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 319 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	0.004	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	0.010	1 in 33,197	0	Never	Never
57	1,579	0.011	1 in 28,739	0	Never	Never
58	1,824	0.013	1 in 24,879	0	Never	Never
59	2,093	0.015	1 in 21,682	0	Never	Never
60	2,400	0.017	1 in 18,908	0	Never	Never
61	2,738	0.019	1 in 16,574	0	Never	Never
62	3,120	0.022	1 in 14,545	0	Never	Never
63	3,539	0.025	1 in 12,823	0	Never	Never
64	4,011	0.028	1 in 11,314	0	Never	Never
65	4,526	0.032	1 in 10,026	0	Never	Never
66	5,102	0.036	1 in 8,894	0	Never	Never
67	5,730	0.040	1 in 7,920	0	Never	Never
68	6,428	0.045	1 in 7,060	0	Never	Never
69	7,186	0.051	1 in 6,315	0	Never	Never
70	8,026	0.056	1 in 5,654	0	Never	Never
71	8,934	0.063	1 in 5,079	0	Never	Never
72	9,934	0.070	1 in 4,568	0	Never	Never
73	11,014	0.077	1 in 4,120	0	Never	Never
74	12,197	0.086	1 in 3,721	0	Never	Never
75	13,470	0.095	1 in 3,369	0	Never	Never
76	14,860	0.104	1 in 3,054	0	Never	Never
77	16,350	0.115	1 in 2,776	0	Never	Never
78	17,969	0.126	1 in 2,525	0	Never	Never
79	19,701	0.138	1 in 2,303	0	Never	Never
80	21,575	0.152	1 in 2,103	0	Never	Never
81	23,573	0.166	1 in 1,925	0	Never	Never
82	25,728	0.181	1 in 1,764	0	Never	Never
83	28,018	0.197	1 in 1,620	1	2/3/2015	220
84	30,478	0.214	1 in 1,489	0	Never	Never
85	33,086	0.233	1 in 1,372	0	Never	Never
86	35,877	0.252	1 in 1,265	0	Never	Never
87	38,827	0.273	1 in 1,169	0	Never	Never
88	41,975	0.295	1 in 1,081	0	Never	Never
89	45,292	0.318	1 in 1,002	0	Never	Never
90	48,819	0.343	1 in 930	0	Never	Never
91	52,527	0.369	1 in 864	1	12/1/2015	177
92	56,456	0.397	1 in 804	1	7/9/2013	302
93	60,575	0.426	1 in 749	0	Never	Never
94	64,928	0.456	1 in 699	2	5/19/2015	205
95	69,478	0.488	1 in 653	2	11/14/2017	75
96	74,271	0.522	1 in 611	1	8/26/2014	243
97	79,269	0.557	1 in 572	0	Never	Never
98	84,518	0.594	1 in 537	1	2/20/2018	61
99	89,976	0.632	1 in 504	0	Never	Never
100	95,693	0.673	1 in 474	0	Never	Never
101	101,621	0.714	1 in 447	0	Never	Never
102	107,811	0.758	1 in 421	0	Never	Never
103	114,214	0.803	1 in 397	0	Never	Never
104	120,880	0.850	1 in 375	1	6/9/2015	202
105	127,756	0.898	1 in 355	0	Never	Never
106	134,895	0.948	1 in 336	1	2/24/2015	217
107	142,238	1.000	1 in 319	1	7/3/2018	42
108	149,839	1.053	1 in 303	3	10/30/2018	25
109	157,637	1.108	1 in 288	1	8/11/2015	193
110	165,685	1.165	1 in 274	0	Never	Never
111	173,918	1.223	1 in 261	1	2/12/2019	10
112	182,392	1.282	1 in 249	2	8/21/2018	35
113	191,035	1.343	1 in 238	1	8/28/2018	34
