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 337 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	0.003	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	0.005	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	0.009	1 in 38,621	0	Never	Never
56	1,367	0.010	1 in 33,197	0	Never	Never
57	1,579	0.012	1 in 28,739	0	Never	Never
58	1,824	0.014	1 in 24,879	0	Never	Never
59	2,093	0.016	1 in 21,682	0	Never	Never
60	2,400	0.018	1 in 18,908	0	Never	Never
61	2,738	0.020	1 in 16,574	0	Never	Never
62	3,120	0.023	1 in 14,545	0	Never	Never
63	3,539	0.026	1 in 12,823	0	Never	Never
64	4,011	0.030	1 in 11,314	0	Never	Never
65	4,526	0.034	1 in 10,026	0	Never	Never
66	5,102	0.038	1 in 8,894	0	Never	Never
67	5,730	0.043	1 in 7,920	0	Never	Never
68	6,428	0.048	1 in 7,060	0	Never	Never
69	7,186	0.053	1 in 6,315	0	Never	Never
70	8,026	0.060	1 in 5,654	0	Never	Never
71	8,934	0.066	1 in 5,079	0	Never	Never
72	9,934	0.074	1 in 4,568	0	Never	Never
73	11,014	0.082	1 in 4,120	0	Never	Never
74	12,197	0.091	1 in 3,721	0	Never	Never
75	13,470	0.100	1 in 3,369	0	Never	Never
76	14,860	0.110	1 in 3,054	0	Never	Never
77	16,350	0.121	1 in 2,776	0	Never	Never
78	17,969	0.133	1 in 2,525	0	Never	Never
79	19,701	0.146	1 in 2,303	0	Never	Never
80	21,575	0.160	1 in 2,103	0	Never	Never
81	23,573	0.175	1 in 1,925	0	Never	Never
82	25,728	0.191	1 in 1,764	0	Never	Never
83	28,018	0.208	1 in 1,620	1	2/3/2015	238
84	30,478	0.226	1 in 1,489	0	Never	Never
85	33,086	0.246	1 in 1,372	0	Never	Never
86	35,877	0.266	1 in 1,265	0	Never	Never
87	38,827	0.288	1 in 1,169	0	Never	Never
88	41,975	0.312	1 in 1,081	0	Never	Never
89	45,292	0.336	1 in 1,002	0	Never	Never
90	48,819	0.363	1 in 930	0	Never	Never
91	52,527	0.390	1 in 864	1	12/1/2015	195
92	56,456	0.419	1 in 804	1	7/9/2013	320
93	60,575	0.450	1 in 749	0	Never	Never
94	64,928	0.482	1 in 699	2	5/19/2015	223
95	69,478	0.516	1 in 653	2	11/14/2017	93
96	74,271	0.552	1 in 611	1	8/26/2014	261
97	79,269	0.589	1 in 572	0	Never	Never
98	84,518	0.628	1 in 537	1	2/20/2018	79
99	89,976	0.668	1 in 504	1	8/13/2019	2
100	95,693	0.711	1 in 474	1	6/4/2019	12
101	101,621	0.755	1 in 447	0	Never	Never
102	107,811	0.801	1 in 421	0	Never	Never
103	114,214	0.848	1 in 397	0	Never	Never
104	120,880	0.898	1 in 375	1	6/9/2015	220
105	127,756	0.949	1 in 355	0	Never	Never
106	134,895	1.002	1 in 336	1	2/24/2015	235
107	142,238	1.056	1 in 319	1	7/3/2018	60
108	149,839	1.113	1 in 303	3	10/30/2018	43
109	157,637	1.171	1 in 288	1	8/11/2015	211
110	165,685	1.230	1 in 274	0	Never	Never
111	173,918	1.292	1 in 261	1	2/12/2019	28
