Cubs vs Pirates: match prediction on 13 September 2026

Cubs to win. The run differential sits at 4.3 for the home side and 3.9 for the visitors. A home victory follows if the Cubs keep the aggression that yielded 12 runs against the Pirates two days ago.

The home side holds the edge. On 11 September they dismantled the visitors 12:2 in front of their own supporters. The run differential suggests a 4-3 or 5-4 type of game.

The Cubs have not looked like the dominant force that score suggests. In their last five matches they managed one win and four defeats, collecting just three points while scoring 27 runs and conceding 28. The results read 12:2, 6:8, 3:4, 3:4, 3:10. Only the win over the Pirates stands out; the rest show a side that can score but cannot prevent runs.

The visitors have been far more consistent. Four victories and one loss in five games, twelve points, eighteen runs for and seventeen against. Their recent results are 2:12, 2:0, 4:2, 9:3, 1:0. The heavy defeat at the Cubs' hands is the only blemish, and even that came against a side that was firing on all cylinders. Since then they have won three straight against the White Sox and the Angels.

The model's figures are not a timetable for today. They are an average over many simulated versions of the match, and 4.3 means the home side most often scores four or five runs. The prediction breaks down if the Pirates repeat their defensive discipline, keeping the scoreline tight and forcing extra innings. A draw would suit the visitors, and given how they run the clock down, that is the main threat.