California SuperLotto Plus Clustering Distribution

  Number Frequency   Mega Ball Frequency   Overdue Numbers   Odd/Even Numbers   High/Low Numbers   Sum and Root Sum   Hot and Cold Numbers   Most Common Pairs   Most Common Triplets   Most Common Quadruplets   Mean, STDEV, and Range Trend   Mean Distribution   Range Distribution   STDDEV Distribtion   IQR Distribution   Clustering Distribution
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  Number Frequency   Mega Ball Frequency   Overdue Numbers   Odd/Even Numbers   High/Low Numbers   Sum and Root Sum   Hot and Cold Numbers   Most Common Pairs   Most Common Triplets   Most Common Quadruplets   Mean, STDEV, and Range Trend   Mean Distribution   Range Distribution   STDDEV Distribtion   IQR Distribution   Clustering Distribution

In lottery number analysis, the Interquartile Range (IQR) measures the spread of the middle 50% of drawn numbers. It is also used in showing how tightly or loosely the central values cluster, helping reveal typical spacing behavior in lotto results.

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Last 75 draws
From Feb. 5, 2025 To Oct. 22, 2025

Histogram of Number Clustering

The histogram of number clustering measures the typical spacing between consecutive numbers in lotto draws. Each bin represents a range of average gaps, showing whether numbers tend to cluster closely together or spread evenly across the draw. This histogram helps analysts detect patterns in number spacing, complementing other perspectives such as sums and ranges.

The histogram of average gaps between consecutive numbers in lotto draws reveals that the most frequent gap interval is 7-8 with 16 occurrences, suggesting a strong clustering in this interval. In contrast, the least frequent gap interval is 1-2 with 0 occurrences, showing it is rarely observed. This indicates a noticeable concentration of draws around certain gap intervals. Overall, the distribution shows clustering around specific gap intervals, indicating that draws tend to gravitate toward these values.

Format Changes in California's SuperLotto

Since its inception in 1986, California SuperLotto has undergone several significant format changes that have impacted the odds of winning the jackpot. Here’s a clear timeline of the California SuperLotto Plus format changes since its inception:

Period Format Mega Ball
October 18, 1986 6 numbers out of 49 none.
June 30, 1990 6 numbers out of 53 none.
April 29, 2000 5 numbers out of 47 1 number out of 27

Initially, the game followed a 6/49 format, where players selected six numbers from a pool of 49, offering odds of about 1 in 13.98 million. In 1990, the format was modified to 6/53, making it slightly more difficult to win. The most substantial change occurred in 2000 when the game was rebranded as SuperLotto Plus. The new format required players to choose five numbers from 1 to 47 and a separate Mega number from 1 to 27, shifting to a two-drum system. This overhaul increased the jackpot odds to approximately 1 in 41 million.

How California SuperLotto Plus 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 5/47 format may have done so due to higher individual draw probability, but that same frequency can be misleading in the 6/49 or 6/53 formats.

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.

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