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 383 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 0.003 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 0.009 1 in 44,975 0 Never Never
55 1,175 0.010 1 in 38,621 0 Never Never
56 1,367 0.012 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 0.018 1 in 21,682 0 Never Never
60 2,400 0.020 1 in 18,908 0 Never Never
61 2,738 0.023 1 in 16,574 0 Never Never
62 3,120 0.026 1 in 14,545 0 Never Never
63 3,539 0.030 1 in 12,823 0 Never Never
64 4,011 0.034 1 in 11,314 0 Never Never
65 4,526 0.038 1 in 10,026 0 Never Never
66 5,102 0.043 1 in 8,894 0 Never Never
67 5,730 0.048 1 in 7,920 0 Never Never
68 6,428 0.054 1 in 7,060 0 Never Never
69 7,186 0.061 1 in 6,315 0 Never Never
70 8,026 0.068 1 in 5,654 0 Never Never
71 8,934 0.075 1 in 5,079 0 Never Never
72 9,934 0.084 1 in 4,568 0 Never Never
73 11,014 0.093 1 in 4,120 0 Never Never
74 12,197 0.103 1 in 3,721 0 Never Never
75 13,470 0.114 1 in 3,369 0 Never Never
76 14,860 0.125 1 in 3,054 0 Never Never
77 16,350 0.138 1 in 2,776 0 Never Never
78 17,969 0.152 1 in 2,525 0 Never Never
79 19,701 0.166 1 in 2,303 0 Never Never
80 21,575 0.182 1 in 2,103 0 Never Never
81 23,573 0.199 1 in 1,925 0 Never Never
82 25,728 0.217 1 in 1,764 1 7/7/2020 1
83 28,018 0.236 1 in 1,620 1 2/3/2015 284
84 30,478 0.257 1 in 1,489 0 Never Never
85 33,086 0.279 1 in 1,372 0 Never Never
86 35,877 0.303 1 in 1,265 0 Never Never
87 38,827 0.328 1 in 1,169 0 Never Never
88 41,975 0.354 1 in 1,081 0 Never Never
89 45,292 0.382 1 in 1,002 0 Never Never
90 48,819 0.412 1 in 930 0 Never Never
91 52,527 0.443 1 in 864 1 12/1/2015 241
92 56,456 0.476 1 in 804 1 7/9/2013 366
93 60,575 0.511 1 in 749 0 Never Never
94 64,928 0.548 1 in 699 2 5/19/2015 269
95 69,478 0.586 1 in 653 2 11/14/2017 139
96 74,271 0.627 1 in 611 1 8/26/2014 307
97 79,269 0.669 1 in 572 0 Never Never
98 84,518 0.713 1 in 537 1 2/20/2018 125
99 89,976 0.759 1 in 504 1 8/13/2019 48
100 95,693 0.808 1 in 474 1 6/4/2019 58
101 101,621 0.858 1 in 447 0 Never Never
102 107,811 0.910 1 in 421 0 Never Never
103 114,214 0.964 1 in 397 0 Never Never
104 120,880 1.020 1 in 375 2 6/23/2020 3
105 127,756 1.078 1 in 355 0 Never Never
106 134,895 1.139 1 in 336 1 2/24/2015 281
107 142,238 1.200 1 in 319 1 7/3/2018 106
108 149,839 1.265 1 in 303 3 10/30/2018 89
109 157,637 1.330 1 in 288 1 8/11/2015 257
110 165,685 1.398 1 in 274 0 Never Never
111 173,918 1.468 1 in 261 1 2/12/2019 74
112 182,392 1.539 1 in 249 2 8/21/2018 99
113 191,035 1.612 1 in 238 2 3/17/2020 17
