americas ascension play ins

hello can anyone explain how it works how many teams qualify to ascension and how many games do the 3 teams play do they just play both other teams in a swiss stage or what

pretty shit format i mean seing the 3rd place spot seperated im guessing after the 3 matches whoever is top 2 goes to groups. Meaning 2nd spot may come down to rounds which will be fun to watch

top 2, single round robin