Mariners vs Royals Prediction 6/30/25 MLB Picks Today

The Kansas City Royals and the Seattle Mariners meet Monday in MLB action from T-Mobile Park. We will look at this from a betting perspective and determine the best bets for this game. Here’s a Mariners vs Royals Prediction.

Starting Pitching Matchup

The Kansas City Royals will send out Michael Wacha for the start here and Wacha is 4-7 with a 3.33 ERA and 74 strikeouts this season. In his last five starts against the Mariners, Wacha is 2-1 with a 4.32 ERA and 23 strikeouts. George Kirby will get the start for the Mariners here and is 1-4 with a 5.40 ERA and 36 strikeouts this season. In his career, Kirby is 1-0 with a 2.25 ERA and 12 strikeouts against the Royals.

Kansas City Royals Recap

The Kansas City Royals come into this game looking to bounce back from a 5-1 loss at the hands of the Los Angeles Dodgers last time out to sit at 39-45 on the year. After this series, the Royals will head on the road for a series against the Arizona Diamondbacks.

Royals Drop 7 Of Their Last 8

Bobby Witt Jr. has 94 hits with 29 doubles and 21 stolen bases along with 3 triples, 11 home runs and 43 RBIs while Vinnie Pasquantino has 86 hits with 9 doubles, a triple, 12 home runs and 47 RBIs. Maikel Garcia’s added 95 hits with 22 doubles, 3 triples, 8 home runs and 38 RBIs and 18 stolen bases and Salvador Perez also has 9 home runs and 43 RBIs but also has 69 strikeouts so far this season.

Why the Kansas City Royals will win

Kansas City Royals Player Prop Facts

Seattle Mariners Recap

The Seattle Mariners come into this game looking to build on their 6-4 win over the Texas Rangers last time out to sit at 43-40 on the year. After this series, the Mariners will take on the Pittsburgh Pirates at home.

Mariners Finish Road Trip On High Note

Jorge Polanco has 56 hits including 11 home runs and 38 RBIs while Cal Raleigh has 84 hits with 16 doubles, a team-high 32 home runs and 69 RBIs. Randy Arozarena has 72 hits with 20 doubles, 8 home runs, 33 RBIs and 15 stolen bases. Julio Rodriguez also has 88 hits with 12 doubles, 3 triples, 11 home runs, 42 RBIs and 13 stolen bases. Dylan Moore has 8 homers and 9 stolen bases as well this season. Rowdy Tellez has also added 11 home runs and 27 RBIs while J.P Crawford has 81 hits with 10 doubles, 6 home runs and 30 RBIs.

Why the Seattle Mariners will win

Seattle Mariners Player Prop Facts

Total Runs Facts

Mariners vs Royals Prediction

I’m on the Mariners here. I get the case to be made for the Royals, as Wacha hasn’t been terrible this season. However, the Royals’ offense continues to be inconsistent, and I don’t know if I can trust them here to match what the Mariners bring to the table. The Mariners have been the more trustworthy offense as of late, and I think that Seattle draws first blood here. Give me the Mariners here.

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