Arizona Diamondbacks vs Boston Red Sox
Official starting lineups are published a few hours before first pitch. They will appear here and on the lineup page as soon as they are posted.
Arizona Diamondbacks at Boston Red Sox (2026-08-19). Brandon Pfaadt vs Payton Tolle at Fenway Park.
Brandon Pfaadt holds a 3.11 ERA and a 1.13 WHIP with a 7-1 record. Across 92.2 innings, he has recorded a 5.92 K/9, a 2.33 BB/9, and a 0.78 HR9. In his last three outings, he delivered 7.0 innings with 0 earned runs, 7 strikeouts, and 0 walks, followed by 7.0 innings with 0 earned runs, 2 strikeouts, and 2 walks, and 6.2 innings with 0 earned runs, 3 strikeouts, and 1 walk. His ERA trend is moving down. Payton Tolle brings strong run prevention with a 2.97 ERA and an 8-6 record over 115.0 innings. His previous three appearances produced lines of 8.0 innings, 0 earned runs, 4 strikeouts, and 2 walks; 6.0 innings, 1 earned run, 14 strikeouts, and 0 walks; and 6.0 innings, 2 earned runs, 7 strikeouts, and 2 walks. He carries a 1.06 WHIP alongside 10.02 strikeouts per nine innings, 2.43 walks per nine innings, and a 1.02 HR9, with his overall trend pointing down.
The Diamondbacks offense enters with a .712 OPS, a .243 batting average, and 572 total runs scored. On the mound, Arizona features a 4.17 team ERA and a 1.29 WHIP, having gone 4-6 over their last ten games. Boston counters with a .728 team OPS, a .250 batting average, and 569 runs on the season. The Red Sox pitching staff maintains a 3.51 team ERA paired with a 1.22 WHIP, matching a 4-6 record across their past ten contests.
