never	Never
76	14,860	0.102	1 in 3,054	0	Never	Never
77	16,350	0.112	1 in 2,776	0	Never	Never
78	17,969	0.123	1 in 2,525	0	Never	Never
79	19,701	0.135	1 in 2,303	0	Never	Never
80	21,575	0.147	1 in 2,103	0	Never	Never
81	23,573	0.161	1 in 1,925	0	Never	Never
82	25,728	0.176	1 in 1,764	0	Never	Never
83	28,018	0.191	1 in 1,620	1	2/3/2015	211
84	30,478	0.208	1 in 1,489	0	Never	Never
85	33,086	0.226	1 in 1,372	0	Never	Never
86	35,877	0.245	1 in 1,265	0	Never	Never
87	38,827	0.265	1 in 1,169	0	Never	Never
88	41,975	0.287	1 in 1,081	0	Never	Never
89	45,292	0.309	1 in 1,002	0	Never	Never
90	48,819	0.333	1 in 930	0	Never	Never
91	52,527	0.359	1 in 864	1	12/1/2015	168
92	56,456	0.386	1 in 804	1	7/9/2013	293
93	60,575	0.414	1 in 749	0	Never	Never
94	64,928	0.444	1 in 699	2	5/19/2015	196
95	69,478	0.475	1 in 653	2	11/14/2017	66
96	74,271	0.507	1 in 611	1	8/26/2014	234
97	79,269	0.542	1 in 572	0	Never	Never
98	84,518	0.577	1 in 537	1	2/20/2018	52
99	89,976	0.615	1 in 504	0	Never	Never
100	95,693	0.654	1 in 474	0	Never	Never
101	101,621	0.694	1 in 447	0	Never	Never
102	107,811	0.736	1 in 421	0	Never	Never
103	114,214	0.780	1 in 397	0	Never	Never
104	120,880	0.826	1 in 375	1	6/9/2015	193
105	127,756	0.873	1 in 355	0	Never	Never
106	134,895	0.922	1 in 336	1	2/24/2015	208
107	142,238	0.972	1 in 319	1	7/3/2018	33
108	149,839	1.024	1 in 303	3	10/30/2018	16
109	157,637	1.077	1 in 288	1	8/11/2015	184
110	165,685	1.132	1 in 274	0	Never	Never
111	173,918	1.188	1 in 261	1	2/12/2019	1
112	182,392	1.246	1 in 249	2	8/21/2018	26
113	191,035	1.305	1 in 238	1	8/28/2018	25
114	199,904	1.366	1 in 227	1	10/7/2014	228
115	208,926	1.427	1 in 217	2	5/23/2017	91
116	218,156	1.490	1 in 208	5	2/5/2019	2
117	227,517	1.554	1 in 199	1	11/28/2017	64
118	237,067	1.619	1 in 191	1	3/20/2018	48
119	246,723	1.685	1 in 184	1	1/3/2017	111
120	256,543	1.753	1 in 177	3	11/15/2016	118
121	266,443	1.820	1 in 170	1	10/27/2015	173
122	276,480	1.889	1 in 164	1	7/31/2018	29
123	286,566	1.958	1 in 158	1	11/24/2015	169
124	296,761	2.027	1 in 153	2	12/31/2013	268
125	306,971	2.097	1 in 148	2	5/1/2018	42
126	317,257	2.167	1 in 143	2	1/19/2016	161
127	327,524	2.237	1 in 139	1	11/8/2016	119
128	337,832	2.308	1 in 134	4	9/29/2015	177
129	348,083	2.378	1 in 130	3	12/12/2017	62
130	358,340	2.448	1 in 127	0	Never	Never	Overdue
131	368,500	2.517	1 in 123	2	5/27/2014	247	Overdue
132	378,627	2.587	1 in 120	2	4/26/2016	147
133	388,618	2.655	1 in 117	2	9/11/2018	23
134	398,536	2.723	1 in 114	2	10/18/2016	122
135	408,276	2.789	1 in 111	2	11/27/2018	12
136	417,905	2.855	1 in 109	3	1/16/2018	57
137	427,313	2.919	1 in 106	4	7/26/2016	134
138	436,569	2.982	1 in 104	2	11/6/2018	15
139	445,564	3.044	1 in 102	3	10/16/2018	18
140	454,367	3.104	1 in 99.9	3	10/11/2016	123
141	462,867	3.162	1 in 98.0	1	1/31/2017	107
142	471,138	3.218	1 in 96.3	3	6/6/2017	89
143	479,066	3.273	1 in 94.7	6	3/27/2018	47
144	486,727	3.325	1 in 93.2	5	5/15/2018	40
