Complex sentence: The Red Sox came back from a 1--3 deficit to defeat the Indians 4--3, outscoring them 30--5 over the final three games of the Series.
Split into simpler sentences: The Red Sox came back from a 3-1 deficit to defeat the Indians 4-3. Boston's comeback was done in convincing fashion as they outscored Cleveland 30-5 over the final three games of the series.