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 369 Draws
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 0.001 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 0.002 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 0.004 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 0.006 1 in 61,909 0 Never Never
53 860 0.007 1 in 52,767 0 Never Never
54 1,009 0.008 1 in 44,975 0 Never Never
55 1,175 0.010 1 in 38,621 0 Never Never
56 1,367 0.011 1 in 33,197 0 Never Never
57 1,579 0.013 1 in 28,739 0 Never Never
58 1,824 0.015 1 in 24,879 0 Never Never
59 2,093 0.017 1 in 21,682 0 Never Never
60 2,400 0.020 1 in 18,908 0 Never Never
61 2,738 0.022 1 in 16,574 0 Never Never
62 3,120 0.025 1 in 14,545 0 Never Never
63 3,539 0.029 1 in 12,823 0 Never Never
64 4,011 0.033 1 in 11,314 0 Never Never
65 4,526 0.037 1 in 10,026 0 Never Never
66 5,102 0.041 1 in 8,894 0 Never Never
67 5,730 0.047 1 in 7,920 0 Never Never
68 6,428 0.052 1 in 7,060 0 Never Never
69 7,186 0.058 1 in 6,315 0 Never Never
70 8,026 0.065 1 in 5,654 0 Never Never
71 8,934 0.073 1 in 5,079 0 Never Never
72 9,934 0.081 1 in 4,568 0 Never Never
73 11,014 0.090 1 in 4,120 0 Never Never
74 12,197 0.099 1 in 3,721 0 Never Never
75 13,470 0.110 1 in 3,369 0 Never Never
76 14,860 0.121 1 in 3,054 0 Never Never
77 16,350 0.133 1 in 2,776 0 Never Never
78 17,969 0.146 1 in 2,525 0 Never Never
79 19,701 0.160 1 in 2,303 0 Never Never
80 21,575 0.175 1 in 2,103 0 Never Never
81 23,573 0.192 1 in 1,925 0 Never Never
82 25,728 0.209 1 in 1,764 0 Never Never
83 28,018 0.228 1 in 1,620 1 2/3/2015 270
84 30,478 0.248 1 in 1,489 0 Never Never
85 33,086 0.269 1 in 1,372 0 Never Never
86 35,877 0.292 1 in 1,265 0 Never Never
87 38,827 0.316 1 in 1,169 0 Never Never
88 41,975 0.341 1 in 1,081 0 Never Never
89 45,292 0.368 1 in 1,002 0 Never Never
90 48,819 0.397 1 in 930 0 Never Never
91 52,527 0.427 1 in 864 1 12/1/2015 227
92 56,456 0.459 1 in 804 1 7/9/2013 352
93 60,575 0.493 1 in 749 0 Never Never
94 64,928 0.528 1 in 699 2 5/19/2015 255
95 69,478 0.565 1 in 653 2 11/14/2017 125
96 74,271 0.604 1 in 611 1 8/26/2014 293
97 79,269 0.645 1 in 572 0 Never Never
98 84,518 0.687 1 in 537 1 2/20/2018 111
99 89,976 0.732 1 in 504 1 8/13/2019 34
100 95,693 0.778 1 in 474 1 6/4/2019 44
101 101,621 0.826 1 in 447 0 Never Never
102 107,811 0.877 1 in 421 0 Never Never
103 114,214 0.929 1 in 397 0 Never Never
104 120,880 0.983 1 in 375 1 6/9/2015 252
105 127,756 1.039 1 in 355 0 Never Never
106 134,895 1.097 1 in 336 1 2/24/2015 267
107 142,238 1.157 1 in 319 1 7/3/2018 92
108 149,839 1.218 1 in 303 3 10/30/2018 75
109 157,637 1.282 1 in 288 1 8/11/2015 243
