Chained Series is similar to "Upper Bracket Favour", but a little less common and often not formally or uniformly defined by the tournaments who use them. In essence, the presence of a chained Series means that the the face-off between two competitors is determined by more than one Series. This is most commonly referred to as a "reset" but it can also be communicated as a "series of series". This format predominantly occurs in double elimination brackets in Smash and SCII in the grand finals.
In practice this means that the competitor from the upper bracket get a one Series advantage going into the grand final. Thus, if the upper bracket competitor wins the first Series played they win the grand final. On the other hand, if the lower bracket competitor wins the first Series played the overall scores are reset and another, determining, Series is played.
When Series are grouped or chained in this manner, an ordered list consisting of the chained Series' ids is supplied. Allowing this format and the sequence in which the Series are played to be recognised. Because this format is most commonly know as a reset than a series of series we do not create an "empty" Series with the upper bracket team as winner (as we do with upper bracket favour Series). Instead we only show the Series that were actually played in the chain list. Regardless if the format dictated by the tournament organiser is called reset or series of series, the overall winner is alway the winner of the last Series in the chain.