Ultra Lotto 6/58 Top vs Bottom


Which Numbers Should You Play: Top or Bottom Numbers

My previous post mentioned that top winning numbers do not win all the time. They win most frequently than others but not every time; not from every draw. This means that from other draws, the top numbers are not the winning numbers. So, which other numbers usually win?

Top or Bottom


To make frequency data more meaningful, rank them based on the number of times each number wins wherein the most frequently winning numbers rank higher. Then, rank them using percentile ranking wherein the numbers that rank higher would belong to a higher percentile ranking, say 90% to 100%.


With the use of percentile ranking, you can determine the top 50% and bottom 50%. Applied to lottery system 6/58, the top 50% would be lotto numbers that win most; while the other half are numbers that win less.
    The top and bottom 50% may not necessarily comprise 29 (58 divided by 2) numbers. They may consist of less than or more than 29 numbers depending on how they rank at the end of a period.

    Findings

    Based on 2911 balls drawn, statistics says that:
      • 54% of the winning numbers are top numbers;
      • 46% of the winning numbers are bottom numbers.
    This means that winning numbers are a mix of top and bottom numbers. The next questions are:
      • How top is top and how bottom is bottom?
      • How many top numbers should you play; and how many bottom numbers?
    Let’s find out.

    The Top 50%

    Based on 521 draws, each winning number was ranked to find out if it belonged to the top 50% or bottom 50%. (The first 60 draws were excluded from the study because their ranking were not significant yet.)

    If 54% of the winning numbers are top numbers, how many top numbers would you play? In other words, how many top numbers should your combination consist of. Let’s find that out by calculating how many top numbers made it to the jackpot.

    Findings

    The good news is that 98.5% of the results contain the top 50% lotto numbers. That means a 98% probability that at least one top number would make it to the jackpot. However, the probability of winning a prize is only 60%, which is already good. The not-so good news is that to win a major prize (5 numbers correct), the probability is only 7.7%. To win a jackpot prize, the probability is a slim 1.3%. 

    Following are the complete data.

    The chance of:
      • 6 top numbers to win is 1.3%;
      • only 5 top numbers to win is 6.3%;
      • only 4 top numbers to win is 18.6%;
      • only 3 top numbers to win is 33.8%;
      • only 2 top numbers to win is 26.5%;
      • only 1 top number to win is 11.9%.
      • No top number to win is 1.5%.

    The Bottom 50%


    Based on the same number of draws examined, 98.7% of the results consisted of at least one bottom number. Let’s find out how many bottom numbers usually comprise a jackpot result.
    • 6 bottom numbers,1.5%;
    • 5 bottom numbers, 11.9%;
    • 4 bottom numbers, 26.5%;
    • 3 bottom numbers, 33.8%;
    • 2 bottom numbers, 18.6%;
    • 1 bottom number, 6.3%;
    • 0 bottom number, 1.3%.
    Based on the data above, rarely that a draw result would contain 6 bottom numbers. The most common is that a draw result would contain 2 - 4 bottom numbers.

    The Middle Group

    In the previous paragraphs, I only talked about the top and bottom numbers. There is another group: the middle group. These are numbers that are just above and below the median. By separating the middle group from the top and bottom numbers, we limit our choices of numbers to a few.

    Even further, we can further divide the top, middle and bottom numbers into two to make 6 groups. Thus, we shall have the ~ 
    1. Prime top numbers
    2. Secondary top numbers
    3. Middle numbers above median
    4. Middle numbers below median
    5. Secondary bottom numbers
    6. Lowest bottom numbers
    The next post, High Ranking vs Low Ranking Numbers, will explain this 6 groups in full details.

    Conclusion

    • Rarely that a result of a lotto draw consists of 5 or 6 top numbers; likewise, 5 or 6 bottom numbers.
    • At most, draw results contain 3 top numbers and 3 bottom numbers. A safe range would be 2 - 4 top numbers.

    Strategy

    • To make your combination, pick at most 3 top numbers and 3 bottom numbers. In other cases, you may try 2:4 or 4:2 ratio;
    • An option is to make 3 combinations:
      1. one that contains 2 top numbers and 4 bottom numbers;
      2. the 2nd has 3 top numbers and 3 bottom numbers;
      3. and the 3rd has 4 top numbers and 2 bottom numbers.
    Playing the 3 combinations option gives you a 78.9% chance of winning assuming you played all the top numbers. (Assuming there are 26 top numbers, this will require 2600 combinations.) If you wish to increase your chances by 18%, try also the 5:1 ratio (5 top or bottom).

    Top and Bottom Numbers of Ultra Lotto 6/58 Based on Winning Frequency

    Based on the winning frequency of Ultra Lotto 6/58 numbers, this chart presents the top 50% and bottom 50%. Lotto numbers that win most are denoted with higher percentage. The data are based on the current 360-draw period. Why 360? If all results were considered, the data seemed to ease eliminating any significant changes.

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