114	199,904	1.405	1 in 227	1	10/7/2014	237
115	208,926	1.469	1 in 217	2	5/23/2017	100
116	218,156	1.534	1 in 208	5	2/5/2019	11
117	227,517	1.599	1 in 199	1	11/28/2017	73
118	237,067	1.666	1 in 191	1	3/20/2018	57
119	246,723	1.734	1 in 184	1	1/3/2017	120
120	256,543	1.803	1 in 177	3	11/15/2016	127
121	266,443	1.873	1 in 170	1	10/27/2015	182
122	276,480	1.944	1 in 164	1	7/31/2018	38
123	286,566	2.014	1 in 158	1	11/24/2015	178
124	296,761	2.086	1 in 153	2	12/31/2013	277
125	306,971	2.158	1 in 148	2	5/1/2018	51
126	317,257	2.230	1 in 143	2	1/19/2016	170
127	327,524	2.302	1 in 139	1	11/8/2016	128
128	337,832	2.375	1 in 134	4	9/29/2015	186
129	348,083	2.447	1 in 130	3	12/12/2017	71
130	358,340	2.519	1 in 127	0	Never	Never	Overdue
131	368,500	2.590	1 in 123	2	5/27/2014	256	Overdue
132	378,627	2.662	1 in 120	2	4/26/2016	156
133	388,618	2.732	1 in 117	2	9/11/2018	32
134	398,536	2.802	1 in 114	2	10/18/2016	131
135	408,276	2.870	1 in 111	2	11/27/2018	21
136	417,905	2.938	1 in 109	3	1/16/2018	66
137	427,313	3.004	1 in 106	4	7/26/2016	143
138	436,569	3.069	1 in 104	2	11/6/2018	24
139	445,564	3.132	1 in 102	3	10/16/2018	27
140	454,367	3.194	1 in 99.9	3	10/11/2016	132
141	462,867	3.254	1 in 98.0	1	1/31/2017	116
142	471,138	3.312	1 in 96.3	3	6/6/2017	98
143	479,066	3.368	1 in 94.7	6	3/27/2018	56
144	486,727	3.421	1 in 93.2	5	5/15/2018	49
145	494,009	3.473	1 in 91.9	3	3/26/2019	4
146	500,989	3.522	1 in 90.6	7	4/16/2019	1
147	507,555	3.568	1 in 89.4	4	11/20/2018	22
148	513,788	3.612	1 in 88.3	5	7/10/2018	41
149	519,575	3.652	1 in 87.3	3	12/18/2018	18
150	525,000	3.691	1 in 86.4	2	3/18/2014	266	Overdue
151	529,952	3.725	1 in 85.6	4	7/12/2016	145
152	534,517	3.757	1 in 84.9	6	4/4/2017	107
153	538,585	3.786	1 in 84.3	4	12/25/2018	17
154	542,246	3.812	1 in 83.7	1	4/10/2018	54
155	545,390	3.834	1 in 83.2	2	8/23/2016	139
156	548,110	3.853	1 in 82.8	2	10/28/2014	234	Overdue
157	550,299	3.868	1 in 82.5	4	7/24/2018	39
158	552,052	3.881	1 in 82.2	5	3/1/2016	164
159	553,264	3.889	1 in 82.0	4	6/26/2018	43
160	554,033	3.895	1 in 81.9	3	9/26/2017	82
161	554,256	3.896	1 in 81.9	5	5/22/2018	48
162	554,033	3.895	1 in 81.9	3	8/1/2017	90
163	553,264	3.889	1 in 82.0	4	9/5/2017	85
164	552,052	3.881	1 in 82.2	2	3/19/2019	5
165	550,299	3.868	1 in 82.5	5	1/22/2019	13
166	548,110	3.853	1 in 82.8	4	11/17/2015	179	Overdue
167	545,390	3.834	1 in 83.2	7	4/24/2018	52
168	542,246	3.812	1 in 83.7	6	8/14/2018	36
169	538,585	3.786	1 in 84.3	4	3/12/2019	6
170	534,517	3.757	1 in 84.9	3	11/13/2018	23
171	529,952	3.725	1 in 85.6	6	4/2/2019	3
172	525,000	3.691	1 in 86.4	6	12/4/2018	20
