Royals 5, Cardinals 3 (15): Yuniesky Betancourt hit a two-run homer in the 15th inning as visiting Kansas City took the rubber game of the I-70 series and won for the fifth time in six games.

Down to their final strike, the Royals tied it in the ninth on Billy Butler's pinch-hit homer and went ahead in the 14th on Betancourt's RBI double. But St. Louis tied it in the bottom half as Yadier Molina delivered a two-out RBI hit off closer Jonathan Broxton (1-1). It was his third blown save in 19 chances.

Betancourt's blast off Eduardo Sanchez (0-1) finally settled things, sending the Cardinals to a 4-5 homestand.

Kansas City trailed 2-1 with two outs in the ninth when Butler launched a 438-foot homer off Jason Motte, who absorbed his fourth blown save. Motte had fanned the first two batters and had Butler in an 0-2 hole.

Matt Holliday and Allen Craig drilled back-to-back sixth-inning homers, the sixth time the Cardinals have hit back-to-back homers this season. Holliday's blast travel 434 feet to center and was his 12th of the season. Craig sent one into the left field stands two pitches later.

Cards starter Adam Wainwright went seven innings and allowed one run on five hits while striking out eight. Royals starter Luis Mendoza pitched well until giving up the long balls. He allowed six hits over six innings while striking out five and walking one.

Humberto Quintero had a second-inning RBI single for Kansas City.

GAME NOTEBOOK: Royals second baseman Chris Getz left in the bottom of the first with an apparent ankle injury. ... St. Louis failed to execute a suicide squeeze in the fifth, with Tyler Greene getting thrown out easily at home. ... Holliday is 6-for-8 with two homers, six RBIs and a walk over the last two games.