MLB

Chicago enters with the better offense, posting a .251 batting average, .339 on-base percentage, .769 OPS, 841 runs, and 218 home runs, but the Cubs have also allowed 695 runs and carry a 4.15 team ERA. Boston's offense is lighter at .246, .319, and .718 with 681 runs and 162 home runs, yet the Red Sox offset that with sharper run prevention and a steadier bullpen. Boston has dropped six of its last ten, while Chicago is 5-5 over that span, so the recent form gap is not wide enough to erase the pitching edge at home.
Alec Gamboa is listed for Boston. The Red Sox left-hander has been used in a swing role and brings far less proven starting value than Chicago's arm, which raises some risk for Boston early. Even so, Boston's relief group has been better than Chicago's over the full season, so Gamboa does not need to dominate for the Red Sox to stay competitive. Clay Holmes is listed for Chicago. His season numbers have been solid, but he is still a pitcher the Cubs are leaning on in a fresh role rather than a long-established front-end starter. Chicago's overall pitching staff has been more hittable than Boston's, and that keeps the gap smaller than the offense numbers alone suggest.
Chicago has the better offense, but Boston's stronger pitching numbers and home-field setting point to a close game rather than a comfortable Cubs win. The projected score is Chicago Cubs 4, Boston Red Sox 3, which supports Boston +1.5 as the best value side while keeping the total in a modest range.