The phrase "middling results" means that the outcome or performance is average or mediocre, not particularly good or bad.
Sentences with «middling results»
He began his career as a standup comic in the early to mid -»70s, with middling results at best, a period during which he also met another, albeit more successful, comedian, Jerry Seinfeld, who would also become a lifelong friend. (rottentomatoes.com)
He's had to WD here twice and posted many middling results in between those two wins. (sbnation.com)
Republicans in the Senate and Assembly earned more middling results from the group in the report released on Wednesday. (nystateofpolitics.com)