Roulette 2nd to none (or the one without a second)

This is a betting method for one single number.

Surprisingly perhaps, I'm not going to suggest any MM, only the principle which determines the betting selection.

The goal is for any leading number (ongoing charting) to extend its lead to 2 hits before another one ties in hits.
Valid qualifying occasions are all the following:

"2-0 VS 1-1"
Any number to get 2 hits before a second gets 1, thus we begin betting the last spun number in order to come for a 2nd consecutive time, if any other number comes instead stop betting and wait for the next qualification.

"3-1 VS 2-2"
Any number to get 3 hits before another gets 2, as soon as we have the 1st number with 2 hits we'll re-immence betting for that number gaining its 3rd ball, if any other number comes for a 2nd time before winning then stop betting and wait for the next qualification.

"4-2 VS 3-3"
Any number to get 4 hits before a second gets 3, as soon as we have the 1st number with 3 hits we'll re-immence betting for that number gaining its 4th ball, if any other number comes for a 3rd time before winning then stop betting and wait for the next qualification.

"5-3 VS 4-4"
Any number to get 5 hits before another gets 4, as soon as we have the 1st number with 4 hits we'll re-immence betting for that number gaining its 5th ball, if any other number comes for a 4th time before winning then stop betting and wait for the next qualification.

"6-4 VS 5-5"
Any number to get 6 hits before a second gets 5, as soon as we have the 1st number with 5 hits we'll re-immence betting for that number gaining its 6th ball, if any other number comes for a 5th time before winning then stop betting and wait for the next qualification.

"7-5 VS 6-6"
Any number to get 7 hits before a second 1 gets 6, as soon as we have the 1st number with 6 hits we'll re-immence betting for that number gaining its 7th ball, if any other number comes for a 6th time before winning then stop betting and wait for the next qualification.

"8-6 VS 7-7"
Any number to get 8 hits before a second 1 gets 7, as soon as we have the 1st number with 7 hits we'll re-immence betting for that number gaining its 8th ball, if any other number comes for a 7th time before winning then stop betting and wait for the next qualification.

"9-7 VS 8-8"
Any number to get 9 hits before a second 1 gets 8, as soon as we have the 1st number with 8 hits we'll re-immence betting for that number gaining its 9th ball, if any other number comes for a 8th time before winning then stop betting and wait for the next qualification.

"10-8 VS 9-9"
Any number to get 10 hits before a second 1 gets 9, as soon as we have the 1st number with 9 hits we'll re-immence betting for that number gaining its 10th ball, if any other number comes for a 9th time before winning then stop betting and wait for the next qualification.

"11-9 VS 10-10"
Any number to get 11 hits before a second 1 gets 10, as soon as we have the 1st number with 10 hits we'll re-immence betting for that number gaining its 11th ball, if any other number comes for a 10th time before winning then stop betting and wait for the next qualification.

"12-10 VS 11-11"
Any number to get 12 hits before a second 1 gets 11, as soon as we have the 1st number with 11 hits we'll re-immence betting for that number gaining its 12th ball, if any other number comes for a 11th time before winning then stop betting and wait for the next qualification.

"13-11 VS 12-12"
Any number to get 13 hits before a second 1 gets 12, as soon as we have the 1st number with 12 hits we'll re-immence betting for that number gaining its 13th ball, if any other number comes for a 12th time before winning then stop betting and wait for the next qualification.

"14-12 VS 13-13"
Any number to get 14 hits before a second 1 gets 13, as soon as we have the 1st number with 13 hits we'll re-immence betting for that number gaining its 14th ball, if any other number comes for a 13th time before winning then stop betting and wait for the next qualification.

"15-13 VS 14-14"
Any number to get 15 hits before a second 1 gets 14, as soon as we have the 1st number with 14 hits we'll re-immence betting for that number gaining its 15th ball before any other number comes for a 14th time.

When you win, at any given moment, restart the whole process from scratch.