145	494,009	3.375	1 in 91.9	2	3/31/2015	203	Overdue
146	500,989	3.422	1 in 90.6	6	7/18/2017	83
147	507,555	3.467	1 in 89.4	4	11/20/2018	13
148	513,788	3.510	1 in 88.3	5	7/10/2018	32
149	519,575	3.549	1 in 87.3	3	12/18/2018	9
150	525,000	3.586	1 in 86.4	2	3/18/2014	257	Overdue
151	529,952	3.620	1 in 85.6	4	7/12/2016	136
152	534,517	3.651	1 in 84.9	6	4/4/2017	98
153	538,585	3.679	1 in 84.3	4	12/25/2018	8
154	542,246	3.704	1 in 83.7	1	4/10/2018	45
155	545,390	3.726	1 in 83.2	2	8/23/2016	130
156	548,110	3.744	1 in 82.8	2	10/28/2014	225	Overdue
157	550,299	3.759	1 in 82.5	4	7/24/2018	30
158	552,052	3.771	1 in 82.2	5	3/1/2016	155
159	553,264	3.779	1 in 82.0	4	6/26/2018	34
160	554,033	3.785	1 in 81.9	3	9/26/2017	73
161	554,256	3.786	1 in 81.9	5	5/22/2018	39
162	554,033	3.785	1 in 81.9	3	8/1/2017	81
163	553,264	3.779	1 in 82.0	4	9/5/2017	76
164	552,052	3.771	1 in 82.2	1	5/17/2016	144
165	550,299	3.759	1 in 82.5	5	1/22/2019	4
166	548,110	3.744	1 in 82.8	4	11/17/2015	170	Overdue
167	545,390	3.726	1 in 83.2	7	4/24/2018	43
168	542,246	3.704	1 in 83.7	6	8/14/2018	27
169	538,585	3.679	1 in 84.3	3	2/14/2017	105
170	534,517	3.651	1 in 84.9	3	11/13/2018	14
171	529,952	3.620	1 in 85.6	5	1/29/2019	3
172	525,000	3.586	1 in 86.4	6	12/4/2018	11
173	519,575	3.549	1 in 87.3	4	8/22/2017	78
174	513,788	3.510	1 in 88.3	3	3/13/2018	49
175	507,555	3.467	1 in 89.4	5	7/17/2018	31
176	500,989	3.422	1 in 90.6	2	9/27/2016	125
177	494,009	3.375	1 in 91.9	4	5/16/2017	92
178	486,727	3.325	1 in 93.2	3	8/29/2017	77
179	479,066	3.273	1 in 94.7	1	3/8/2016	154
180	471,138	3.218	1 in 96.3	3	4/3/2018	46
181	462,867	3.162	1 in 98.0	3	4/11/2017	97
182	454,367	3.104	1 in 99.9	2	12/2/2014	220	Overdue
183	445,564	3.044	1 in 102	4	1/8/2019	6
184	436,569	2.982	1 in 104	5	10/2/2018	20
185	427,313	2.919	1 in 106	2	2/13/2018	53
186	417,905	2.855	1 in 109	2	1/1/2019	7
187	408,276	2.789	1 in 111	1	9/12/2017	75
188	398,536	2.723	1 in 114	1	11/19/2013	274	Overdue
189	388,618	2.655	1 in 117	1	12/27/2016	112
190	378,627	2.587	1 in 120	3	12/22/2015	165
191	368,500	2.517	1 in 123	3	9/4/2018	24
192	358,340	2.448	1 in 127	0	Never	Never	Overdue
193	348,083	2.378	1 in 130	2	2/16/2016	157
194	337,832	2.308	1 in 134	1	11/3/2015	172
195	327,524	2.237	1 in 139	2	8/8/2017	80
196	317,257	2.167	1 in 143	7	10/24/2017	69
197	306,971	2.097	1 in 148	3	6/5/2018	37
198	296,761	2.027	1 in 153	5	2/6/2018	54
199	286,566	1.958	1 in 158	3	1/15/2019	5
200	276,480	1.889	1 in 164	1	9/6/2016	128
201	266,443	1.820	1 in 170	3	7/4/2017	85
202	256,543	1.753	1 in 177	1	11/29/2016	116
203	246,723	1.685	1 in 184	3	10/9/2018	19
204	237,067	1.619	1 in 191	1	7/2/2013	294
205	227,517	1.554	1 in 199	0	Never	Never
206	218,156	1.490	1 in 208	1	1/5/2016	163
207	208,926	1.427	1 in 217	1	9/16/2014	231
208	199,904	1.366	1 in 227	2	7/11/2017	84
209	191,035	1.305	1 in 238	1	11/22/2016	117
210	182,392	1.246	1 in 249	0	Never	Never
