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 404 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 0.005 1 in 86,934 0 Never Never
51 618 0.006 1 in 73,430 0 Never Never
52 733 0.007 1 in 61,909 0 Never Never
53 860 0.008 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 0.014 1 in 28,739 0 Never Never
58 1,824 0.016 1 in 24,879 0 Never Never
59 2,093 0.019 1 in 21,682 0 Never Never
60 2,400 0.021 1 in 18,908 0 Never Never
61 2,738 0.024 1 in 16,574 0 Never Never
62 3,120 0.028 1 in 14,545 0 Never Never
63 3,539 0.032 1 in 12,823 0 Never Never
64 4,011 0.036 1 in 11,314 0 Never Never
65 4,526 0.040 1 in 10,026 0 Never Never
66 5,102 0.045 1 in 8,894 0 Never Never
67 5,730 0.051 1 in 7,920 0 Never Never
68 6,428 0.057 1 in 7,060 0 Never Never
69 7,186 0.064 1 in 6,315 0 Never Never
70 8,026 0.071 1 in 5,654 0 Never Never
71 8,934 0.080 1 in 5,079 0 Never Never
72 9,934 0.088 1 in 4,568 0 Never Never
73 11,014 0.098 1 in 4,120 0 Never Never
74 12,197 0.109 1 in 3,721 0 Never Never
75 13,470 0.120 1 in 3,369 0 Never Never
76 14,860 0.132 1 in 3,054 0 Never Never
77 16,350 0.146 1 in 2,776 0 Never Never
78 17,969 0.160 1 in 2,525 0 Never Never
79 19,701 0.175 1 in 2,303 0 Never Never
80 21,575 0.192 1 in 2,103 0 Never Never
81 23,573 0.210 1 in 1,925 0 Never Never
82 25,728 0.229 1 in 1,764 1 7/7/2020 22
83 28,018 0.249 1 in 1,620 1 2/3/2015 305
84 30,478 0.271 1 in 1,489 0 Never Never
85 33,086 0.295 1 in 1,372 0 Never Never
86 35,877 0.319 1 in 1,265 0 Never Never
87 38,827 0.346 1 in 1,169 0 Never Never
88 41,975 0.374 1 in 1,081 0 Never Never
89 45,292 0.403 1 in 1,002 0 Never Never
90 48,819 0.435 1 in 930 0 Never Never
91 52,527 0.468 1 in 864 1 12/1/2015 262
92 56,456 0.503 1 in 804 1 7/9/2013 387
93 60,575 0.539 1 in 749 0 Never Never
94 64,928 0.578 1 in 699 2 5/19/2015 290
95 69,478 0.619 1 in 653 2 11/14/2017 160
96 74,271 0.661 1 in 611 1 8/26/2014 328
97 79,269 0.706 1 in 572 0 Never Never
98 84,518 0.752 1 in 537 1 2/20/2018 146
99 89,976 0.801 1 in 504 1 8/13/2019 69
100 95,693 0.852 1 in 474 1 6/4/2019 79
101 101,621 0.905 1 in 447 0 Never Never
102 107,811 0.960 1 in 421 0 Never Never
103 114,214 1.017 1 in 397 0 Never Never
104 120,880 1.076 1 in 375 2 6/23/2020 24
105 127,756 1.137 1 in 355 0 Never Never
106 134,895 1.201 1 in 336 1 2/24/2015 302
107 142,238 1.266 1 in 319 1 7/3/2018 127
108 149,839 1.334 1 in 303 3 10/30/2018 110
109 157,637 1.403 1 in 288 1 8/11/2015 278
110 165,685 1.475 1 in 274 0 Never Never
111 173,918 1.548 1 in 261 1 2/12/2019 95
112 182,392 1.624 1 in 249 2 8/21/2018 120