114 199,904 1.687 1 in 227 1 10/7/2014 301
115 208,926 1.763 1 in 217 3 4/23/2019 64
116 218,156 1.841 1 in 208 5 2/5/2019 75
117 227,517 1.920 1 in 199 1 11/28/2017 137
118 237,067 2.001 1 in 191 2 12/31/2019 28
119 246,723 2.082 1 in 184 1 1/3/2017 184
120 256,543 2.165 1 in 177 3 11/15/2016 191
121 266,443 2.249 1 in 170 1 10/27/2015 246
122 276,480 2.333 1 in 164 1 7/31/2018 102
123 286,566 2.419 1 in 158 3 5/26/2020 7
124 296,761 2.505 1 in 153 3 6/16/2020 4
125 306,971 2.591 1 in 148 2 5/1/2018 115
126 317,257 2.678 1 in 143 3 2/4/2020 23
127 327,524 2.764 1 in 139 1 11/8/2016 192
128 337,832 2.851 1 in 134 4 9/29/2015 250
129 348,083 2.938 1 in 130 3 12/12/2017 135
130 358,340 3.024 1 in 127 0 Never Never Overdue
131 368,500 3.110 1 in 123 2 5/27/2014 320 Overdue
132 378,627 3.196 1 in 120 2 4/26/2016 220
133 388,618 3.280 1 in 117 3 5/7/2019 62
134 398,536 3.364 1 in 114 2 10/18/2016 195
135 408,276 3.446 1 in 111 3 6/18/2019 56
136 417,905 3.527 1 in 109 3 1/16/2018 130
137 427,313 3.606 1 in 106 7 5/12/2020 9
138 436,569 3.685 1 in 104 2 11/6/2018 88
139 445,564 3.761 1 in 102 5 7/9/2019 53
140 454,367 3.835 1 in 99.9 3 10/11/2016 196
141 462,867 3.907 1 in 98.0 2 3/24/2020 16
142 471,138 3.976 1 in 96.3 3 6/6/2017 162
143 479,066 4.043 1 in 94.7 7 7/23/2019 51
144 486,727 4.108 1 in 93.2 5 5/15/2018 113
145 494,009 4.169 1 in 91.9 3 3/26/2019 68
146 500,989 4.228 1 in 90.6 7 4/16/2019 65
147 507,555 4.284 1 in 89.4 4 11/20/2018 86
148 513,788 4.336 1 in 88.3 5 7/10/2018 105
149 519,575 4.385 1 in 87.3 6 5/5/2020 10
150 525,000 4.431 1 in 86.4 3 8/20/2019 47
151 529,952 4.473 1 in 85.6 6 6/2/2020 6
152 534,517 4.511 1 in 84.9 6 4/4/2017 171 Overdue
153 538,585 4.546 1 in 84.3 4 12/25/2018 81
154 542,246 4.577 1 in 83.7 1 4/10/2018 118
155 545,390 4.603 1 in 83.2 3 9/10/2019 44
156 548,110 4.626 1 in 82.8 2 10/28/2014 298 Overdue
157 550,299 4.644 1 in 82.5 6 12/24/2019 29
158 552,052 4.659 1 in 82.2 5 3/1/2016 228 Overdue
159 553,264 4.669 1 in 82.0 5 10/15/2019 39
160 554,033 4.676 1 in 81.9 3 9/26/2017 146
161 554,256 4.678 1 in 81.9 6 10/8/2019 40
162 554,033 4.676 1 in 81.9 3 8/1/2017 154
163 553,264 4.669 1 in 82.0 5 10/1/2019 41
164 552,052 4.659 1 in 82.2 5 4/21/2020 12
165 550,299 4.644 1 in 82.5 6 1/14/2020 26
166 548,110 4.626 1 in 82.8 5 1/28/2020 24
167 545,390 4.603 1 in 83.2 9 11/5/2019 36
168 542,246 4.577 1 in 83.7 10 5/19/2020 8
169 538,585 4.546 1 in 84.3 4 3/12/2019 70
170 534,517 4.511 1 in 84.9 3 11/13/2018 87
171 529,952 4.473 1 in 85.6 6 4/2/2019 67