211	173,918	1.188	1 in 261	1	10/8/2013	280
212	165,685	1.132	1 in 274	0	Never	Never
213	157,637	1.077	1 in 288	0	Never	Never
214	149,839	1.024	1 in 303	0	Never	Never
215	142,238	0.972	1 in 319	1	9/18/2018	22
216	134,895	0.922	1 in 336	2	4/28/2015	199
217	127,756	0.873	1 in 355	0	Never	Never
218	120,880	0.826	1 in 375	0	Never	Never
219	114,214	0.780	1 in 397	3	3/28/2017	99
220	107,811	0.736	1 in 421	2	10/17/2017	70
221	101,621	0.694	1 in 447	0	Never	Never
222	95,693	0.654	1 in 474	1	12/13/2016	114
223	89,976	0.615	1 in 504	0	Never	Never
224	84,518	0.577	1 in 537	0	Never	Never
225	79,269	0.542	1 in 572	1	5/8/2018	41
226	74,271	0.507	1 in 611	0	Never	Never
227	69,478	0.475	1 in 653	1	4/18/2017	96
228	64,928	0.444	1 in 699	0	Never	Never
229	60,575	0.414	1 in 749	1	9/22/2015	178
230	56,456	0.386	1 in 804	0	Never	Never
231	52,527	0.359	1 in 864	1	4/12/2016	149
232	48,819	0.333	1 in 930	3	4/25/2017	95
233	45,292	0.309	1 in 1,002	0	Never	Never
234	41,975	0.287	1 in 1,081	0	Never	Never
235	38,827	0.265	1 in 1,169	0	Never	Never
236	35,877	0.245	1 in 1,265	0	Never	Never
237	33,086	0.226	1 in 1,372	1	10/13/2015	175
238	30,478	0.208	1 in 1,489	1	1/13/2015	214
239	28,018	0.191	1 in 1,620	1	2/10/2015	210
240	25,728	0.176	1 in 1,764	0	Never	Never
241	23,573	0.161	1 in 1,925	1	3/4/2014	259
242	21,575	0.147	1 in 2,103	0	Never	Never
243	19,701	0.135	1 in 2,303	0	Never	Never
244	17,969	0.123	1 in 2,525	0	Never	Never
245	16,350	0.112	1 in 2,776	0	Never	Never
246	14,860	0.102	1 in 3,054	0	Never	Never
247	13,470	0.092	1 in 3,369	0	Never	Never
248	12,197	0.083	1 in 3,721	0	Never	Never
249	11,014	0.075	1 in 4,120	0	Never	Never
250	9,934	0.068	1 in 4,568	0	Never	Never
251	8,934	0.061	1 in 5,079	0	Never	Never
252	8,026	0.055	1 in 5,654	0	Never	Never
253	7,186	0.049	1 in 6,315	0	Never	Never
254	6,428	0.044	1 in 7,060	0	Never	Never
255	5,730	0.039	1 in 7,920	0	Never	Never
256	5,102	0.035	1 in 8,894	0	Never	Never
257	4,526	0.031	1 in 10,026	0	Never	Never
258	4,011	0.027	1 in 11,314	0	Never	Never
259	3,539	0.024	1 in 12,823	0	Never	Never
260	3,120	0.021	1 in 14,545	0	Never	Never
261	2,738	0.019	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	0.011	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	0.004	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 1,302 Draws
Number Sum Total	Possible Combinations	Count	Frequency	Count	Last Drawn	Draws Ago
3	1	1.315	1 in 990	1	12/15/2015	166
4	1	1.315	1 in 990	0	Never	Never
5	2	2.630	1 in 495	3	11/17/2015	170
6	2	2.630	1 in 495	2	11/20/2018	13
7	3	3.945	1 in 330	3	12/12/2017	62
8	3	3.945	1 in 330	3	11/27/2018	12
9	4	5.261	1 in 248	7	6/5/2018	37
10	4	5.261	1 in 248	3	12/20/2016	113
11	5	6.576	1 in 198	6	11/28/2017	64
12	5	6.576	1 in 198	7	5/16/2017	92
13	6	7.891	1 in 165	3	8/11/2009	495	Overdue
14	6	7.891	1 in 165	6	10/5/2010	437	Overdue
15	7	9.206	1 in 141	8	5/26/2015	195
16	7	9.206	1 in 141	6	3/8/2016	154
17	8	10.521	1 in 124	13	11/22/2016	117
