Koss went 1-for-4 with an RBI double in Tuesday's 4-1 win over the Astros.
Koss lined a double to left field in the sixth inning, driving in San Francisco's final run. He's recorded a hit in three straight games and is batting .191 with three runs scored, two RBI and a stolen base across 49 plate appearances since the All-Star break. He figures to continue seeing increased opportunities for the injury-plagued Giants, as Matt Chapman (abdomen) underwent season-ending surgery Tuesday.