With reference from Olympic Problem and special thanks to KVADRATIKUM.

QUOTE
Do not affect a series of victories (not terminate and do not increase):
- Matches with technical defeat
- Friendlies
- Local FU, Commercial, Inter-Union
The defeat of the enemy at any level is always interrupts the series.
Increases the only series victory over the enemy equal or more powerful enemy.


The below mentioned are situations where matches won are not considered in your winning streak:
- by Technical Loss
- in Friendlies, Local FU, Commercial, Inter-Union
- opponent is of lower level than you.

However, any defeat (regardless of level) will reset you're winning streak.