The Royals took a 1-0 lead with two outs in the third when Alex Gordon hit a home run to right-center field against lefty Tony Cingrani. The homer was Gordon's first hit for extra bases this spring.
"I was taking a lot of pitches early on and just decided I was going to go after it and I put a good swing on it," said Gordon, who is 7-for-14 this spring. "I hadn't really been swinging too well even though the numbers might not show it. But I really hadn't felt that good, so it felt better to have a result like that."
The Royals' second run came in the fourth inning against Reds reliever Logan Ondrusek when Mike Moustakas hit a one-out double and scored on Max Ramirez's RBI single. The bases were left loaded in the fourth when Jay Bruce made a nice sliding catch in the right-field corner to end the inning.
Moustakas added a two-out, RBI double to right field in the fifth against Jose Arredondo that made it a 3-0 game.
Four more runs crossed in the sixth on three straight RBI singles from Christian Colon, Xavier Nady and Brandon Wood. Nady's scored two runs.
Colon, ranked the 10th best Royals prospect, added another RBI single in the eighth to make it 8-0.
Ryan LaMarre's two-out, RBI double off of the right-field wall in the eighth scored Kris Negron, and ended the Reds' scoreless innings streak at 19.
In his second spring start, Reds right-hander Homer Bailey struck out five of the seven Royals he faced in two scoreless innings. Bailey retired the side in order in the first with two strikeouts, and struck out the side in the second. His only blemish was a two-out lined single to right-center by Lorenzo Cain in the second.
Up next: Monday is the first of three off days the Royals have during this elongated Spring Training. Normally they have just one open date during the Cactus League schedule. They resume play at 2:05 p.m. CT on Tuesday against the Athletics at Surprise Stadium. The game can be heard live on Gameday Audio. Fifth-starter candidates Bruce Chen and Luke Hochevar are scheduled in the same game for the second time, and it's Chen's turn to start. Behind them will be bullpen regulars Aaron Crow, Greg Holland and Louis Coleman.
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.