110 165,685 1.347 1 in 274 0 Never Never
111 173,918 1.414 1 in 261 1 2/12/2019 60
112 182,392 1.483 1 in 249 2 8/21/2018 85
113 191,035 1.553 1 in 238 2 3/17/2020 3
114 199,904 1.626 1 in 227 1 10/7/2014 287
115 208,926 1.699 1 in 217 3 4/23/2019 50
116 218,156 1.774 1 in 208 5 2/5/2019 61
117 227,517 1.850 1 in 199 1 11/28/2017 123
118 237,067 1.928 1 in 191 2 12/31/2019 14
119 246,723 2.006 1 in 184 1 1/3/2017 170
120 256,543 2.086 1 in 177 3 11/15/2016 177
121 266,443 2.167 1 in 170 1 10/27/2015 232
122 276,480 2.248 1 in 164 1 7/31/2018 88
123 286,566 2.330 1 in 158 2 11/26/2019 19
124 296,761 2.413 1 in 153 2 12/31/2013 327 Overdue
125 306,971 2.496 1 in 148 2 5/1/2018 101
126 317,257 2.580 1 in 143 3 2/4/2020 9
127 327,524 2.663 1 in 139 1 11/8/2016 178
128 337,832 2.747 1 in 134 4 9/29/2015 236
129 348,083 2.830 1 in 130 3 12/12/2017 121
130 358,340 2.914 1 in 127 0 Never Never Overdue
131 368,500 2.996 1 in 123 2 5/27/2014 306 Overdue
132 378,627 3.079 1 in 120 2 4/26/2016 206
133 388,618 3.160 1 in 117 3 5/7/2019 48
134 398,536 3.241 1 in 114 2 10/18/2016 181
135 408,276 3.320 1 in 111 3 6/18/2019 42
136 417,905 3.398 1 in 109 3 1/16/2018 116
137 427,313 3.475 1 in 106 5 4/30/2019 49
138 436,569 3.550 1 in 104 2 11/6/2018 74
139 445,564 3.623 1 in 102 5 7/9/2019 39
140 454,367 3.695 1 in 99.9 3 10/11/2016 182
141 462,867 3.764 1 in 98.0 2 3/24/2020 2
142 471,138 3.831 1 in 96.3 3 6/6/2017 148
143 479,066 3.895 1 in 94.7 7 7/23/2019 37
144 486,727 3.958 1 in 93.2 5 5/15/2018 99
145 494,009 4.017 1 in 91.9 3 3/26/2019 54
146 500,989 4.074 1 in 90.6 7 4/16/2019 51
147 507,555 4.127 1 in 89.4 4 11/20/2018 72
148 513,788 4.178 1 in 88.3 5 7/10/2018 91
149 519,575 4.225 1 in 87.3 5 2/11/2020 8
150 525,000 4.269 1 in 86.4 3 8/20/2019 33
151 529,952 4.309 1 in 85.6 5 7/30/2019 36
152 534,517 4.346 1 in 84.9 6 4/4/2017 157
153 538,585 4.379 1 in 84.3 4 12/25/2018 67
154 542,246 4.409 1 in 83.7 1 4/10/2018 104
155 545,390 4.435 1 in 83.2 3 9/10/2019 30
156 548,110 4.457 1 in 82.8 2 10/28/2014 284 Overdue
157 550,299 4.475 1 in 82.5 6 12/24/2019 15
158 552,052 4.489 1 in 82.2 5 3/1/2016 214 Overdue
159 553,264 4.499 1 in 82.0 5 10/15/2019 25
160 554,033 4.505 1 in 81.9 3 9/26/2017 132
161 554,256 4.507 1 in 81.9 6 10/8/2019 26
162 554,033 4.505 1 in 81.9 3 8/1/2017 140
163 553,264 4.499 1 in 82.0 5 10/1/2019 27
164 552,052 4.489 1 in 82.2 4 3/31/2020 1
165 550,299 4.475 1 in 82.5 6 1/14/2020 12
166 548,110 4.457 1 in 82.8 5 1/28/2020 10
167 545,390 4.435 1 in 83.2 9 11/5/2019 22
168 542,246 4.409 1 in 83.7 8 2/18/2020 7
169 538,585 4.379 1 in 84.3 4 3/12/2019 56