172 525,000 4.431 1 in 86.4 6 12/4/2018 84
173 519,575 4.385 1 in 87.3 6 12/10/2019 31
174 513,788 4.336 1 in 88.3 4 11/19/2019 34
175 507,555 4.284 1 in 89.4 6 1/7/2020 27
176 500,989 4.228 1 in 90.6 3 1/21/2020 25
177 494,009 4.169 1 in 91.9 5 8/27/2019 46
178 486,727 4.108 1 in 93.2 3 8/29/2017 150
179 479,066 4.043 1 in 94.7 3 6/11/2019 57
180 471,138 3.976 1 in 96.3 5 6/9/2020 5
181 462,867 3.907 1 in 98.0 5 3/5/2019 71
182 454,367 3.835 1 in 99.9 2 12/2/2014 293 Overdue
183 445,564 3.761 1 in 102 4 1/8/2019 79
184 436,569 3.685 1 in 104 5 10/2/2018 93
185 427,313 3.606 1 in 106 4 8/6/2019 49
186 417,905 3.527 1 in 109 2 1/1/2019 80
187 408,276 3.446 1 in 111 1 9/12/2017 148
188 398,536 3.364 1 in 114 2 12/17/2019 30
189 388,618 3.280 1 in 117 1 12/27/2016 185
190 378,627 3.196 1 in 120 5 10/22/2019 38
191 368,500 3.110 1 in 123 3 9/4/2018 97
192 358,340 3.024 1 in 127 0 Never Never Overdue
193 348,083 2.938 1 in 130 3 6/30/2020 2
194 337,832 2.851 1 in 134 1 11/3/2015 245
195 327,524 2.764 1 in 139 2 8/8/2017 153
196 317,257 2.678 1 in 143 7 10/24/2017 142
197 306,971 2.591 1 in 148 3 6/5/2018 110
198 296,761 2.505 1 in 153 6 9/24/2019 42
199 286,566 2.419 1 in 158 3 1/15/2019 78
200 276,480 2.333 1 in 164 3 6/25/2019 55
201 266,443 2.249 1 in 170 3 7/4/2017 158
202 256,543 2.165 1 in 177 1 11/29/2016 189
203 246,723 2.082 1 in 184 3 10/9/2018 92
204 237,067 2.001 1 in 191 1 7/2/2013 367
205 227,517 1.920 1 in 199 1 2/25/2020 20
206 218,156 1.841 1 in 208 1 1/5/2016 236
207 208,926 1.763 1 in 217 1 9/16/2014 304
208 199,904 1.687 1 in 227 2 7/11/2017 157
209 191,035 1.612 1 in 238 1 11/22/2016 190
210 182,392 1.539 1 in 249 1 4/7/2020 14
211 173,918 1.468 1 in 261 1 10/8/2013 353
212 165,685 1.398 1 in 274 0 Never Never
213 157,637 1.330 1 in 288 0 Never Never
214 149,839 1.265 1 in 303 0 Never Never
215 142,238 1.200 1 in 319 1 9/18/2018 95
216 134,895 1.139 1 in 336 2 4/28/2015 272
217 127,756 1.078 1 in 355 0 Never Never
218 120,880 1.020 1 in 375 1 11/12/2019 35
219 114,214 0.964 1 in 397 4 12/3/2019 32
220 107,811 0.910 1 in 421 2 10/17/2017 143
221 101,621 0.858 1 in 447 0 Never Never
222 95,693 0.808 1 in 474 1 12/13/2016 187
223 89,976 0.759 1 in 504 0 Never Never
224 84,518 0.713 1 in 537 0 Never Never
225 79,269 0.669 1 in 572 1 5/8/2018 114
226 74,271 0.627 1 in 611 0 Never Never
227 69,478 0.586 1 in 653 1 4/18/2017 169
228 64,928 0.548 1 in 699 0 Never Never
229 60,575 0.511 1 in 749 1 9/22/2015 251
230 56,456 0.476 1 in 804 0 Never Never
231 52,527 0.443 1 in 864 1 4/12/2016 222
