Austria's marginal edge stems primarily from a more disciplined defensive structure, conceding 1.54 per game against Algeria's leakier 1.91, which the model weights heavily given both sides' inability to keep clean sheets recently. With Elo ratings as the strongest signal nudging Austria ahead, the low combined expected goals (2.10) reflects two cautious, error-prone defenses canceling out attacking ambition. The 1-1 projection and 43% BTTS probability point to a tight, low-event contest where a single defensive lapse likely decides the margin.