Seattle Mariners (82-68, first in the AL West) vs. Kansas City Royals (75-75, third in the AL Central) Kansas City, Missouri; Tuesday, 7:40 p.m. EDT PITCHING PROBABLES: Mariners: Logan Gilbert (4-6, 3.54 ERA, 1.03 WHIP, 159 strikeouts); Royals: Michael Wacha (0-0) BETMGM SPORTSBOOK LINE: Mariners -139, Royals +117; over/under is 8 1/2 runs BOTTOM LINE: The Kansas City Royals start a three-game series at home against the Seattle Mariners on Tuesday. Kansas City is 75-75 overall and 40-35 at home. The Royals have a 37-8 record in games when they scored five or more runs.