113 191,035 1.701 1 in 238 2 3/17/2020 38
114 199,904 1.780 1 in 227 1 10/7/2014 322
115 208,926 1.860 1 in 217 3 4/23/2019 85
116 218,156 1.942 1 in 208 5 2/5/2019 96
117 227,517 2.026 1 in 199 1 11/28/2017 158
118 237,067 2.111 1 in 191 2 12/31/2019 49
119 246,723 2.196 1 in 184 2 9/8/2020 13
120 256,543 2.284 1 in 177 3 11/15/2016 212
121 266,443 2.372 1 in 170 1 10/27/2015 267
122 276,480 2.461 1 in 164 1 7/31/2018 123
123 286,566 2.551 1 in 158 4 8/25/2020 15
124 296,761 2.642 1 in 153 3 6/16/2020 25
125 306,971 2.733 1 in 148 2 5/1/2018 136
126 317,257 2.824 1 in 143 3 2/4/2020 44
127 327,524 2.916 1 in 139 1 11/8/2016 213
128 337,832 3.008 1 in 134 4 9/29/2015 271 Overdue
129 348,083 3.099 1 in 130 3 12/12/2017 156
130 358,340 3.190 1 in 127 1 9/29/2020 10
131 368,500 3.281 1 in 123 2 5/27/2014 341 Overdue
132 378,627 3.371 1 in 120 2 4/26/2016 241 Overdue
133 388,618 3.460 1 in 117 4 12/1/2020 1
134 398,536 3.548 1 in 114 2 10/18/2016 216
135 408,276 3.635 1 in 111 3 6/18/2019 77
136 417,905 3.720 1 in 109 3 1/16/2018 151
137 427,313 3.804 1 in 106 7 5/12/2020 30
138 436,569 3.887 1 in 104 2 11/6/2018 109
139 445,564 3.967 1 in 102 5 7/9/2019 74
140 454,367 4.045 1 in 99.9 3 10/11/2016 217 Overdue
141 462,867 4.121 1 in 98.0 2 3/24/2020 37
142 471,138 4.194 1 in 96.3 3 6/6/2017 183
143 479,066 4.265 1 in 94.7 7 7/23/2019 72
144 486,727 4.333 1 in 93.2 5 5/15/2018 134
145 494,009 4.398 1 in 91.9 3 3/26/2019 89
146 500,989 4.460 1 in 90.6 8 11/10/2020 4
147 507,555 4.519 1 in 89.4 4 11/20/2018 107
148 513,788 4.574 1 in 88.3 5 7/10/2018 126
149 519,575 4.626 1 in 87.3 6 5/5/2020 31
150 525,000 4.674 1 in 86.4 3 8/20/2019 68
151 529,952 4.718 1 in 85.6 7 10/6/2020 9
152 534,517 4.759 1 in 84.9 6 4/4/2017 192 Overdue
153 538,585 4.795 1 in 84.3 4 12/25/2018 102
154 542,246 4.827 1 in 83.7 2 8/11/2020 17
155 545,390 4.855 1 in 83.2 3 9/10/2019 65
156 548,110 4.880 1 in 82.8 2 10/28/2014 319 Overdue
157 550,299 4.899 1 in 82.5 6 12/24/2019 50
158 552,052 4.915 1 in 82.2 6 11/24/2020 2
159 553,264 4.926 1 in 82.0 5 10/15/2019 60
160 554,033 4.932 1 in 81.9 3 9/26/2017 167 Overdue
161 554,256 4.934 1 in 81.9 7 9/22/2020 11
162 554,033 4.932 1 in 81.9 3 8/1/2017 175 Overdue
163 553,264 4.926 1 in 82.0 5 10/1/2019 62
164 552,052 4.915 1 in 82.2 5 4/21/2020 33
165 550,299 4.899 1 in 82.5 6 1/14/2020 47
166 548,110 4.880 1 in 82.8 5 1/28/2020 45
167 545,390 4.855 1 in 83.2 10 11/17/2020 3
168 542,246 4.827 1 in 83.7 10 5/19/2020 29
169 538,585 4.795 1 in 84.3 4 3/12/2019 91
170 534,517 4.759 1 in 84.9 3 11/13/2018 108
