But when he had a chance to watch the replay, he acknowledged that Johnson made the correct call.
"I wouldn't have gone out there if I didn't think he was safe," Hurdle said. "Then after I got in, Adrian made a good call; he was on the bag.
"I trust my eyes, and my eyes were wrong. I went out there, and I really felt confident he was off the bag."
After the Rockies turned the double play, Hurdle immediately hustled out of the dugout and began arguing with Johnson, earning the ejection soon after.
It was Hurdle's fifth ejection this year, his first since July 25, when he was tossed in a 9-7 loss to the Nationals in Washington.
Ian McCue is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.