KANSAS CITY, Mo. >> Danny Duffy won his 10th straight decision, Eric Hosmer doubled in the go-ahead run and the Kansas City Royals beat the Minnesota Twins 2-1 Sunday for their eighth consecutive win.

The Royals swept a four-game series from the Twins for the first time since 1999 and have their longest winning streak since an eight-game run Aug. 3-11, 2014.

Duffy (11-1), unbeaten since June 6, improved to 5-0 with a 1.18 ERA in August. His 2.66 ERA ranks second in the American League, while his .917 winning percent tops the majors.

Duffy left after 6 2/3 innings, allowing one run and a season-high eight hits while walking two and striking out four.

He outpitched Twins right-hander Ervin Santana (6-10), who allowed two runs and five hits while striking out 10 and walking one over seven innings.

Duffy worked out a no-out bases loaded jam in the second inning with the help of a couple of fielding gems. After Eddie Rosario struck out, Alex Gordon made a sliding catch of Kurt Suzuki’s fly to shallow left. Third baseman Cheslor Cuthbert snagged Danny Santana’s hard hit grounder and threw out Eduardo Escobar at second base.

Hosmer’s two-out double in the sixth over the head of center fielder Rosario scored Lorenzo Cain, who had an infield single.

Hosmer singled in the second, moved to third on Kendrys Morales’ double and scored on Alcides Escobar’s ground out for the first Kansas City run.

Santana has a 1.91 ERA in his past 11 starts after beginning the season 1-7 with a 5.10 ERA.

Robbie Grossman and Trevor Plouffe doubled in the third to produce the only run off Duffy.

Kelvin Herrera pitched a perfect ninth to log his seventh save in nine chances.

MOLITOR’S BIRTHDAY

Twins manager Paul Molitor turns 60 Monday. “There’s some plans being made for me,” Molitor said. “I’ll be a willing participant. It’ll be nice to have an off day and do some things with the family. But not celebrate, I’m past that point.”

NO MAUER

1B Joe Mauer, who is a career .326 hitter with 14 home runs and 111 RBIs against the Royals, went 0 for 12 in the series and was not in the lineup Sunday. He grounded out as a pinch hitter in the ninth.

SEEING THE LIGHT

The Twins recalled RHP Pat Light, who was acquired from Boston on Aug. 1, from Triple-A Rochester, where he had a 2.57 ERA in six outings. He appeared in two games for the Red Sox this season, giving up seven runs in 2 2/3 innings.

TRAINER’S ROOM

Royals: RHP Kris Medlen (rotator cuff inflammation) made a Saturday rehab start for Triple-A Omaha, allowing three runs and two hits, including a home run, and a walk in 1 2/3 innings against Nashville. He threw 22 strikes in 34 pitches.

UP NEXT

Twins: RHP Kyle Gibson starts the series opener against Detroit on Tuesday. Gibson threw a complete-game Wednesday at Atlanta.

Royals: RHP Yordano Ventura starts the series opener at Miami on Tuesday. Ventura is 0-2 in two interleague starts, yielding 11 runs over eight innings.