With runners on the corners and one out against closer Zach Britton, Frazier grounded to second baseman Jonathan Schoop. Running from first base, Hamilton did not stop and lure Schoop into a rundown or make him throw to first base. Despite trying to lunge out of the way, Hamilton was tagged on the thigh before Schoop threw to first base for the double play that kept the tying run from scoring.
"He made a good play on me," Hamilton said. "I needed to try and beat him in there or stop. It was a little too late before it happened. He made a good play, and it ended the game."
"We got a ground ball, which would have scored the tying run," Reds manager Bryan Price said. "We needed to avoid the tag there and not get tagged in that situation."
The Orioles celebrated the win and headed off the field. After a few moments elapsed, Price challenged the call.
"What a play by Jon there," O's manager Buck Showalter said. "Tough call whether to play the infield up or back, but Jon made a heck of a play there. Wasn't really close. I don't know why -- I thought they weren't able to challenge that at a certain point. I was surprised they even went through it."
It didn't take long for the call to stand and the game to really be over. The play of Hamilton being tagged on the leg remained frozen in time inside the clubhouse.
"They said he tagged him. We've got it up on the video board right there," Price said. "The glove is on his thigh. There is no angle that would have showed any separation. It took about 12 seconds to uphold the call. He made a baserunning mistake to run into the tag, and it hurts."
It was a tough time for a teachable moment for the rookie Hamilton, who set a new rookie club record with his 55th steal in the first inning.
"You know as a baserunner that you absolutely cannot be tagged there," Price said. "It's the only way they're going to turn two in that situation, at least a traditional tag and throw to first to prevent the run scoring from third base. It's those things that you have to learn from them. It's the only thing you can pull from a game like this. You hope it's the only time we have to learn that lesson, and not re-live it at some point again."
Mark Sheldon is a reporter for MLB.com. Read his blog, Mark My Word, and follow him on Twitter @m_sheldon. This story was not subject to the approval of Major League Baseball or its clubs.