This chart shows the frequency of numbers being drawn over a period of time. Hot Numbers are frequently drawn recently and Cold Numbers have not been drawn as often.
Heat Maps
The chart below visually represents the frequency with which each number has been drawn over a specific period. In this heat map, colors indicate how often each number appears, with deep red representing the most frequently drawn numbers and dark blue indicating the least frequent. Warmer colors show moderately high frequencies, while cooler tones represent less common numbers. This color-coded system allows viewers to quickly identify "hot" numbers—those that appear more often—and "cold" numbers—those that are rarely drawn—making it a useful tool for analyzing patterns or trends in lottery results.
Zero Based Heat Map
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
| 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 |
| 46 | 47 |
The value range is from 0 to the maximum number frequency of 16
Minimum Frequency Based Heat Map
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
| 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 |
| 46 | 47 |
The value range is from the minimum number frequency of 1 to the maximum number frequency of 16
Hot and Cold Numbers
"Hot" and "Cold" numbers refer to how often certain numbers are drawn over time. Hot numbers are those that appear most frequently in recent draws and are often highlighted in dark red on a heat map. These numbers are believed by some players to have a higher chance of appearing again due to their repeated occurrences. On the other hand, cold numbers are those that have been drawn the least often and are shown in dark blue on the heat map. Moreover, the "consecutive draw" column typically refers to how many consecutive draws (lotto results) a specific number has appeared in. It's a measure of how "hot" or persistent a number is over recent draws.
| Ball | Frequency | Consecutive Draw | Last Draw | |
|---|---|---|---|---|
1 |
13 |
|
2 | Jul-22-2025 |
2 |
14 |
|
4 | Jul-01-2025 |
3 |
13 |
|
2 | Apr-22-2025 |
4 |
11 |
|
2 | Apr-01-2025 |
5 |
7 |
|
0 | Jul-22-2025 |
6 |
11 |
|
1 | Jul-15-2025 |
7 |
7 |
|
2 | Jul-15-2025 |
8 |
12 |
|
2 | Jun-24-2025 |
9 |
11 |
|
2 | May-13-2025 |
10 |
11 |
|
2 | May-13-2025 |
11 |
6 |
|
1 | Feb-25-2025 |
12 |
12 |
|
0 | Jun-24-2025 |
13 |
14 |
|
3 | Jul-15-2025 |
14 |
8 |
|
1 | Apr-15-2025 |
15 |
11 |
|
4 | Jun-10-2025 |
16 |
14 |
|
3 | Jul-01-2025 |
17 |
13 |
|
4 | Jul-22-2025 |
18 |
14 |
|
3 | May-13-2025 |
19 |
9 |
|
0 | Jun-24-2025 |
20 |
5 |
|
0 | Jul-15-2025 |
21 |
16 |
|
5 | Jul-22-2025 |
22 |
9 |
|
1 | May-20-2025 |
23 |
10 |
|
4 | Jun-24-2025 |
24 |
13 |
|
2 | Jun-24-2025 |
25 |
10 |
|
1 | Jul-22-2025 |
26 |
12 |
|
0 | Jul-01-2025 |
27 |
9 |
|
1 | Jul-08-2025 |
28 |
12 |
|
1 | Jul-01-2025 |
29 |
14 |
|
3 | Jun-17-2025 |
30 |
15 |
|
3 | Apr-29-2025 |
31 |
11 |
|
2 | Jun-17-2025 |
32 |
16 |
|
2 | Jul-22-2025 |
33 |
12 |
|
1 | Jun-10-2025 |
34 |
9 |
|
3 | Jun-03-2025 |
35 |
8 |
|
1 | May-06-2025 |
36 |
10 |
|
1 | Jul-22-2025 |
37 |
10 |
|
1 | May-27-2025 |
38 |
11 |
|
1 | Jul-01-2025 |
39 |
15 |
|
5 | Jul-15-2025 |
40 |
9 |
|
2 | May-13-2025 |
41 |
9 |
|
2 | Jul-15-2025 |
42 |
8 |
|
2 | Jan-28-2025 |
43 |
12 |
|
3 | Jul-08-2025 |
44 |
11 |
|
2 | Jul-08-2025 |
45 |
12 |
|
3 | Jun-24-2025 |
46 |
11 |
|
2 | Jun-03-2025 |
47 |
15 |
|
7 | Jul-08-2025 |
Format Changes in Australia's Oz Lotto
Oz Lotto, Australia’s first national lottery, has undergone several format changes since its launch in 1994. Below is the timeline of the Australia's Oz lotto format changes:
| Period | Format | Supplementary Nos. |
|---|---|---|
| 1994 - Oct. 11, 2005 | 6 numbers from a pool of 45 (6/45) | 2 numbers from the same pool. |
| Oct. 18, 2005 - May 10, 2022 | 7 numbers from a pool of 45 (7/45) | 2 number from the same pool. |
| May 17, 2022 - Present | 7 numbers from a pool of 47 (7/47) | 3 number from the same pool |
Initially, the game required players to select six numbers from a pool of 45, and two supplementary numbers were drawn to help determine secondary prizes. In October 2005, the format was modified to increase the number of main numbers drawn from six to seven, still from a pool of 45, while retaining two supplementary numbers. This change made the jackpot more difficult to win but allowed for larger prize pools. In May 2022, Oz Lotto underwent another significant update. The number pool was increased from 45 to 47, while the game continued to draw seven main numbers. Additionally, the number of supplementary numbers increased from two to three. Along with this change, the minimum jackpot prize was raised from $2 million to $3 million, and the overall odds of winning any prize improved, creating more opportunities for players to win across additional prize divisions. These changes reflect Oz Lotto's ongoing efforts to remain engaging and competitive within Australia’s lottery landscape.
How Australia's Oz Lotto Format Changes Affect Your Number Strategy.
These format changes have a direct impact on statistical analysis. Mixing frequency data across different formats is not advisable because each version of the game has a different number pool and probability structure.
For example, a number that appeared frequently in the 6/45 format may have done so due to higher individual draw probability, but that same frequency can be misleading in the 7/45 or 7/47 formats. Furthermore, changes to the number pool also significantly affect how often a specific supplementary numbers appear.
Therefore, for meaningful analysis, it’s essential to treat each format as its own distinct dataset. Analyzing trends or frequencies should be restricted to results from within the same format period, especially if the goal is to inform number selection in the current game structure.