# Thunderball Bell Curve Statistics

This page displays a Bell Curve, also known as a Normal Distribution or Gaussian Distribution, for Thunderball. 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.

Thunderball data is not included in these statistics as only one number is drawn.

Number Sum Total Possible Combinations Expectation Actual Over 2,387 Draws
Count Frequency Count Last Drawn Draws Ago
15 1 0.004 1 in 575,757 0 Never Never
16 1 0.004 1 in 575,757 0 Never Never
17 2 0.008 1 in 287,878 0 Never Never
18 3 0.012 1 in 191,919 0 Never Never
19 5 0.021 1 in 115,151 0 Never Never
20 7 0.029 1 in 82,251 0 Never Never
21 10 0.041 1 in 57,575 0 Never Never
22 13 0.054 1 in 44,289 0 Never Never
23 18 0.075 1 in 31,986 0 Never Never
24 23 0.095 1 in 25,032 1 29/08/2020 638
25 30 0.124 1 in 19,191 1 20/05/2016 1,443
26 37 0.153 1 in 15,561 0 Never Never
27 47 0.195 1 in 12,250 0 Never Never
28 57 0.236 1 in 10,101 1 19/06/2015 1,587
29 70 0.290 1 in 8,225 0 Never Never
30 84 0.348 1 in 6,854 1 13/07/2016 1,420
31 101 0.419 1 in 5,700 0 Never Never
32 119 0.493 1 in 4,838 0 Never Never
33 141 0.585 1 in 4,083 1 07/05/2021 495
34 164 0.680 1 in 3,510 1 30/12/2020 568
35 192 0.796 1 in 2,998 0 Never Never
36 221 0.916 1 in 2,605 1 02/03/2022 324
37 255 1.057 1 in 2,257 3 11/06/2019 893
38 291 1.206 1 in 1,978 0 Never Never
39 333 1.381 1 in 1,729 2 18/07/2023 37
40 377 1.563 1 in 1,527 2 18/04/2018 1,132
41 427 1.770 1 in 1,348 0 Never Never
42 480 1.990 1 in 1,199 1 21/12/2016 1,351
43 540 2.239 1 in 1,066 6 28/06/2022 257
44 603 2.500 1 in 954 2 14/02/2020 751
45 674 2.794 1 in 854 1 17/12/2021 367
46 748 3.101 1 in 769 1 01/01/2022 358
47 831 3.445 1 in 692 2 25/09/2019 832
48 918 3.806 1 in 627 2 01/08/2014 1,725 Overdue
49 1,014 4.204 1 in 567 5 22/05/2020 695
50 1,114 4.618 1 in 516 7 07/12/2022 164
51 1,224 5.075 1 in 470 4 04/03/2023 114
52 1,338 5.547 1 in 430 2 16/11/2022 176
53 1,462 6.061 1 in 393 9 17/06/2023 54
54 1,590 6.592 1 in 362 5 14/04/2020 717
55 1,729 7.168 1 in 333 9 08/10/2021 407
56 1,871 7.757 1 in 307 10 02/06/2023 63
57 2,024 8.391 1 in 284 12 13/06/2023 57
58 2,180 9.038 1 in 264 10 01/09/2023 11
59 2,347 9.730 1 in 245 13 28/12/2022 152
60 2,517 10.435 1 in 228 9 24/06/2023 50
61 2,697 11.181 1 in 213 14 14/08/2021 438 Overdue
62 2,879 11.936 1 in 199 5 04/08/2023 27
63 3,072 12.736 1 in 187 17 25/03/2023 102
64 3,266 13.540 1 in 176 11 11/07/2023 41
65 3,470 14.386 1 in 165 15 09/08/2023 24
66 3,674 15.232 1 in 156 18 16/04/2022 298
67 3,888 16.119 1 in 148 14 31/05/2023 64
