15-8 in boxing / kickboxing would be a journeyman. A chump.
But in mma its the man - Randy

that record shows the person has experience. It doesn't say they are "the man" in mma at all but if they have a good ground game it shows they may be well rounded imo

Just showing the record is a little misleading.

When you consider that 11 out of his last 12 fights had title implications, you know he's one of the best.