MIAMI — Luis Arraez had two hits to raise his major league-leading batting average to .401 and help the Miami Marlins beat the Kansas City Royals 6-1 on Tuesday night. Second in the NL East, the Marlins have won five straight to improve to 34-28 — the first time they’ve been six games over .500 since August 2016. After Arraez flew out to left in his first two at-bats, he hit consecutive singles to finish 2 for 4 with an RBI.