Hollins lost track of the outs in the seventh inning Saturday night and threw a live ball into the stands, helping the Orioles beat the Devil Rays 4-3.
Hollins made a nice running catch, partially falling over the wall down the left-field line, on Eric Byrnes' foul ball with one out and David Newhan on second. Newhan tagged up and advanced to third after the catch, then was awarded home to make it 4-2 after Hollins started running toward the dugout and threw the ball into the seats.
"I thought it was three outs ... my mistake," Hollins said. "I threw it up and took four or five steps in and looked up and saw all the infielders were looking at me like I was a ghost. That's when I knew that I had did something wrong.
"It happens every now and again. You hope you're not the culprit behind it, but it was on me today and I have to take responsibility for it."
Hollins was charged with an error on the play.
"I just went to tag," Newhan said. "I usually go halfway. I saw him hung over the railing for a while and I had time to get to third. When I saw him running in I knew what happened."
The victory was Baltimore's third in the past 14 games.
"It was a heads-up play on David's part," Orioles interim manager Sam Perlozzo said. "When he headed to third, he knew exactly what was going on. It turned out to be the biggest play of the night."
Rodrigo Lopez (15-12) allowed two runs and six hits in 6 1/3 innings to snap a personal three-game losing streak. B.J. Ryan pitched the ninth for his 36th save in 41 opportunities.
Sal Fasano and Melvin Mora homered for the Orioles. Baltimore has only four multihomer games since Sept. 1.
Mark Hendrickson (11-8) had his franchise record seven-game winning streak snapped despite pitching the Devil Rays' first complete game of the season.
Hendrickson allowed eight hits in his first loss since July 20. It was the first complete game by a Tampa Bay pitcher since Rob Bell pitched one at Detroit last Oct. 1.
"That's something that every one of us has been through at some point in our lives," Hendrickson said of Hollins' error. "No one feels worse than him. It's just something that unfortunately happens."
Hendrickson went over and tapped Hollins in the dugout after the inning ended.
"My focus got away from me," Hollins said. "Mark Hendrickson pitched a great game. It (stinks) for him to have to take that loss when I was responsible for it."
Gil put the Orioles up 1-0 with an RBI double in the third. Fasano made it 2-0 one inning later with his career-high 10th homer of the season.
The Devil Rays tied it at 2-all in the fourth on Jorge Cantu's run-scoring single and a sacrifice fly by Jonny Gomes.
Mora gave Baltimore a 3-2 lead on a sixth-inning homer. He has homered in six of his last 10 games.
Pinch-hitter Eric Munson brought the Devil Rays within 4-3 on a sacrifice fly in the eighth.
Orioles C Javy Lopez was out of the starting lineup because of food poisoning. ... Tampa Bay LF Carl Crawford (sore left wrist) pinch ran in the ninth and was thrown out trying to steal third. He had missed three games in a row. ... Fasano's homer was his first since July 24, which also came at Tampa Bay. ... Cantu extended his franchise record for RBI to 117.