BOSTON -- Eric Hosmer delivered a game-tying two-run single and Mike Moustakas smacked a two-run double in a crazy four-run rally in the ninth inning off Red Sox closer Junichi Tazawa as the Royals surged to an 8-6 win on Sunday afternoon at Fenway Park, earning a split in the four-game series.
Red Sox left fielder Jackie Bradley Jr., who hit two RBI doubles to help Boston rally from a 4-2 deficit and take a 6-4 lead, made an incredible throw from deep left-center field to throw out Omar Infante, who was vying for an inside-the-park homer, at home for the first out in the ninth inning.
"One of the best throws I've seen in a long time. … If not ever," Moustakas said.
The Royals loaded the bases with three singles before Hosmer laced a two-run single to left of Tazawa. After a walk, Moustakas ripped a two-run double to right, though Kendrys Morales was thrown out at the plate trying to score.
"Those were great at bats," Royals manager Ned Yost said. "It was an awesome ninth inning for us. Just a succession of great at-bat after great at-bat after great at-bat."
Eduardo Rodriguez started for the Red Sox and delivered six strong innings, allowing seven hits and two earned runs.
"That was a weird one," Boston shortstop Xander Bogaerts said. "It would've been much nicer if we had come out on the good side of that. We battled back great and just came up short today."
MOMENTS THAT MATTERED Moustakas oppo again: Moustakas once again demonstrated that he may have his opposite-field swing back in order. Moustakas hammered an opposite-field homer over the Green Monster in the sixth inning, his 13th homer of the season. Moustakas also laced an RBI double to deep right-center in the fourth and the two-run double in the ninth.
The home run came after a nine-pitch at-bat. The ninth-inning double came after a 10-pitch at bat.
"He's the star of the game," Yost said of Moustakas. "That at-bat in the ninth inning, that's a 9.7 out of 10 stars. He just kept battling." More >
Bullpen blues: After entering the ninth with a two-run lead, Tazawa surrendered four runs on six hits and a walk en route to his fifth blown save since July 31. The Red Sox recently promoted the right-hander from setup man to closer following Koji Uehara's season-ending wrist fracture.
"It certainly is an adjustment," Tazawa said through a translator. "I don't want to risk or give up a loss, but certainly I'll learn from this." More >
Davis, not Holland, in ninth:Wade Davis closed out the ninth for the Royals and not closer Greg Holland, who got the save in Saturday's game. Davis quieted the Red Sox in the ninth. Last week, Yost said he wanted to get Holland more consistent work, but Holland pitched just once in this series and just twice on the six-game road trip.
Yost said there is nothing physically wrong with Holland.
"He's fine," Yost said. "I'm just being extra cautious with him."
Misty Sunday miscues: The Red Sox committed two errors on the same play in the fourth inning, leading to a pair of unearned runs crossing the plate. With one out, a chopper rolled under second baseman Josh Rutledge's glove and up the middle, which allowed Morales to reach first on a fielder's choice and sent Hosmer running to third. Hosmer then scored when Pablo Sandoval could not pick Mookie Betts' throw in from center field. Betts was charged with the error, and Moustakas doubled in the next at-bat to put the Royals ahead, 3-2.
"I think the thing that really impressed me about [Rodriguez] is he gets a double-play ball that ends up leading to a couple of [unearned] runs," Boston interim manager Torey Lovullo said. "And typically what a young pitcher will do is continue to let that linger and give up six or seven runs and we've got to pull him out of the game in the fourth inning. And I expressed to him exactly what that meant to him, to the rest of the pitching staff and everybody that was watching him, that he was able to get through six innings and have a really good outing. He didn't crumble."
"Are you kidding me? I thought that ball was off the wall to start with, the way he turned his back. That was definitely a tough catch after he turned his back. He threw home with that great arm that he has. That's one of his best plays." -- Bogaerts, on Bradley throwing out Infante at home plate
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Eleven of Bradley's last 12 hits have gone for extra-bases, beginning with a double against the Mariners on Aug. 14. He has since hit seven doubles, a triple and three home runs while raising his overall slugging percentage to .535. The streak ended with a ninth-inning single.
WHAT'S NEXT Royals: Right-hander Kris Medlen will make his first start since Sept. 27, 2013, when he was with the Braves, as the Royals open a four-game home series with Baltimore on Monday night. Medlen, replacing Jeremy Guthrie in the rotation, likely will be on a 60-75 pitch limit.
Red Sox: Righty Joe Kelly (6-6, 5.37 ERA) will try to extend his individual winning streak to five games on Monday night, when the Red Sox begin a six-game road trip against the White Sox at U.S. Cellular Field. After winning only two of his first 16 starts, Kelly has pitched to a 1.56 ERA over his last three. First pitch is set for 8:10 p.m. ET.
Jeffrey Flanagan is a reporter for MLB.com. Follow him on Twitter at @FlannyMLB.
Alec Shirkey is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.