112	182,392	1.354	1 in 249	2	8/21/2018	53
113	191,035	1.419	1 in 238	1	8/28/2018	52
114	199,904	1.485	1 in 227	1	10/7/2014	255
115	208,926	1.552	1 in 217	3	4/23/2019	18
116	218,156	1.620	1 in 208	5	2/5/2019	29
117	227,517	1.690	1 in 199	1	11/28/2017	91
118	237,067	1.761	1 in 191	1	3/20/2018	75
119	246,723	1.832	1 in 184	1	1/3/2017	138
120	256,543	1.905	1 in 177	3	11/15/2016	145
121	266,443	1.979	1 in 170	1	10/27/2015	200
122	276,480	2.053	1 in 164	1	7/31/2018	56
123	286,566	2.128	1 in 158	1	11/24/2015	196
124	296,761	2.204	1 in 153	2	12/31/2013	295
125	306,971	2.280	1 in 148	2	5/1/2018	69
126	317,257	2.356	1 in 143	2	1/19/2016	188
127	327,524	2.432	1 in 139	1	11/8/2016	146
128	337,832	2.509	1 in 134	4	9/29/2015	204
129	348,083	2.585	1 in 130	3	12/12/2017	89
130	358,340	2.661	1 in 127	0	Never	Never	Overdue
131	368,500	2.737	1 in 123	2	5/27/2014	274	Overdue
132	378,627	2.812	1 in 120	2	4/26/2016	174
133	388,618	2.886	1 in 117	3	5/7/2019	16
134	398,536	2.960	1 in 114	2	10/18/2016	149
135	408,276	3.032	1 in 111	3	6/18/2019	10
136	417,905	3.103	1 in 109	3	1/16/2018	84
137	427,313	3.173	1 in 106	5	4/30/2019	17
138	436,569	3.242	1 in 104	2	11/6/2018	42
139	445,564	3.309	1 in 102	5	7/9/2019	7
140	454,367	3.374	1 in 99.9	3	10/11/2016	150
141	462,867	3.437	1 in 98.0	1	1/31/2017	134
142	471,138	3.499	1 in 96.3	3	6/6/2017	116
143	479,066	3.558	1 in 94.7	7	7/23/2019	5
144	486,727	3.615	1 in 93.2	5	5/15/2018	67
145	494,009	3.669	1 in 91.9	3	3/26/2019	22
146	500,989	3.720	1 in 90.6	7	4/16/2019	19
147	507,555	3.769	1 in 89.4	4	11/20/2018	40
148	513,788	3.816	1 in 88.3	5	7/10/2018	59
149	519,575	3.858	1 in 87.3	4	7/16/2019	6
150	525,000	3.899	1 in 86.4	3	8/20/2019	1
151	529,952	3.936	1 in 85.6	5	7/30/2019	4
152	534,517	3.969	1 in 84.9	6	4/4/2017	125
153	538,585	4.000	1 in 84.3	4	12/25/2018	35
154	542,246	4.027	1 in 83.7	1	4/10/2018	72
155	545,390	4.050	1 in 83.2	2	8/23/2016	157
156	548,110	4.070	1 in 82.8	2	10/28/2014	252	Overdue
157	550,299	4.087	1 in 82.5	5	5/28/2019	13
158	552,052	4.100	1 in 82.2	5	3/1/2016	182	Overdue
159	553,264	4.109	1 in 82.0	4	6/26/2018	61
160	554,033	4.114	1 in 81.9	3	9/26/2017	100
161	554,256	4.116	1 in 81.9	5	5/22/2018	66
162	554,033	4.114	1 in 81.9	3	8/1/2017	108
163	553,264	4.109	1 in 82.0	4	9/5/2017	103
164	552,052	4.100	1 in 82.2	2	3/19/2019	23
165	550,299	4.087	1 in 82.5	5	1/22/2019	31
166	548,110	4.070	1 in 82.8	4	11/17/2015	197	Overdue
167	545,390	4.050	1 in 83.2	7	4/24/2018	70
168	542,246	4.027	1 in 83.7	6	8/14/2018	54
169	538,585	4.000	1 in 84.3	4	3/12/2019	24
170	534,517	3.969	1 in 84.9	3	11/13/2018	41
171	529,952	3.936	1 in 85.6	6	4/2/2019	21