173	519,575	3.652	1 in 87.3	5	2/19/2019	9
174	513,788	3.612	1 in 88.3	3	3/13/2018	58
175	507,555	3.568	1 in 89.4	5	7/17/2018	40
176	500,989	3.522	1 in 90.6	2	9/27/2016	134
177	494,009	3.473	1 in 91.9	4	5/16/2017	101
178	486,727	3.421	1 in 93.2	3	8/29/2017	86
179	479,066	3.368	1 in 94.7	2	4/9/2019	2
180	471,138	3.312	1 in 96.3	3	4/3/2018	55
181	462,867	3.254	1 in 98.0	5	3/5/2019	7
182	454,367	3.194	1 in 99.9	2	12/2/2014	229	Overdue
183	445,564	3.132	1 in 102	4	1/8/2019	15
184	436,569	3.069	1 in 104	5	10/2/2018	29
185	427,313	3.004	1 in 106	2	2/13/2018	62
186	417,905	2.938	1 in 109	2	1/1/2019	16
187	408,276	2.870	1 in 111	1	9/12/2017	84
188	398,536	2.802	1 in 114	1	11/19/2013	283	Overdue
189	388,618	2.732	1 in 117	1	12/27/2016	121
190	378,627	2.662	1 in 120	3	12/22/2015	174
191	368,500	2.590	1 in 123	3	9/4/2018	33
192	358,340	2.519	1 in 127	0	Never	Never	Overdue
193	348,083	2.447	1 in 130	2	2/16/2016	166
194	337,832	2.375	1 in 134	1	11/3/2015	181
195	327,524	2.302	1 in 139	2	8/8/2017	89
196	317,257	2.230	1 in 143	7	10/24/2017	78
197	306,971	2.158	1 in 148	3	6/5/2018	46
198	296,761	2.086	1 in 153	5	2/6/2018	63
199	286,566	2.014	1 in 158	3	1/15/2019	14
200	276,480	1.944	1 in 164	1	9/6/2016	137
201	266,443	1.873	1 in 170	3	7/4/2017	94
202	256,543	1.803	1 in 177	1	11/29/2016	125
203	246,723	1.734	1 in 184	3	10/9/2018	28
204	237,067	1.666	1 in 191	1	7/2/2013	303
205	227,517	1.599	1 in 199	0	Never	Never
206	218,156	1.534	1 in 208	1	1/5/2016	172
207	208,926	1.469	1 in 217	1	9/16/2014	240
208	199,904	1.405	1 in 227	2	7/11/2017	93
209	191,035	1.343	1 in 238	1	11/22/2016	126
210	182,392	1.282	1 in 249	0	Never	Never
211	173,918	1.223	1 in 261	1	10/8/2013	289
212	165,685	1.165	1 in 274	0	Never	Never
213	157,637	1.108	1 in 288	0	Never	Never
214	149,839	1.053	1 in 303	0	Never	Never
215	142,238	1.000	1 in 319	1	9/18/2018	31
216	134,895	0.948	1 in 336	2	4/28/2015	208
217	127,756	0.898	1 in 355	0	Never	Never
218	120,880	0.850	1 in 375	0	Never	Never
219	114,214	0.803	1 in 397	3	3/28/2017	108
220	107,811	0.758	1 in 421	2	10/17/2017	79
221	101,621	0.714	1 in 447	0	Never	Never
222	95,693	0.673	1 in 474	1	12/13/2016	123
223	89,976	0.632	1 in 504	0	Never	Never
224	84,518	0.594	1 in 537	0	Never	Never
225	79,269	0.557	1 in 572	1	5/8/2018	50
226	74,271	0.522	1 in 611	0	Never	Never
227	69,478	0.488	1 in 653	1	4/18/2017	105
228	64,928	0.456	1 in 699	0	Never	Never
229	60,575	0.426	1 in 749	1	9/22/2015	187
230	56,456	0.397	1 in 804	0	Never	Never
231	52,527	0.369	1 in 864	1	4/12/2016	158
232	48,819	0.343	1 in 930	3	4/25/2017	104
