The only younger Mariners with walk-off hits were Alex Rodriguez (20 years, 248 days in 1996) and Danny Tartabull (21 years, 317 days in 1984).
• Brad Miller became the eighth Mariner to make his Major League debut when he started at shortstop on Friday, joining Brian Bantz, Franklin, Bobby LaFromboise, Brandon Maurer, Yoervis Medina, Jesus Sucre and Zunino. The only team to have more players make their debut this season is the St. Louis Cardinals with nine.
• Friday's comeback win was the first in 35 chances this season for Seattle when they were trailing after seven innings.
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.