172	525,000	3.899	1 in 86.4	6	12/4/2018	38
173	519,575	3.858	1 in 87.3	5	2/19/2019	27
174	513,788	3.816	1 in 88.3	3	3/13/2018	76
175	507,555	3.769	1 in 89.4	5	7/17/2018	58
176	500,989	3.720	1 in 90.6	2	9/27/2016	152
177	494,009	3.669	1 in 91.9	4	5/16/2017	119
178	486,727	3.615	1 in 93.2	3	8/29/2017	104
179	479,066	3.558	1 in 94.7	3	6/11/2019	11
180	471,138	3.499	1 in 96.3	3	4/3/2018	73
181	462,867	3.437	1 in 98.0	5	3/5/2019	25
182	454,367	3.374	1 in 99.9	2	12/2/2014	247	Overdue
183	445,564	3.309	1 in 102	4	1/8/2019	33
184	436,569	3.242	1 in 104	5	10/2/2018	47
185	427,313	3.173	1 in 106	4	8/6/2019	3
186	417,905	3.103	1 in 109	2	1/1/2019	34
187	408,276	3.032	1 in 111	1	9/12/2017	102
188	398,536	2.960	1 in 114	1	11/19/2013	301	Overdue
189	388,618	2.886	1 in 117	1	12/27/2016	139
190	378,627	2.812	1 in 120	3	12/22/2015	192
191	368,500	2.737	1 in 123	3	9/4/2018	51
192	358,340	2.661	1 in 127	0	Never	Never	Overdue
193	348,083	2.585	1 in 130	2	2/16/2016	184
194	337,832	2.509	1 in 134	1	11/3/2015	199
195	327,524	2.432	1 in 139	2	8/8/2017	107
196	317,257	2.356	1 in 143	7	10/24/2017	96
197	306,971	2.280	1 in 148	3	6/5/2018	64
198	296,761	2.204	1 in 153	5	2/6/2018	81
199	286,566	2.128	1 in 158	3	1/15/2019	32
200	276,480	2.053	1 in 164	3	6/25/2019	9
201	266,443	1.979	1 in 170	3	7/4/2017	112
202	256,543	1.905	1 in 177	1	11/29/2016	143
203	246,723	1.832	1 in 184	3	10/9/2018	46
204	237,067	1.761	1 in 191	1	7/2/2013	321
205	227,517	1.690	1 in 199	0	Never	Never
206	218,156	1.620	1 in 208	1	1/5/2016	190
207	208,926	1.552	1 in 217	1	9/16/2014	258
208	199,904	1.485	1 in 227	2	7/11/2017	111
209	191,035	1.419	1 in 238	1	11/22/2016	144
210	182,392	1.354	1 in 249	0	Never	Never
211	173,918	1.292	1 in 261	1	10/8/2013	307
212	165,685	1.230	1 in 274	0	Never	Never
213	157,637	1.171	1 in 288	0	Never	Never
214	149,839	1.113	1 in 303	0	Never	Never
215	142,238	1.056	1 in 319	1	9/18/2018	49
216	134,895	1.002	1 in 336	2	4/28/2015	226
217	127,756	0.949	1 in 355	0	Never	Never
218	120,880	0.898	1 in 375	0	Never	Never
219	114,214	0.848	1 in 397	3	3/28/2017	126
220	107,811	0.801	1 in 421	2	10/17/2017	97
221	101,621	0.755	1 in 447	0	Never	Never
222	95,693	0.711	1 in 474	1	12/13/2016	141
223	89,976	0.668	1 in 504	0	Never	Never
224	84,518	0.628	1 in 537	0	Never	Never
225	79,269	0.589	1 in 572	1	5/8/2018	68
226	74,271	0.552	1 in 611	0	Never	Never
227	69,478	0.516	1 in 653	1	4/18/2017	123
228	64,928	0.482	1 in 699	0	Never	Never
229	60,575	0.450	1 in 749	1	9/22/2015	205
230	56,456	0.419	1 in 804	0	Never	Never
231	52,527	0.390	1 in 864	1	4/12/2016	176
