It’s the second game of a four-game series between AL West rivals on the diamond in the Emerald City as the Kansas City Royals travel to face the Seattle Mariners Tuesday night and we have you covered with our Royals vs. Mariners prediction. Kansas City dropped the rubber game of their three-game series with the Dodgers at home Sunday afternoon, falling 5-1. Seattle took the rubber game of their three-game set on the road with the Rangers, picking up a 6-4 victory in 12 innings Sunday afternoon.... Read more

KC and Seattle play again on Tuesday in the second of their four-game series. Get the lowdown on this matchup with our Royals vs. Mariners prediction and picks. First pitch is scheduled for 6:40pm PT (9:40pm ET) at T Mobile Park, home of the Mariners. When it comes to baseball picks, our MLB Predictions are a Grand Slam. June swoon hurts RoyalsThe Royals (39-46) signed off on a disastrous month with a loss on Monday to fall further out of the Wildcard discussion. KC went 8-18 in June and has won... Read more

Get our free Baseball betting pick for the Seattle Mariners vs Kansas City Royals matchup and gain an edge as a Baseball bettor. Read more

The Mariners are -135 favorites vs the Royals Royals vs Mariners Over / Under today: 8.5 Runs Royals / Mariners TV Channel: RTNW | FDKC The Kansas City Royals (+110) visit T-Mobile Park to take on the Seattle Mariners (-135) on Tuesday, July 1, 2025. First pitch is scheduled for 9:40pm EDT in Seattle, WA. This season, the Royals are 39-46 against the spread (ATS), while the Mariners are 37-46 ATS. Royals vs Mariners Starting Pitchers Today: Royals starting pitcher: Michael Lorenzen 4-8, 4.91 ERA... Read more