Statistically, double-number combinations appear to win less frequently than non-double combinations. But not all. Some double-number combinations tend to win as frequent as non-double combinations. For example, (7 - 7) and (16-16) have each won 7 and 8 times respectively during the last 3 years (2011 - 2013). In contrast, (1 - 1) and (6 - 6), (8 - 8), (11-11), (18-18), and (30-30) have each won only once during the same period.

(16-16) had won on 5/25/11, 12/1/11, 3/31/12, 8/10/12, 8/31/12, 9/21/12, 10/1/12, and 2/2/13.

(17-17) had won on 1/18/11, 8/11/11, 9/20/12, 12/30/12 and 5/5/13.

(25-25) had won on 4/7/11, 12/30/11, 3/20/12, 11/4/12, and 3/5/13. Note how the dates interestingly relate with those of (17-17).

The combinations above are 4 of the 7 double-number combinations that had won 5 to 8 times during the last 3 years. The other three are (3-3), (4-4) and (19-19). Did you also notice how the number 7 exists in these interesting facts?

*In the Philippines, a double-number combination is termed "pompyang", which means "cymbals", a percussion instrument played by a member of a marching band.*### Double Combinations Versus Non-Double Combinations

There are only 31 double-number combinations versus 930 non-double (ordered) combinations. For that reason, non-double combinations appear to win more frequently than double-number combinations. As to non-ordered combinations, there are 465 non-double combinations vs 31 double-number combinations. Taken individually, there are double-number combinations which are at par with non-double combinations as far as winning frequency is concerned.### Some Interesting Facts About Some Double-Number Combinations

(7 - 7) had won on 1/26/11, 2/27/12, 3/1/12, 3/2/12, 3/4/12, 1/24/13, and 7/25/13. If you're fond of number series exams in IQ tests, you will find the dates interesting. Take a look at the first two dates. The combination won again after 1 year, 1 month, and 1 day.(16-16) had won on 5/25/11, 12/1/11, 3/31/12, 8/10/12, 8/31/12, 9/21/12, 10/1/12, and 2/2/13.

(17-17) had won on 1/18/11, 8/11/11, 9/20/12, 12/30/12 and 5/5/13.

(25-25) had won on 4/7/11, 12/30/11, 3/20/12, 11/4/12, and 3/5/13. Note how the dates interestingly relate with those of (17-17).

The combinations above are 4 of the 7 double-number combinations that had won 5 to 8 times during the last 3 years. The other three are (3-3), (4-4) and (19-19). Did you also notice how the number 7 exists in these interesting facts?