233	45,292	0.318	1 in 1,002	0	Never	Never
234	41,975	0.295	1 in 1,081	0	Never	Never
235	38,827	0.273	1 in 1,169	0	Never	Never
236	35,877	0.252	1 in 1,265	0	Never	Never
237	33,086	0.233	1 in 1,372	1	10/13/2015	184
238	30,478	0.214	1 in 1,489	1	1/13/2015	223
239	28,018	0.197	1 in 1,620	1	2/10/2015	219
240	25,728	0.181	1 in 1,764	0	Never	Never
241	23,573	0.166	1 in 1,925	1	3/4/2014	268
242	21,575	0.152	1 in 2,103	0	Never	Never
243	19,701	0.138	1 in 2,303	0	Never	Never
244	17,969	0.126	1 in 2,525	0	Never	Never
245	16,350	0.115	1 in 2,776	0	Never	Never
246	14,860	0.104	1 in 3,054	0	Never	Never
247	13,470	0.095	1 in 3,369	0	Never	Never
248	12,197	0.086	1 in 3,721	0	Never	Never
249	11,014	0.077	1 in 4,120	0	Never	Never
250	9,934	0.070	1 in 4,568	0	Never	Never
251	8,934	0.063	1 in 5,079	0	Never	Never
252	8,026	0.056	1 in 5,654	0	Never	Never
253	7,186	0.051	1 in 6,315	0	Never	Never
254	6,428	0.045	1 in 7,060	0	Never	Never
255	5,730	0.040	1 in 7,920	0	Never	Never
256	5,102	0.036	1 in 8,894	0	Never	Never
257	4,526	0.032	1 in 10,026	0	Never	Never
258	4,011	0.028	1 in 11,314	0	Never	Never
259	3,539	0.025	1 in 12,823	0	Never	Never
260	3,120	0.022	1 in 14,545	0	Never	Never
261	2,738	0.019	1 in 16,574	0	Never	Never
262	2,400	0.017	1 in 18,908	0	Never	Never
263	2,093	0.015	1 in 21,682	0	Never	Never
264	1,824	0.013	1 in 24,879	0	Never	Never
265	1,579	0.011	1 in 28,739	0	Never	Never
266	1,367	0.010	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	0.003	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 1,311 Draws
Number Sum Total	Possible Combinations	Count	Frequency	Count	Last Drawn	Draws Ago
3	1	1.324	1 in 990	1	12/15/2015	175
4	1	1.324	1 in 990	0	Never	Never
5	2	2.648	1 in 495	3	11/17/2015	179
6	2	2.648	1 in 495	2	11/20/2018	22
7	3	3.973	1 in 330	3	12/12/2017	71
8	3	3.973	1 in 330	3	11/27/2018	21
9	4	5.297	1 in 248	7	6/5/2018	46
10	4	5.297	1 in 248	3	12/20/2016	122
11	5	6.621	1 in 198	6	11/28/2017	73
12	5	6.621	1 in 198	7	5/16/2017	101
13	6	7.945	1 in 165	3	8/11/2009	504	Overdue
14	6	7.945	1 in 165	6	10/5/2010	446	Overdue
15	7	9.270	1 in 141	8	5/26/2015	204
16	7	9.270	1 in 141	6	3/8/2016	163
17	8	10.594	1 in 124	13	11/22/2016	126
18	8	10.594	1 in 124	13	1/2/2018	68
19	9	11.918	1 in 110	6	2/25/2014	269	Overdue
20	9	11.918	1 in 110	7	10/28/2014	234	Overdue
21	10	13.242	1 in 99.0	14	7/25/2017	91
22	10	13.242	1 in 99.0	20	5/8/2018	50
23	11	14.567	1 in 90.0	14	4/26/2016	156
24	11	14.567	1 in 90.0	13	1/1/2019	16
25	12	15.891	1 in 82.5	18	2/9/2016	167	Overdue
26	12	15.891	1 in 82.5	7	10/10/2017	80