18	8	10.521	1 in 124	13	1/2/2018	59
19	9	11.836	1 in 110	6	2/25/2014	260	Overdue
20	9	11.836	1 in 110	7	10/28/2014	225	Overdue
21	10	13.152	1 in 99.0	14	7/25/2017	82
22	10	13.152	1 in 99.0	20	5/8/2018	41
23	11	14.467	1 in 90.0	14	4/26/2016	147
24	11	14.467	1 in 90.0	13	1/1/2019	7
25	12	15.782	1 in 82.5	18	2/9/2016	158
26	12	15.782	1 in 82.5	7	10/10/2017	71
27	13	17.097	1 in 76.2	15	11/7/2017	67
28	13	17.097	1 in 76.2	22	8/14/2018	27
29	14	18.412	1 in 70.7	22	11/21/2017	65
30	14	18.412	1 in 70.7	13	5/31/2016	142	Overdue
31	15	19.727	1 in 66.0	23	8/25/2015	182	Overdue
32	15	19.727	1 in 66.0	19	6/26/2018	34
33	16	21.042	1 in 61.9	29	2/17/2015	209	Overdue
34	16	21.042	1 in 61.9	19	5/1/2018	42
35	17	22.358	1 in 58.2	24	2/12/2019	1
36	17	22.358	1 in 58.2	26	10/23/2018	17
37	18	23.673	1 in 55.0	22	12/19/2017	61
38	18	23.673	1 in 55.0	27	9/11/2018	23
39	19	24.988	1 in 52.1	18	9/25/2018	21
40	19	24.988	1 in 52.1	26	6/12/2018	36
41	20	26.303	1 in 49.5	46	11/13/2018	14
42	20	26.303	1 in 49.5	32	4/10/2018	45
43	21	27.618	1 in 47.1	23	12/25/2018	8
44	21	27.618	1 in 47.1	25	8/28/2018	25
45	22	28.933	1 in 45.0	29	2/5/2019	2
46	22	28.933	1 in 45.0	29	9/18/2018	22
47	22	28.933	1 in 45.0	26	7/10/2018	32
48	21	27.618	1 in 47.1	29	9/4/2018	24
49	21	27.618	1 in 47.1	37	3/20/2018	48
50	20	26.303	1 in 49.5	13	4/15/2014	253	Overdue
51	20	26.303	1 in 49.5	22	5/23/2017	91
52	19	24.988	1 in 52.1	20	12/11/2018	10
53	19	24.988	1 in 52.1	23	10/9/2018	19
54	18	23.673	1 in 55.0	30	10/16/2018	18
55	18	23.673	1 in 55.0	19	1/8/2019	6
56	17	22.358	1 in 58.2	24	12/26/2017	60
57	17	22.358	1 in 58.2	23	9/26/2017	73
58	16	21.042	1 in 61.9	21	4/3/2018	46
59	16	21.042	1 in 61.9	28	8/21/2018	26
60	15	19.727	1 in 66.0	14	5/24/2016	143	Overdue
61	15	19.727	1 in 66.0	18	1/29/2019	3
62	14	18.412	1 in 70.7	18	7/17/2018	31
63	14	18.412	1 in 70.7	18	3/22/2016	152	Overdue
64	13	17.097	1 in 76.2	18	4/24/2018	43
65	13	17.097	1 in 76.2	15	5/22/2018	39
66	12	15.782	1 in 82.5	22	2/6/2018	54
67	12	15.782	1 in 82.5	22	3/29/2016	151
68	11	14.467	1 in 90.0	12	2/13/2018	53
69	11	14.467	1 in 90.0	11	12/18/2018	9
70	10	13.152	1 in 99.0	11	4/4/2017	98
71	10	13.152	1 in 99.0	7	1/20/2015	213	Overdue
72	9	11.836	1 in 110	11	4/27/2010	460	Overdue
73	9	11.836	1 in 110	13	10/27/2015	173
74	8	10.521	1 in 124	4	5/2/2017	94
75	8	10.521	1 in 124	15	9/19/2017	74
76	7	9.206	1 in 141	10	7/3/2018	33
77	7	9.206	1 in 141	6	9/1/2009	492	Overdue
78	6	7.891	1 in 165	10	1/15/2019	5
79	6	7.891	1 in 165	12	10/3/2017	72
80	5	6.576	1 in 198	10	7/18/2017	83
81	5	6.576	1 in 198	8	9/6/2016	128
82	4	5.261	1 in 248	2	8/12/1997	1,121	Overdue
83	4	5.261	1 in 248	3	6/21/2011	400
84	3	3.945	1 in 330	5	3/1/2011	416
85	3	3.945	1 in 330	6	7/7/2015	189
86	2	2.630	1 in 495	5	1/22/2019	4
87	2	2.630	1 in 495	6	12/31/2013	268
88	1	1.315	1 in 990	2	3/29/2011	412
89	1	1.315	1 in 990	1	10/10/2000	956

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