171 529,952 4.718 1 in 85.6 6 4/2/2019 88
172 525,000 4.674 1 in 86.4 8 10/13/2020 8
173 519,575 4.626 1 in 87.3 7 10/20/2020 7
174 513,788 4.574 1 in 88.3 4 11/19/2019 55
175 507,555 4.519 1 in 89.4 7 10/27/2020 6
176 500,989 4.460 1 in 90.6 3 1/21/2020 46
177 494,009 4.398 1 in 91.9 5 8/27/2019 67
178 486,727 4.333 1 in 93.2 3 8/29/2017 171
179 479,066 4.265 1 in 94.7 5 8/18/2020 16
180 471,138 4.194 1 in 96.3 5 6/9/2020 26
181 462,867 4.121 1 in 98.0 5 3/5/2019 92
182 454,367 4.045 1 in 99.9 3 9/15/2020 12
183 445,564 3.967 1 in 102 4 1/8/2019 100
184 436,569 3.887 1 in 104 5 10/2/2018 114
185 427,313 3.804 1 in 106 5 7/21/2020 20
186 417,905 3.720 1 in 109 2 1/1/2019 101
187 408,276 3.635 1 in 111 1 9/12/2017 169
188 398,536 3.548 1 in 114 2 12/17/2019 51
189 388,618 3.460 1 in 117 1 12/27/2016 206
190 378,627 3.371 1 in 120 6 9/1/2020 14
191 368,500 3.281 1 in 123 3 9/4/2018 118
192 358,340 3.190 1 in 127 0 Never Never Overdue
193 348,083 3.099 1 in 130 3 6/30/2020 23
194 337,832 3.008 1 in 134 1 11/3/2015 266
195 327,524 2.916 1 in 139 2 8/8/2017 174
196 317,257 2.824 1 in 143 7 10/24/2017 163
197 306,971 2.733 1 in 148 3 6/5/2018 131
198 296,761 2.642 1 in 153 6 9/24/2019 63
199 286,566 2.551 1 in 158 4 11/3/2020 5
200 276,480 2.461 1 in 164 3 6/25/2019 76
201 266,443 2.372 1 in 170 3 7/4/2017 179
202 256,543 2.284 1 in 177 1 11/29/2016 210
203 246,723 2.196 1 in 184 3 10/9/2018 113
204 237,067 2.111 1 in 191 1 7/2/2013 388 Overdue
205 227,517 2.026 1 in 199 1 2/25/2020 41
206 218,156 1.942 1 in 208 1 1/5/2016 257
207 208,926 1.860 1 in 217 1 9/16/2014 325
208 199,904 1.780 1 in 227 2 7/11/2017 178
209 191,035 1.701 1 in 238 1 11/22/2016 211
210 182,392 1.624 1 in 249 1 4/7/2020 35
211 173,918 1.548 1 in 261 1 10/8/2013 374
212 165,685 1.475 1 in 274 0 Never Never
213 157,637 1.403 1 in 288 0 Never Never
214 149,839 1.334 1 in 303 0 Never Never
215 142,238 1.266 1 in 319 1 9/18/2018 116
216 134,895 1.201 1 in 336 2 4/28/2015 293
217 127,756 1.137 1 in 355 0 Never Never
218 120,880 1.076 1 in 375 1 11/12/2019 56
219 114,214 1.017 1 in 397 4 12/3/2019 53
220 107,811 0.960 1 in 421 2 10/17/2017 164
221 101,621 0.905 1 in 447 0 Never Never
222 95,693 0.852 1 in 474 1 12/13/2016 208
223 89,976 0.801 1 in 504 0 Never Never
224 84,518 0.752 1 in 537 0 Never Never
225 79,269 0.706 1 in 572 1 5/8/2018 135
226 74,271 0.661 1 in 611 0 Never Never
227 69,478 0.619 1 in 653 1 4/18/2017 190
228 64,928 0.578 1 in 699 0 Never Never
229 60,575 0.539 1 in 749 1 9/22/2015 272
230 56,456 0.503 1 in 804 1 8/4/2020 18