170 534,517 4.346 1 in 84.9 3 11/13/2018 73
171 529,952 4.309 1 in 85.6 6 4/2/2019 53
172 525,000 4.269 1 in 86.4 6 12/4/2018 70
173 519,575 4.225 1 in 87.3 6 12/10/2019 17
174 513,788 4.178 1 in 88.3 4 11/19/2019 20
175 507,555 4.127 1 in 89.4 6 1/7/2020 13
176 500,989 4.074 1 in 90.6 3 1/21/2020 11
177 494,009 4.017 1 in 91.9 5 8/27/2019 32
178 486,727 3.958 1 in 93.2 3 8/29/2017 136
179 479,066 3.895 1 in 94.7 3 6/11/2019 43
180 471,138 3.831 1 in 96.3 4 3/3/2020 5
181 462,867 3.764 1 in 98.0 5 3/5/2019 57
182 454,367 3.695 1 in 99.9 2 12/2/2014 279 Overdue
183 445,564 3.623 1 in 102 4 1/8/2019 65
184 436,569 3.550 1 in 104 5 10/2/2018 79
185 427,313 3.475 1 in 106 4 8/6/2019 35
186 417,905 3.398 1 in 109 2 1/1/2019 66
187 408,276 3.320 1 in 111 1 9/12/2017 134
188 398,536 3.241 1 in 114 2 12/17/2019 16
189 388,618 3.160 1 in 117 1 12/27/2016 171
190 378,627 3.079 1 in 120 5 10/22/2019 24
191 368,500 2.996 1 in 123 3 9/4/2018 83
192 358,340 2.914 1 in 127 0 Never Never Overdue
193 348,083 2.830 1 in 130 2 2/16/2016 216
194 337,832 2.747 1 in 134 1 11/3/2015 231
195 327,524 2.663 1 in 139 2 8/8/2017 139
196 317,257 2.580 1 in 143 7 10/24/2017 128
197 306,971 2.496 1 in 148 3 6/5/2018 96
198 296,761 2.413 1 in 153 6 9/24/2019 28
199 286,566 2.330 1 in 158 3 1/15/2019 64
200 276,480 2.248 1 in 164 3 6/25/2019 41
201 266,443 2.167 1 in 170 3 7/4/2017 144
202 256,543 2.086 1 in 177 1 11/29/2016 175
203 246,723 2.006 1 in 184 3 10/9/2018 78
204 237,067 1.928 1 in 191 1 7/2/2013 353
205 227,517 1.850 1 in 199 1 2/25/2020 6
206 218,156 1.774 1 in 208 1 1/5/2016 222
207 208,926 1.699 1 in 217 1 9/16/2014 290
208 199,904 1.626 1 in 227 2 7/11/2017 143
209 191,035 1.553 1 in 238 1 11/22/2016 176
210 182,392 1.483 1 in 249 0 Never Never
211 173,918 1.414 1 in 261 1 10/8/2013 339
212 165,685 1.347 1 in 274 0 Never Never
213 157,637 1.282 1 in 288 0 Never Never
214 149,839 1.218 1 in 303 0 Never Never
215 142,238 1.157 1 in 319 1 9/18/2018 81
216 134,895 1.097 1 in 336 2 4/28/2015 258
217 127,756 1.039 1 in 355 0 Never Never
218 120,880 0.983 1 in 375 1 11/12/2019 21
219 114,214 0.929 1 in 397 4 12/3/2019 18
220 107,811 0.877 1 in 421 2 10/17/2017 129
221 101,621 0.826 1 in 447 0 Never Never
222 95,693 0.778 1 in 474 1 12/13/2016 173
223 89,976 0.732 1 in 504 0 Never Never
224 84,518 0.687 1 in 537 0 Never Never
225 79,269 0.645 1 in 572 1 5/8/2018 100
226 74,271 0.604 1 in 611 0 Never Never
227 69,478 0.565 1 in 653 1 4/18/2017 155
228 64,928 0.528 1 in 699 0 Never Never
229 60,575 0.493 1 in 749 1 9/22/2015 237
230 56,456 0.459 1 in 804 0 Never Never
231 52,527 0.427 1 in 864 1 4/12/2016 208
232 48,819 0.397 1 in 930 3 4/25/2017 154