68 4,101 17.002 1 in 140 16 16/08/2023 20
69 4,323 17.922 1 in 133 16 14/04/2023 91
70 4,543 18.835 1 in 126 18 20/12/2022 157
71 4,771 19.780 1 in 120 15 25/01/2022 345 Overdue
72 4,996 20.713 1 in 115 26 12/07/2023 40
73 5,228 21.674 1 in 110 13 10/03/2023 111
74 5,455 22.616 1 in 105 21 08/04/2023 94
75 5,689 23.586 1 in 101 24 12/09/2023 5
76 5,916 24.527 1 in 97 22 09/05/2023 77
77 6,148 25.489 1 in 93 26 27/12/2022 153
78 6,372 26.417 1 in 90 26 23/05/2023 69
79 6,600 27.363 1 in 87 28 22/02/2023 120
80 6,818 28.266 1 in 84 25 20/06/2023 53
81 7,038 29.178 1 in 81 25 24/01/2023 137
82 7,246 30.041 1 in 79 26 14/03/2023 109
83 7,455 30.907 1 in 77 30 02/09/2023 10
84 7,650 31.716 1 in 75 35 24/02/2023 119
85 7,844 32.520 1 in 73 32 01/02/2023 132
86 8,022 33.258 1 in 71 22 10/02/2023 127
87 8,198 33.988 1 in 70 36 26/08/2023 14
88 8,357 34.647 1 in 68 39 13/05/2022 283 Overdue
89 8,512 35.289 1 in 67 25 15/10/2022 194 Overdue
90 8,649 35.857 1 in 66 41 15/08/2023 21
91 8,781 36.405 1 in 65 35 13/05/2023 74
92 8,894 36.873 1 in 64 31 18/08/2023 19
93 9,001 37.317 1 in 63 48 23/06/2023 51
94 9,088 37.677 1 in 63 34 25/08/2023 15
95 9,169 38.013 1 in 62 47 10/06/2023 58
96 9,229 38.262 1 in 62 53 20/09/2023 0
97 9,282 38.482 1 in 62 35 11/08/2023 23
98 9,314 38.614 1 in 61 28 15/09/2023 3
99 9,339 38.718 1 in 61 41 09/09/2023 6
100 9,343 38.735 1 in 61 40 05/08/2022 235 Overdue
101 9,339 38.718 1 in 61 38 22/08/2023 17
102 9,314 38.614 1 in 61 32 01/08/2023 29
103 9,282 38.482 1 in 62 41 02/08/2023 28
104 9,229 38.262 1 in 62 50 25/04/2023 85
105 9,169 38.013 1 in 62 36 22/03/2023 104
106 9,088 37.677 1 in 63 33 30/08/2023 12
107 9,001 37.317 1 in 63 52 12/08/2023 22
108 8,894 36.873 1 in 64 33 19/08/2023 18
109 8,781 36.405 1 in 65 47 05/08/2023 26
110 8,649 35.857 1 in 66 31 11/05/2022 284 Overdue
111 8,512 35.289 1 in 67 27 11/03/2023 110
112 8,357 34.647 1 in 68 38 27/05/2023 66
113 8,198 33.988 1 in 70 42 25/07/2023 33
114 8,022 33.258 1 in 71 21 16/09/2023 2
115 7,844 32.520 1 in 73 30 08/08/2023 25
116 7,650 31.716 1 in 75 36 07/06/2023 60
117 7,455 30.907 1 in 77 35 19/09/2023 1
118 7,246 30.041 1 in 79 32 19/07/2023 36
119 7,038 29.178 1 in 81 25 28/05/2022 274 Overdue
120 6,818 28.266 1 in 84 22 08/09/2023 7
121 6,600 27.363 1 in 87 15 31/07/2020 655 Overdue
122 6,372 26.417 1 in 90 28 21/02/2023 121
123 6,148 25.489 1 in 93 33 28/06/2023 48
124 5,916 24.527 1 in 97 27 13/09/2023 4
125 5,689 23.586 1 in 101 31 28/01/2023 134
126 5,455 22.616 1 in 105 19 24/05/2023 68