231 52,527 0.468 1 in 864 1 4/12/2016 243
232 48,819 0.435 1 in 930 3 4/25/2017 189
233 45,292 0.403 1 in 1,002 0 Never Never
234 41,975 0.374 1 in 1,081 0 Never Never
235 38,827 0.346 1 in 1,169 0 Never Never
236 35,877 0.319 1 in 1,265 0 Never Never
237 33,086 0.295 1 in 1,372 1 10/13/2015 269
238 30,478 0.271 1 in 1,489 1 1/13/2015 308
239 28,018 0.249 1 in 1,620 1 2/10/2015 304
240 25,728 0.229 1 in 1,764 0 Never Never
241 23,573 0.210 1 in 1,925 1 3/4/2014 353
242 21,575 0.192 1 in 2,103 0 Never Never
243 19,701 0.175 1 in 2,303 0 Never Never
244 17,969 0.160 1 in 2,525 0 Never Never
245 16,350 0.146 1 in 2,776 0 Never Never
246 14,860 0.132 1 in 3,054 0 Never Never
247 13,470 0.120 1 in 3,369 0 Never Never
248 12,197 0.109 1 in 3,721 0 Never Never
249 11,014 0.098 1 in 4,120 0 Never Never
250 9,934 0.088 1 in 4,568 0 Never Never
251 8,934 0.080 1 in 5,079 0 Never Never
252 8,026 0.071 1 in 5,654 0 Never Never
253 7,186 0.064 1 in 6,315 0 Never Never
254 6,428 0.057 1 in 7,060 0 Never Never
255 5,730 0.051 1 in 7,920 0 Never Never
256 5,102 0.045 1 in 8,894 0 Never Never
257 4,526 0.040 1 in 10,026 0 Never Never
258 4,011 0.036 1 in 11,314 0 Never Never
259 3,539 0.032 1 in 12,823 0 Never Never
260 3,120 0.028 1 in 14,545 0 Never Never
261 2,738 0.024 1 in 16,574 0 Never Never
262 2,400 0.021 1 in 18,908 0 Never Never
263 2,093 0.019 1 in 21,682 0 Never Never
264 1,824 0.016 1 in 24,879 0 Never Never
265 1,579 0.014 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 0.008 1 in 52,767 0 Never Never
270 733 0.007 1 in 61,909 0 Never Never
271 618 0.006 1 in 73,430 0 Never Never
272 522 0.005 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 1,396 Draws
Count Frequency Count Last Drawn Draws Ago
3 1 1.410 1 in 990 1 12/15/2015 260
4 1 1.410 1 in 990 0 Never Never
5 2 2.820 1 in 495 4 9/29/2020 10
6 2 2.820 1 in 495 2 11/20/2018 107
7 3 4.230 1 in 330 4 8/4/2020 18
8 3 4.230 1 in 330 3 11/27/2018 106
9 4 5.640 1 in 248 10 10/13/2020 8
10 4 5.640 1 in 248 3 12/20/2016 207
11 5 7.051 1 in 198 6 11/28/2017 158
12 5 7.051 1 in 198 7 5/16/2017 186
13 6 8.461 1 in 165 5 2/11/2020 43
14 6 8.461 1 in 165 8 11/24/2020 2
15 7 9.871 1 in 141 8 5/26/2015 289 Overdue
16 7 9.871 1 in 141 6 3/8/2016 248
17 8 11.281 1 in 124 13 11/22/2016 211
18 8 11.281 1 in 124 14 4/23/2019 85
19 9 12.691 1 in 110 7 3/17/2020 38
20 9 12.691 1 in 110 8 8/18/2020 16
21 10 14.101 1 in 99.0 15 2/4/2020 44
22 10 14.101 1 in 99.0 20 5/8/2018 135
23 11 15.511 1 in 90.0 14 4/26/2016 241 Overdue
24 11 15.511 1 in 90.0 13 1/1/2019 101
25 12 16.921 1 in 82.5 19 7/28/2020 19
