Guinea Ol., although it lost both matches, still has a chance to advance from the group; to do so, it needs to win today and win convincingly. USA Ol. does not look like a clear favorite here, and certainly not based on its performance—it is not stronger than the opponent.
USA Ol. - Guinea Ol. - the visitors have already lost all chances of advancing from the group after losing both matches, while the USA need to pick up points here and make it to the playoffs; the team is decent and capable of completing the task, so here is the prediction