Seattle Mariners vs Kansas City Royals MLB Betting Prediction
PublishedSeptember 16, 2025,            Posted By: Maria Uebelhor
Last updated:September 16, 2025 ,

MLB Seattle Mariners vs Kansas City Royals Prediction 9/16

The Seattle Mariners will play the Kansas City Royals on Tuesday, September 16, 2025, at Kauffman Stadium. The game starts at 7:40 PM and will be shown on FDSKC. The Mariners have a record of 82-68 and are on a nine-game winning streak, while the Royals hold a 75-75 record. The weather forecast is for a very hot day with overcast clouds.

Mariners vs. Royals Betting Prediction

  • Money Line Prediction: Seattle Mariners -140. The Mariners have been on a strong winning streak with 9 wins in a row. They have a solid recent performance, going 9-1 in their last 10 games.
  • Over/Under Prediction: Over 8.5 (-103). Both teams have shown the ability to score runs, with the Royals recently scoring 10 runs in a game. The Mariners have also had high-scoring games, like their 11-2 win over the Angels.

Team Trends

  • Seattle Mariners have a strong record of 82-68 and are ranked 1st in the AL West.
  • Mariners are on a 9-game winning streak and have won 9 of their last 10 games.
  • Kansas City Royals have a balanced record of 75-75 and are 3rd in the AL Central.
  • Royals have a home record of 40-35 this season.
  • The game will be played at Kauffman Stadium with overcast clouds and very hot weather.

Mariners vs Royals Preview

The Seattle Mariners are on a roll with a nine-game winning streak as they prepare to play the Kansas City Royals. The Mariners are leading their division with a record of 82-68. Logan Gilbert will take the mound for Seattle, looking to improve his 4-6 record. Gilbert has an ERA of 3.54 and a WHIP of 1.03, which shows his ability to keep runners off base.

On the other side, the Kansas City Royals hold a 75-75 record and are third in their division. Michael Wacha will start for the Royals. He has a 9-11 record with an ERA of 3.45 and a WHIP of 1.18. The Royals recently won their last game, aiming to build some momentum. The game will be played at Kauffman Stadium, where the weather is expected to be very hot with overcast clouds.

Royals Ready for the Game

The Kansas City Royals are set to play with strong hitters leading the way. Bobby Witt Jr. has played 145 games with a batting average of .292. His on-base percentage is .350, and he has hit 22 home runs. Vinnie Pasquantino is another key player for the Royals. He has played 148 games and has a batting average of .265. Pasquantino leads the team with 30 home runs and has driven in 104 runs. Maikel Garcia has also contributed to the Royals’ lineup. He has a batting average of .291 over 148 games. Garcia has hit 16 home runs and scored 71 runs this season.

Mariners’ Key Players and Stats

Cal Raleigh stands out for the Seattle Mariners. He has played 147 games with a batting average of .244. Raleigh leads the team with 54 home runs and 115 RBIs. Eugenio Suárez is another important player for the Mariners. He has played 147 games and holds a batting average of .226. Suárez has hit 45 home runs and driven in 109 runs. Josh Naylor adds depth to the Mariners’ lineup. He has played 137 games with a batting average of .284. Naylor has hit 19 home runs and scored 75 runs this season.

Final Betting Pick

The Mariners are on a strong run, winning 9 of their last 10 games. This makes the money line prediction of Seattle at -140 a solid choice. Their recent performance shows they can win both high-scoring and close games, which adds to their confidence on the road.

For the over/under prediction, choosing over 8.5 runs is reasonable. Both teams have shown they can score, with the Royals recently putting up 10 runs in a game. The Mariners also have high-scoring games, such as their 11-2 win over the Angels. With both teams capable of putting runs on the board, the over is a good pick.

All odds are courtesy of Action247 Sportsbook. Good luck!!

* All odds are provided by Action247 Sportsbook and all odds subject to change. **All views expressed are my own. My picks are my own and are not a guarantee, bet at your own risk. Action247 does not warrant the accuracy of completeness of the information, text, graphics, links or other items contained within these post.