233 45,292 0.368 1 in 1,002 0 Never Never
234 41,975 0.341 1 in 1,081 0 Never Never
235 38,827 0.316 1 in 1,169 0 Never Never
236 35,877 0.292 1 in 1,265 0 Never Never
237 33,086 0.269 1 in 1,372 1 10/13/2015 234
238 30,478 0.248 1 in 1,489 1 1/13/2015 273
239 28,018 0.228 1 in 1,620 1 2/10/2015 269
240 25,728 0.209 1 in 1,764 0 Never Never
241 23,573 0.192 1 in 1,925 1 3/4/2014 318
242 21,575 0.175 1 in 2,103 0 Never Never
243 19,701 0.160 1 in 2,303 0 Never Never
244 17,969 0.146 1 in 2,525 0 Never Never
245 16,350 0.133 1 in 2,776 0 Never Never
246 14,860 0.121 1 in 3,054 0 Never Never
247 13,470 0.110 1 in 3,369 0 Never Never
248 12,197 0.099 1 in 3,721 0 Never Never
249 11,014 0.090 1 in 4,120 0 Never Never
250 9,934 0.081 1 in 4,568 0 Never Never
251 8,934 0.073 1 in 5,079 0 Never Never
252 8,026 0.065 1 in 5,654 0 Never Never
253 7,186 0.058 1 in 6,315 0 Never Never
254 6,428 0.052 1 in 7,060 0 Never Never
255 5,730 0.047 1 in 7,920 0 Never Never
256 5,102 0.041 1 in 8,894 0 Never Never
257 4,526 0.037 1 in 10,026 0 Never Never
258 4,011 0.033 1 in 11,314 0 Never Never
259 3,539 0.029 1 in 12,823 0 Never Never
260 3,120 0.025 1 in 14,545 0 Never Never
261 2,738 0.022 1 in 16,574 0 Never Never
262 2,400 0.020 1 in 18,908 0 Never Never
263 2,093 0.017 1 in 21,682 0 Never Never
264 1,824 0.015 1 in 24,879 0 Never Never
265 1,579 0.013 1 in 28,739 0 Never Never
266 1,367 0.011 1 in 33,197 0 Never Never
267 1,175 0.010 1 in 38,621 0 Never Never
268 1,009 0.008 1 in 44,975 0 Never Never
269 860 0.007 1 in 52,767 0 Never Never
270 733 0.006 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 0.004 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 0.002 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 0.001 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 1,361 Draws
Count Frequency Count Last Drawn Draws Ago
3 1 1.375 1 in 990 1 12/15/2015 225
4 1 1.375 1 in 990 0 Never Never
5 2 2.749 1 in 495 3 11/17/2015 229
6 2 2.749 1 in 495 2 11/20/2018 72
7 3 4.124 1 in 330 3 12/12/2017 121
8 3 4.124 1 in 330 3 11/27/2018 71
9 4 5.499 1 in 248 9 1/28/2020 10
10 4 5.499 1 in 248 3 12/20/2016 172
11 5 6.874 1 in 198 6 11/28/2017 123
12 5 6.874 1 in 198 7 5/16/2017 151
13 6 8.248 1 in 165 5 2/11/2020 8
14 6 8.248 1 in 165 7 6/25/2019 41
15 7 9.623 1 in 141 8 5/26/2015 254
16 7 9.623 1 in 141 6 3/8/2016 213
17 8 10.998 1 in 124 13 11/22/2016 176
18 8 10.998 1 in 124 14 4/23/2019 50
19 9 12.373 1 in 110 7 3/17/2020 3
20 9 12.373 1 in 110 7 10/28/2014 284 Overdue
21 10 13.747 1 in 99.0 15 2/4/2020 9
22 10 13.747 1 in 99.0 20 5/8/2018 100
23 11 15.122 1 in 90.0 14 4/26/2016 206 Overdue