232 48,819 0.412 1 in 930 3 4/25/2017 168
233 45,292 0.382 1 in 1,002 0 Never Never
234 41,975 0.354 1 in 1,081 0 Never Never
235 38,827 0.328 1 in 1,169 0 Never Never
236 35,877 0.303 1 in 1,265 0 Never Never
237 33,086 0.279 1 in 1,372 1 10/13/2015 248
238 30,478 0.257 1 in 1,489 1 1/13/2015 287
239 28,018 0.236 1 in 1,620 1 2/10/2015 283
240 25,728 0.217 1 in 1,764 0 Never Never
241 23,573 0.199 1 in 1,925 1 3/4/2014 332
242 21,575 0.182 1 in 2,103 0 Never Never
243 19,701 0.166 1 in 2,303 0 Never Never
244 17,969 0.152 1 in 2,525 0 Never Never
245 16,350 0.138 1 in 2,776 0 Never Never
246 14,860 0.125 1 in 3,054 0 Never Never
247 13,470 0.114 1 in 3,369 0 Never Never
248 12,197 0.103 1 in 3,721 0 Never Never
249 11,014 0.093 1 in 4,120 0 Never Never
250 9,934 0.084 1 in 4,568 0 Never Never
251 8,934 0.075 1 in 5,079 0 Never Never
252 8,026 0.068 1 in 5,654 0 Never Never
253 7,186 0.061 1 in 6,315 0 Never Never
254 6,428 0.054 1 in 7,060 0 Never Never
255 5,730 0.048 1 in 7,920 0 Never Never
256 5,102 0.043 1 in 8,894 0 Never Never
257 4,526 0.038 1 in 10,026 0 Never Never
258 4,011 0.034 1 in 11,314 0 Never Never
259 3,539 0.030 1 in 12,823 0 Never Never
260 3,120 0.026 1 in 14,545 0 Never Never
261 2,738 0.023 1 in 16,574 0 Never Never
262 2,400 0.020 1 in 18,908 0 Never Never
263 2,093 0.018 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 0.012 1 in 33,197 0 Never Never
267 1,175 0.010 1 in 38,621 0 Never Never
268 1,009 0.009 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 0.003 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 1,375 Draws
Count Frequency Count Last Drawn Draws Ago
3 1 1.389 1 in 990 1 12/15/2015 239
4 1 1.389 1 in 990 0 Never Never
5 2 2.778 1 in 495 3 11/17/2015 243
6 2 2.778 1 in 495 2 11/20/2018 86
7 3 4.167 1 in 330 3 12/12/2017 135
8 3 4.167 1 in 330 3 11/27/2018 85
9 4 5.556 1 in 248 9 1/28/2020 24
10 4 5.556 1 in 248 3 12/20/2016 186
11 5 6.944 1 in 198 6 11/28/2017 137
12 5 6.944 1 in 198 7 5/16/2017 165
13 6 8.333 1 in 165 5 2/11/2020 22
14 6 8.333 1 in 165 7 6/25/2019 55
15 7 9.722 1 in 141 8 5/26/2015 268
16 7 9.722 1 in 141 6 3/8/2016 227
17 8 11.111 1 in 124 13 11/22/2016 190
18 8 11.111 1 in 124 14 4/23/2019 64
19 9 12.500 1 in 110 7 3/17/2020 17
20 9 12.500 1 in 110 7 10/28/2014 298 Overdue
21 10 13.889 1 in 99.0 15 2/4/2020 23
22 10 13.889 1 in 99.0 20 5/8/2018 114
23 11 15.278 1 in 90.0 14 4/26/2016 220 Overdue
24 11 15.278 1 in 90.0 13 1/1/2019 80
25 12 16.667 1 in 82.5 18 2/9/2016 231 Overdue
26 12 16.667 1 in 82.5 8 10/8/2019 40
