Merrfield's speed metric (28.6) ranked behind the Marlins' Dee Gordon (29.3) and the White Sox' Alen Hanson (28.7).
"It does feel pretty good," Merrifield said. "I feel like sometimes my speed sometimes gets overlooked a little. It's nice to have some validation. I work pretty hard on my speed."
What Merrifield liked the most was that he ranked ahead of Mike Trout (28.4).
"Let that sink in," Merrifield said, smiling.
Eric Hosmer ranked as baseball's second-fastest first baseman at 27.5, behind former Royals prospect Wil Myers (28.