Snake bites

• Mired in an 8-for-55 (.145) slump since April 12, Martin Prado batted leadoff Saturday for the first time this season. The 29-year-old has seen his batting average drop from .304 to .218 over the stretch.

In 134 career starts batting first, Prado has a .298 batting average with 19 homers and 71 RBIs.

• Prado isn't the only D-backs player cold at the plate right now. Since April 11, Miguel Montero and Cliff Pennington are a combined 10-for-77 (.130).

• The D-backs have held the lead in 16 of their 23 games this season.

Tyler Emerick is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.