27 13 18.056 1 in 76.2 15 11/7/2017 140
28 13 18.056 1 in 76.2 22 8/14/2018 100
29 14 19.444 1 in 70.7 26 4/21/2020 12
30 14 19.444 1 in 70.7 16 1/7/2020 27
31 15 20.833 1 in 66.0 23 8/25/2015 255 Overdue
32 15 20.833 1 in 66.0 19 6/26/2018 107
33 16 22.222 1 in 61.9 32 3/24/2020 16
34 16 22.222 1 in 61.9 20 2/26/2019 72
35 17 23.611 1 in 58.2 27 12/10/2019 31
36 17 23.611 1 in 58.2 28 12/3/2019 32
37 18 25.000 1 in 55.0 22 12/19/2017 134 Overdue
38 18 25.000 1 in 55.0 31 4/7/2020 14
39 19 26.389 1 in 52.1 20 6/9/2020 5
40 19 26.389 1 in 52.1 28 9/24/2019 42
41 20 27.778 1 in 49.5 46 11/13/2018 87
42 20 27.778 1 in 49.5 32 4/10/2018 118 Overdue
43 21 29.167 1 in 47.1 24 10/1/2019 41
44 21 29.167 1 in 47.1 29 11/12/2019 35
45 22 30.556 1 in 45.0 29 2/5/2019 75
46 22 30.556 1 in 45.0 29 9/18/2018 95 Overdue
47 22 30.556 1 in 45.0 27 4/2/2019 67
48 21 29.167 1 in 47.1 30 5/5/2020 10
49 21 29.167 1 in 47.1 38 10/29/2019 37
50 20 27.778 1 in 49.5 14 5/14/2019 61
51 20 27.778 1 in 49.5 23 8/6/2019 49
52 19 26.389 1 in 52.1 21 5/12/2020 9
53 19 26.389 1 in 52.1 23 10/9/2018 92
54 18 25.000 1 in 55.0 31 7/7/2020 1
55 18 25.000 1 in 55.0 21 6/30/2020 2
56 17 23.611 1 in 58.2 24 12/26/2017 133 Overdue
57 17 23.611 1 in 58.2 25 6/16/2020 4
58 16 22.222 1 in 61.9 23 11/5/2019 36
59 16 22.222 1 in 61.9 30 4/14/2020 13
60 15 20.833 1 in 66.0 15 2/18/2020 21
61 15 20.833 1 in 66.0 18 1/29/2019 76
62 14 19.444 1 in 70.7 18 7/17/2018 104
63 14 19.444 1 in 70.7 19 1/21/2020 25
64 13 18.056 1 in 76.2 19 2/19/2019 73
65 13 18.056 1 in 76.2 15 5/22/2018 112
66 12 16.667 1 in 82.5 23 7/23/2019 51
67 12 16.667 1 in 82.5 23 5/26/2020 7
68 11 15.278 1 in 90.0 12 2/13/2018 126
69 11 15.278 1 in 90.0 12 6/18/2019 56
70 10 13.889 1 in 99.0 11 4/4/2017 171
71 10 13.889 1 in 99.0 8 8/13/2019 48
72 9 12.500 1 in 110 12 5/7/2019 62
73 9 12.500 1 in 110 14 6/23/2020 3
74 8 11.111 1 in 124 5 5/19/2020 8
75 8 11.111 1 in 124 15 9/19/2017 147
76 7 9.722 1 in 141 11 3/31/2020 15
77 7 9.722 1 in 141 6 9/1/2009 565 Overdue
78 6 8.333 1 in 165 12 7/2/2019 54
79 6 8.333 1 in 165 12 10/3/2017 145
80 5 6.944 1 in 198 11 4/28/2020 11
81 5 6.944 1 in 198 9 4/9/2019 66
82 4 5.556 1 in 248 5 6/2/2020 6
83 4 5.556 1 in 248 3 6/21/2011 473
84 3 4.167 1 in 330 5 3/1/2011 489
85 3 4.167 1 in 330 6 7/7/2015 262
86 2 2.778 1 in 495 7 12/24/2019 29
87 2 2.778 1 in 495 6 12/31/2013 341
88 1 1.389 1 in 990 2 3/29/2011 485
89 1 1.389 1 in 990 1 10/10/2000 1,029

Page Last Updated: Tuesday, 7 July 2020 11:41 AM

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