232	48,819	0.363	1 in 930	3	4/25/2017	122
233	45,292	0.336	1 in 1,002	0	Never	Never
234	41,975	0.312	1 in 1,081	0	Never	Never
235	38,827	0.288	1 in 1,169	0	Never	Never
236	35,877	0.266	1 in 1,265	0	Never	Never
237	33,086	0.246	1 in 1,372	1	10/13/2015	202
238	30,478	0.226	1 in 1,489	1	1/13/2015	241
239	28,018	0.208	1 in 1,620	1	2/10/2015	237
240	25,728	0.191	1 in 1,764	0	Never	Never
241	23,573	0.175	1 in 1,925	1	3/4/2014	286
242	21,575	0.160	1 in 2,103	0	Never	Never
243	19,701	0.146	1 in 2,303	0	Never	Never
244	17,969	0.133	1 in 2,525	0	Never	Never
245	16,350	0.121	1 in 2,776	0	Never	Never
246	14,860	0.110	1 in 3,054	0	Never	Never
247	13,470	0.100	1 in 3,369	0	Never	Never
248	12,197	0.091	1 in 3,721	0	Never	Never
249	11,014	0.082	1 in 4,120	0	Never	Never
250	9,934	0.074	1 in 4,568	0	Never	Never
251	8,934	0.066	1 in 5,079	0	Never	Never
252	8,026	0.060	1 in 5,654	0	Never	Never
253	7,186	0.053	1 in 6,315	0	Never	Never
254	6,428	0.048	1 in 7,060	0	Never	Never
255	5,730	0.043	1 in 7,920	0	Never	Never
256	5,102	0.038	1 in 8,894	0	Never	Never
257	4,526	0.034	1 in 10,026	0	Never	Never
258	4,011	0.030	1 in 11,314	0	Never	Never
259	3,539	0.026	1 in 12,823	0	Never	Never
260	3,120	0.023	1 in 14,545	0	Never	Never
261	2,738	0.020	1 in 16,574	0	Never	Never
262	2,400	0.018	1 in 18,908	0	Never	Never
263	2,093	0.016	1 in 21,682	0	Never	Never
264	1,824	0.014	1 in 24,879	0	Never	Never
265	1,579	0.012	1 in 28,739	0	Never	Never
266	1,367	0.010	1 in 33,197	0	Never	Never
267	1,175	0.009	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	0.005	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	0.003	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 1,329 Draws
Number Sum Total	Possible Combinations	Count	Frequency	Count	Last Drawn	Draws Ago
3	1	1.342	1 in 990	1	12/15/2015	193
4	1	1.342	1 in 990	0	Never	Never
5	2	2.685	1 in 495	3	11/17/2015	197
6	2	2.685	1 in 495	2	11/20/2018	40
7	3	4.027	1 in 330	3	12/12/2017	89
8	3	4.027	1 in 330	3	11/27/2018	39
9	4	5.370	1 in 248	7	6/5/2018	64
10	4	5.370	1 in 248	3	12/20/2016	140
11	5	6.712	1 in 198	6	11/28/2017	91
12	5	6.712	1 in 198	7	5/16/2017	119
13	6	8.055	1 in 165	4	6/11/2019	11
14	6	8.055	1 in 165	7	6/25/2019	9
15	7	9.397	1 in 141	8	5/26/2015	222
16	7	9.397	1 in 141	6	3/8/2016	181
17	8	10.739	1 in 124	13	11/22/2016	144
18	8	10.739	1 in 124	14	4/23/2019	18
19	9	12.082	1 in 110	6	2/25/2014	287	Overdue
20	9	12.082	1 in 110	7	10/28/2014	252	Overdue
21	10	13.424	1 in 99.0	14	7/25/2017	109
22	10	13.424	1 in 99.0	20	5/8/2018	68
23	11	14.767	1 in 90.0	14	4/26/2016	174
24	11	14.767	1 in 90.0	13	1/1/2019	34