24 11 15.122 1 in 90.0 13 1/1/2019 66
25 12 16.497 1 in 82.5 18 2/9/2016 217 Overdue
26 12 16.497 1 in 82.5 8 10/8/2019 26
27 13 17.872 1 in 76.2 15 11/7/2017 126
28 13 17.872 1 in 76.2 22 8/14/2018 86
29 14 19.246 1 in 70.7 25 3/3/2020 5
30 14 19.246 1 in 70.7 16 1/7/2020 13
31 15 20.621 1 in 66.0 23 8/25/2015 241 Overdue
32 15 20.621 1 in 66.0 19 6/26/2018 93
33 16 21.996 1 in 61.9 32 3/24/2020 2
34 16 21.996 1 in 61.9 20 2/26/2019 58
35 17 23.371 1 in 58.2 27 12/10/2019 17
36 17 23.371 1 in 58.2 28 12/3/2019 18
37 18 24.745 1 in 55.0 22 12/19/2017 120 Overdue
38 18 24.745 1 in 55.0 30 3/10/2020 4
39 19 26.120 1 in 52.1 19 1/14/2020 12
40 19 26.120 1 in 52.1 28 9/24/2019 28
41 20 27.495 1 in 49.5 46 11/13/2018 73
42 20 27.495 1 in 49.5 32 4/10/2018 104 Overdue
43 21 28.870 1 in 47.1 24 10/1/2019 27
44 21 28.870 1 in 47.1 29 11/12/2019 21
45 22 30.244 1 in 45.0 29 2/5/2019 61
46 22 30.244 1 in 45.0 29 9/18/2018 81
47 22 30.244 1 in 45.0 27 4/2/2019 53
48 21 28.870 1 in 47.1 29 9/4/2018 83
49 21 28.870 1 in 47.1 38 10/29/2019 23
50 20 27.495 1 in 49.5 14 5/14/2019 47
51 20 27.495 1 in 49.5 23 8/6/2019 35
52 19 26.120 1 in 52.1 20 12/11/2018 69
53 19 26.120 1 in 52.1 23 10/9/2018 78
54 18 24.745 1 in 55.0 30 10/16/2018 77
55 18 24.745 1 in 55.0 20 6/4/2019 44
56 17 23.371 1 in 58.2 24 12/26/2017 119 Overdue
57 17 23.371 1 in 58.2 24 9/17/2019 29
58 16 21.996 1 in 61.9 23 11/5/2019 22
59 16 21.996 1 in 61.9 29 7/9/2019 39
60 15 20.621 1 in 66.0 15 2/18/2020 7
61 15 20.621 1 in 66.0 18 1/29/2019 62
62 14 19.246 1 in 70.7 18 7/17/2018 90
63 14 19.246 1 in 70.7 19 1/21/2020 11
64 13 17.872 1 in 76.2 19 2/19/2019 59
65 13 17.872 1 in 76.2 15 5/22/2018 98
66 12 16.497 1 in 82.5 23 7/23/2019 37
67 12 16.497 1 in 82.5 22 3/29/2016 210 Overdue
68 11 15.122 1 in 90.0 12 2/13/2018 112
69 11 15.122 1 in 90.0 12 6/18/2019 42
70 10 13.747 1 in 99.0 11 4/4/2017 157
71 10 13.747 1 in 99.0 8 8/13/2019 34
72 9 12.373 1 in 110 12 5/7/2019 48
73 9 12.373 1 in 110 13 10/27/2015 232 Overdue
74 8 10.998 1 in 124 4 5/2/2017 153
75 8 10.998 1 in 124 15 9/19/2017 133
76 7 9.623 1 in 141 11 3/31/2020 1
77 7 9.623 1 in 141 6 9/1/2009 551 Overdue
78 6 8.248 1 in 165 12 7/2/2019 40
79 6 8.248 1 in 165 12 10/3/2017 131
80 5 6.874 1 in 198 10 7/18/2017 142
81 5 6.874 1 in 198 9 4/9/2019 52
82 4 5.499 1 in 248 4 12/31/2019 14
83 4 5.499 1 in 248 3 6/21/2011 459
84 3 4.124 1 in 330 5 3/1/2011 475
85 3 4.124 1 in 330 6 7/7/2015 248
86 2 2.749 1 in 495 7 12/24/2019 15
87 2 2.749 1 in 495 6 12/31/2013 327
88 1 1.375 1 in 990 2 3/29/2011 471
89 1 1.375 1 in 990 1 10/10/2000 1,015

Page Last Updated: Tuesday, 31 March 2020 11:37 AM