27	13	17.215	1 in 76.2	15	11/7/2017	76
28	13	17.215	1 in 76.2	22	8/14/2018	36
29	14	18.539	1 in 70.7	23	4/16/2019	1
30	14	18.539	1 in 70.7	13	5/31/2016	151	Overdue
31	15	19.864	1 in 66.0	23	8/25/2015	191	Overdue
32	15	19.864	1 in 66.0	19	6/26/2018	43
33	16	21.188	1 in 61.9	29	2/17/2015	218	Overdue
34	16	21.188	1 in 61.9	20	2/26/2019	8
35	17	22.512	1 in 58.2	26	3/19/2019	5
36	17	22.512	1 in 58.2	26	10/23/2018	26
37	18	23.836	1 in 55.0	22	12/19/2017	70
38	18	23.836	1 in 55.0	27	9/11/2018	32
39	19	25.161	1 in 52.1	18	9/25/2018	30
40	19	25.161	1 in 52.1	26	6/12/2018	45
41	20	26.485	1 in 49.5	46	11/13/2018	23
42	20	26.485	1 in 49.5	32	4/10/2018	54
43	21	27.809	1 in 47.1	23	12/25/2018	17
44	21	27.809	1 in 47.1	26	3/26/2019	4
45	22	29.133	1 in 45.0	29	2/5/2019	11
46	22	29.133	1 in 45.0	29	9/18/2018	31
47	22	29.133	1 in 45.0	27	4/2/2019	3
48	21	27.809	1 in 47.1	29	9/4/2018	33
49	21	27.809	1 in 47.1	37	3/20/2018	57
50	20	26.485	1 in 49.5	13	4/15/2014	262	Overdue
51	20	26.485	1 in 49.5	22	5/23/2017	100	Overdue
52	19	25.161	1 in 52.1	20	12/11/2018	19
53	19	25.161	1 in 52.1	23	10/9/2018	28
54	18	23.836	1 in 55.0	30	10/16/2018	27
55	18	23.836	1 in 55.0	19	1/8/2019	15
56	17	22.512	1 in 58.2	24	12/26/2017	69
57	17	22.512	1 in 58.2	23	9/26/2017	82
58	16	21.188	1 in 61.9	21	4/3/2018	55
59	16	21.188	1 in 61.9	28	8/21/2018	35
60	15	19.864	1 in 66.0	14	5/24/2016	152	Overdue
61	15	19.864	1 in 66.0	18	1/29/2019	12
62	14	18.539	1 in 70.7	18	7/17/2018	40
63	14	18.539	1 in 70.7	18	3/22/2016	161	Overdue
64	13	17.215	1 in 76.2	19	2/19/2019	9
65	13	17.215	1 in 76.2	15	5/22/2018	48
66	12	15.891	1 in 82.5	22	2/6/2018	63
67	12	15.891	1 in 82.5	22	3/29/2016	160
68	11	14.567	1 in 90.0	12	2/13/2018	62
69	11	14.567	1 in 90.0	11	12/18/2018	18
70	10	13.242	1 in 99.0	11	4/4/2017	107
71	10	13.242	1 in 99.0	7	1/20/2015	222	Overdue
72	9	11.918	1 in 110	11	4/27/2010	469	Overdue
73	9	11.918	1 in 110	13	10/27/2015	182
74	8	10.594	1 in 124	4	5/2/2017	103
75	8	10.594	1 in 124	15	9/19/2017	83
76	7	9.270	1 in 141	10	7/3/2018	42
77	7	9.270	1 in 141	6	9/1/2009	501	Overdue
78	6	7.945	1 in 165	11	3/5/2019	7
79	6	7.945	1 in 165	12	10/3/2017	81
80	5	6.621	1 in 198	10	7/18/2017	92
81	5	6.621	1 in 198	9	4/9/2019	2
82	4	5.297	1 in 248	2	8/12/1997	1,130	Overdue
83	4	5.297	1 in 248	3	6/21/2011	409
84	3	3.973	1 in 330	5	3/1/2011	425
85	3	3.973	1 in 330	6	7/7/2015	198
86	2	2.648	1 in 495	5	1/22/2019	13
87	2	2.648	1 in 495	6	12/31/2013	277
88	1	1.324	1 in 990	2	3/29/2011	421
89	1	1.324	1 in 990	1	10/10/2000	965

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