25	12	16.109	1 in 82.5	18	2/9/2016	185	Overdue
26	12	16.109	1 in 82.5	7	10/10/2017	98
27	13	17.452	1 in 76.2	15	11/7/2017	94
28	13	17.452	1 in 76.2	22	8/14/2018	54
29	14	18.794	1 in 70.7	23	4/16/2019	19
30	14	18.794	1 in 70.7	14	8/20/2019	1
31	15	20.136	1 in 66.0	23	8/25/2015	209	Overdue
32	15	20.136	1 in 66.0	19	6/26/2018	61
33	16	21.479	1 in 61.9	30	7/16/2019	6
34	16	21.479	1 in 61.9	20	2/26/2019	26
35	17	22.821	1 in 58.2	26	3/19/2019	23
36	17	22.821	1 in 58.2	27	5/21/2019	14
37	18	24.164	1 in 55.0	22	12/19/2017	88
38	18	24.164	1 in 55.0	27	9/11/2018	50
39	19	25.506	1 in 52.1	18	9/25/2018	48
40	19	25.506	1 in 52.1	27	5/28/2019	13
41	20	26.848	1 in 49.5	46	11/13/2018	41
42	20	26.848	1 in 49.5	32	4/10/2018	72
43	21	28.191	1 in 47.1	23	12/25/2018	35
44	21	28.191	1 in 47.1	26	3/26/2019	22
45	22	29.533	1 in 45.0	29	2/5/2019	29
46	22	29.533	1 in 45.0	29	9/18/2018	49
47	22	29.533	1 in 45.0	27	4/2/2019	21
48	21	28.191	1 in 47.1	29	9/4/2018	51
49	21	28.191	1 in 47.1	37	3/20/2018	75
50	20	26.848	1 in 49.5	14	5/14/2019	15
51	20	26.848	1 in 49.5	23	8/6/2019	3
52	19	25.506	1 in 52.1	20	12/11/2018	37
53	19	25.506	1 in 52.1	23	10/9/2018	46
54	18	24.164	1 in 55.0	30	10/16/2018	45
55	18	24.164	1 in 55.0	20	6/4/2019	12
56	17	22.821	1 in 58.2	24	12/26/2017	87
57	17	22.821	1 in 58.2	23	9/26/2017	100
58	16	21.479	1 in 61.9	21	4/3/2018	73
59	16	21.479	1 in 61.9	29	7/9/2019	7
60	15	20.136	1 in 66.0	14	5/24/2016	170	Overdue
61	15	20.136	1 in 66.0	18	1/29/2019	30
62	14	18.794	1 in 70.7	18	7/17/2018	58
63	14	18.794	1 in 70.7	18	3/22/2016	179	Overdue
64	13	17.452	1 in 76.2	19	2/19/2019	27
65	13	17.452	1 in 76.2	15	5/22/2018	66
66	12	16.109	1 in 82.5	23	7/23/2019	5
67	12	16.109	1 in 82.5	22	3/29/2016	178	Overdue
68	11	14.767	1 in 90.0	12	2/13/2018	80
69	11	14.767	1 in 90.0	12	6/18/2019	10
70	10	13.424	1 in 99.0	11	4/4/2017	125
71	10	13.424	1 in 99.0	8	8/13/2019	2
72	9	12.082	1 in 110	12	5/7/2019	16
73	9	12.082	1 in 110	13	10/27/2015	200
74	8	10.739	1 in 124	4	5/2/2017	121
75	8	10.739	1 in 124	15	9/19/2017	101
76	7	9.397	1 in 141	10	7/3/2018	60
77	7	9.397	1 in 141	6	9/1/2009	519	Overdue
78	6	8.055	1 in 165	12	7/2/2019	8
79	6	8.055	1 in 165	12	10/3/2017	99
80	5	6.712	1 in 198	10	7/18/2017	110
81	5	6.712	1 in 198	9	4/9/2019	20
82	4	5.370	1 in 248	3	7/30/2019	4
83	4	5.370	1 in 248	3	6/21/2011	427
84	3	4.027	1 in 330	5	3/1/2011	443
85	3	4.027	1 in 330	6	7/7/2015	216
86	2	2.685	1 in 495	6	4/30/2019	17
87	2	2.685	1 in 495	6	12/31/2013	295
88	1	1.342	1 in 990	2	3/29/2011	439
89	1	1.342	1 in 990	1	10/10/2000	983

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