In Standings table the wins, losses, and ties are summed from outcome of each pick. If a team wins a individual game (not parlay or teaser) with their pick, they earn a single win. Same applies to losses and ties for individual game picks.
If a team wins a parlay or teaser pick, they earn a win for each win in the parlay or teaser. If they lose, they get a single loss in standings.
Note: For parlays and teasers, the loss will be applied to first game in the series of games. This is notable because if you pick two or more different sports in a parlay and lose, the loss is applied to the first game/sport so when you filter standings by sport, that parlay loss will count towards only the first sport picked.