League table abbreviations

I'm probably being very dense (no changes there some might say), but what do the abbreviations H2H and SB mean in the league tables?

H2H is Head to head score (i.e. the direct match(es) between the teams in question). SB is, I think, the Sonneborn-Berger tiebreak score, but I'll let someone with more knowledge answer that!

@Veganbiker, @glamdring27 is correct in both those explanations.

You can get more detail about H2H, here, in the rules, Rule 11. is applicable.

and this forum describes how the S-B tie-break is applied.

I am swiftly and suitably enlightened. Thanks gents, much appreciated.