Other terms: "Runner-up", "1st place", "semi-finalist" and other such terms do not qualify for capitalization (except at the beginning of a sentence like this one). ... Hyphenate "runner-up", "semi-finalist" and "quarter-finalist", as they are compound nouns (but usually not fully-compounded – avoid "quarterfinalist").

Which is correct semi-final or semi finals?

A semi-final is one of the two matches or races in a competition that are held to decide who will compete in the final. The Canadian canoeist won the first semi-final in 35.595 sec. The semi-finals is the round of a competition in which these two matches or races are held.

Is semi-final hyphenated?

APStylebook on Twitter: "It's semifinals - one word, no hyphen.