You're looking for RedRuby's thread "Daily Replays (Skilled)"
Pre-warning, RedRuby is an elitist prick, and you will see mostly 5s games there (and occasionally 1v1).
5s are 5 on 5 pick up games, with only veteran players permitted to play, and RedRuby will only play 1v1 against people he knows. You will need at least 50 (sometimes many more) online wins before you will be considered for 5s (unless you are a verified smurf), and RedRuby must know you from 5s before you can 1v1.
Best of Luck!