26 12 16.921 1 in 82.5 8 10/8/2019 61
27 13 18.331 1 in 76.2 15 11/7/2017 161 Overdue
28 13 18.331 1 in 76.2 23 9/15/2020 12
29 14 19.741 1 in 70.7 26 4/21/2020 33
30 14 19.741 1 in 70.7 16 1/7/2020 48
31 15 21.152 1 in 66.0 23 8/25/2015 276 Overdue
32 15 21.152 1 in 66.0 19 6/26/2018 128
33 16 22.562 1 in 61.9 32 3/24/2020 37
34 16 22.562 1 in 61.9 20 2/26/2019 93
35 17 23.972 1 in 58.2 27 12/10/2019 52
36 17 23.972 1 in 58.2 29 10/6/2020 9
37 18 25.382 1 in 55.0 22 12/19/2017 155 Overdue
38 18 25.382 1 in 55.0 31 4/7/2020 35
39 19 26.792 1 in 52.1 20 6/9/2020 26
40 19 26.792 1 in 52.1 28 9/24/2019 63
41 20 28.202 1 in 49.5 46 11/13/2018 108 Overdue
42 20 28.202 1 in 49.5 32 4/10/2018 139 Overdue
43 21 29.612 1 in 47.1 24 10/1/2019 62
44 21 29.612 1 in 47.1 30 9/22/2020 11
45 22 31.022 1 in 45.0 31 11/3/2020 5
46 22 31.022 1 in 45.0 29 9/18/2018 116 Overdue
47 22 31.022 1 in 45.0 28 8/25/2020 15
48 21 29.612 1 in 47.1 30 5/5/2020 31
49 21 29.612 1 in 47.1 38 10/29/2019 58
50 20 28.202 1 in 49.5 15 12/1/2020 1
51 20 28.202 1 in 49.5 23 8/6/2019 70
52 19 26.792 1 in 52.1 23 10/20/2020 7
53 19 26.792 1 in 52.1 24 10/27/2020 6
54 18 25.382 1 in 55.0 31 7/7/2020 22
55 18 25.382 1 in 55.0 22 9/1/2020 14
56 17 23.972 1 in 58.2 24 12/26/2017 154 Overdue
57 17 23.972 1 in 58.2 26 11/17/2020 3
58 16 22.562 1 in 61.9 23 11/5/2019 57
59 16 22.562 1 in 61.9 31 11/10/2020 4
60 15 21.152 1 in 66.0 16 8/11/2020 17
61 15 21.152 1 in 66.0 18 1/29/2019 97
62 14 19.741 1 in 70.7 18 7/17/2018 125
63 14 19.741 1 in 70.7 19 1/21/2020 46
64 13 18.331 1 in 76.2 20 9/8/2020 13
65 13 18.331 1 in 76.2 15 5/22/2018 133
66 12 16.921 1 in 82.5 23 7/23/2019 72
67 12 16.921 1 in 82.5 23 5/26/2020 28
68 11 15.511 1 in 90.0 12 2/13/2018 147
69 11 15.511 1 in 90.0 12 6/18/2019 77
70 10 14.101 1 in 99.0 11 4/4/2017 192
71 10 14.101 1 in 99.0 8 8/13/2019 69
72 9 12.691 1 in 110 12 5/7/2019 83
73 9 12.691 1 in 110 14 6/23/2020 24
74 8 11.281 1 in 124 5 5/19/2020 29
75 8 11.281 1 in 124 15 9/19/2017 168
76 7 9.871 1 in 141 11 3/31/2020 36
77 7 9.871 1 in 141 6 9/1/2009 586 Overdue
78 6 8.461 1 in 165 12 7/2/2019 75
79 6 8.461 1 in 165 12 10/3/2017 166
80 5 7.051 1 in 198 11 4/28/2020 32
81 5 7.051 1 in 198 9 4/9/2019 87
82 4 5.640 1 in 248 5 6/2/2020 27
83 4 5.640 1 in 248 3 6/21/2011 494
84 3 4.230 1 in 330 5 3/1/2011 510
85 3 4.230 1 in 330 6 7/7/2015 283
86 2 2.820 1 in 495 7 12/24/2019 50
87 2 2.820 1 in 495 6 12/31/2013 362
88 1 1.410 1 in 990 2 3/29/2011 506
89 1 1.410 1 in 990 1 10/10/2000 1,050

Page Last Updated: Tuesday, 1 December 2020 10:37 AM