127 5,228 21.674 1 in 110 22 03/03/2023 115
128 4,996 20.713 1 in 115 27 06/09/2023 8
129 4,771 19.780 1 in 120 29 09/06/2023 59
130 4,543 18.835 1 in 126 16 26/07/2023 32
131 4,323 17.922 1 in 133 16 01/05/2021 498 Overdue
132 4,101 17.002 1 in 140 24 05/09/2023 9
133 3,888 16.119 1 in 148 20 30/07/2022 238
134 3,674 15.232 1 in 156 11 16/02/2022 332 Overdue
135 3,470 14.386 1 in 165 16 28/09/2022 204
136 3,266 13.540 1 in 176 8 25/05/2022 276
137 3,072 12.736 1 in 187 16 29/10/2022 186
138 2,879 11.936 1 in 199 7 04/07/2023 45
139 2,697 11.181 1 in 213 8 08/10/2022 198
140 2,517 10.435 1 in 228 10 01/06/2021 481 Overdue
141 2,347 9.730 1 in 245 12 01/10/2022 202
142 2,180 9.038 1 in 264 12 26/10/2022 188
143 2,024 8.391 1 in 284 4 05/05/2020 705 Overdue
144 1,871 7.757 1 in 307 7 15/02/2023 124
145 1,729 7.168 1 in 333 6 22/09/2020 625
146 1,590 6.592 1 in 362 2 12/01/2021 561
147 1,462 6.061 1 in 393 9 04/11/2022 183
148 1,338 5.547 1 in 430 5 01/09/2021 428
149 1,224 5.075 1 in 470 9 29/08/2023 13
150 1,114 4.618 1 in 516 4 14/12/2022 160
151 1,014 4.204 1 in 567 5 27/07/2019 866
152 918 3.806 1 in 627 2 21/06/2023 52
153 831 3.445 1 in 692 2 05/06/2021 478
154 748 3.101 1 in 769 4 23/08/2023 16
155 674 2.794 1 in 854 2 18/03/2016 1,470
156 603 2.500 1 in 954 4 25/12/2021 362
157 540 2.239 1 in 1,066 1 22/03/2022 313
158 480 1.990 1 in 1,199 1 30/09/2016 1,386
159 427 1.770 1 in 1,348 4 21/07/2018 1,078
160 377 1.563 1 in 1,527 0 Never Never
161 333 1.381 1 in 1,729 2 05/08/2020 652
162 291 1.206 1 in 1,978 2 21/01/2023 138
163 255 1.057 1 in 2,257 1 19/01/2019 974
164 221 0.916 1 in 2,605 0 Never Never
165 192 0.796 1 in 2,998 1 21/08/2021 434
166 164 0.680 1 in 3,510 3 30/12/2022 151
167 141 0.585 1 in 4,083 0 Never Never
168 119 0.493 1 in 4,838 1 20/05/2022 279
169 101 0.419 1 in 5,700 0 Never Never
170 84 0.348 1 in 6,854 0 Never Never
171 70 0.290 1 in 8,225 0 Never Never
172 57 0.236 1 in 10,101 1 24/03/2023 103
173 47 0.195 1 in 12,250 0 Never Never
174 37 0.153 1 in 15,561 0 Never Never
175 30 0.124 1 in 19,191 0 Never Never
176 23 0.095 1 in 25,032 0 Never Never
177 18 0.075 1 in 31,986 0 Never Never
178 13 0.054 1 in 44,289 0 Never Never
179 10 0.041 1 in 57,575 0 Never Never
180 7 0.029 1 in 82,251 0 Never Never
181 5 0.021 1 in 115,151 0 Never Never
182 3 0.012 1 in 191,919 0 Never Never
183 2 0.008 1 in 287,878 0 Never Never
184 1 0.004 1 in 575,757 0 Never Never
185 1 0.004 1 in 575,757 0 Never Never

Page Last Updated: Wednesday, 20th September 2023 9:31 pm