Prop Bets: Seattle Mariners VS Kansas City Royals 2025-09-18
Seattle Mariners vs. Kansas City Royals: A Humorous Prediction for September 18, 2025
The Seattle Mariners (-124) are here to flex their AL West-leading muscles, while the Kansas City Royals (+104) will try to play spoiler in a game where the over/under is a bloated 9 runs. Let’s break this down with the precision of a radar gun and the humor of a post-game interview gone wrong.
The Money Line: A Confidence Boast
The Mariners are favored at -124, meaning bookmakers think they’re about 55% likely to win. For context, that’s less confidence than a fan who’s seen Luis Castillo (9-8, 3.76 ERA) pitch this season. The Royals, meanwhile, are +104 underdogs—perfect for those who enjoy rooting for teams that hit 146 home runs but somehow still lose 76 games.
Offense Overload
Seattle’s offense is a hit machine: 4.7 runs/game, 221 home runs, and Cal Raleigh (56 HRs, 118 RBI) leading the charge. The over/under for this game is 9 runs, and with both teams hitting like they’re in a batting cage riot, the over (-110) is a no-brainer. The Mariners have hit the over 82 of 87 games this season—call it the “Mariner’s Overload.”
Key Players & Props to Watch
- Cal Raleigh (Mariners): Over/under on his RBIs is 1.5. If he doesn’t hit a moonshot, this prop is toast.
- Bobby Witt Jr. (Royals): His “hits + runs + RBIs” prop is set at 2.5. If he doesn’t triple, it’s a loss.
- Luis Castillo (Mariners): He’s got a 4.5 strikeout prop. If he doesn’t strike out 5, you’re just… wrong.
- Vinnie Pasquantino (Royals): The “over” on his home runs is 0.5. He’s hit 30 this year—don’t sleep on the long ball.
Pitcher Props: A Tale of Two Arms
- Luis Castillo (Mariners): 4.5 Ks (-115). If he doesn’t strike out 5, you’ll feel like you’ve wasted your life.
- Stephen Kolek (Royals): 3.5 Ks. If he’s lucky, he’ll get 4. If not, it’s a 9-run inning.
Why This Game is a Joke
The Mariners have won 61 of 106 games as favorites this year. The Royals? They’ve won 39 of 87 as underdogs. This is a classic case of “the favorite is good, the underdog is okay, but the odds are a math problem.”
Final Verdict
The Mariners will win 5-4 in a game where both teams hit 3 HRs. Bet the over, the Mariners’ run line (-1.5), and Cal Raleigh to hit a moonshot. And if you’re a Royals fan, maybe just enjoy the fireworks.
Final Score Prediction: Seattle 5, Kansas City 4
Prop Bets to Make: Over on runs (9), Cal Raleigh RBIs (1.5), Bobby Witt Jr. hits (0.5).
Remember: Gambling is a tax on impatience. But hey, at least it’s more fun than watching Stephen Kolek pitch.
Created: Sept. 18, 2025, 2:10 p.m. GMT