Seattle Mariners vs Kansas City Royals MLB Recap Betting Prediction
PublishedSeptember 19, 2025,            Posted By: Maria Uebelhor
Last updated:September 19, 2025 ,

MLB Recap: Seattle Mariners vs Kansas City Royals – 9/18/25

The Seattle Mariners secured a 2-0 win over the Kansas City Royals at Kauffman Stadium on September 18, 2025. With this win, the Mariners improved their record to 83-69, sitting second in the AL West. The Royals, with a record of 76-76, remain third in the AL Central.

Luis Castillo was the winning pitcher for the Mariners, improving his season record to 9-8 with a 3.76 ERA. Key performances included Jorge Polanco and J.P. Crawford each contributing an RBI. The game was played under clear skies with temperatures reaching 100 degrees.

The Mariners scored their first run in the second inning. Jorge Polanco hit a double, driving in the run. This early lead set the tone for the rest of the game. In the eighth inning, J.P. Crawford added another run for the Mariners. He also hit a double, bringing in the second run. The Royals could not score, and the Mariners won 2–0.

In the Mariners’ win over the Royals, Luis Castillo played a key role on the mound. He pitched six innings, allowing only three hits and no runs. Castillo struck out three batters, earning the win and improving his record to 9-8.

For the Mariners’ lineup, Josh Naylor and Jorge Polanco had important contributions. Naylor scored one of the two runs for Seattle and collected two hits. Polanco added a double and an RBI, helping to secure the team’s victory.

On the Royals’ side, Stephen Kolek was the losing pitcher despite a solid performance. He pitched over seven innings, allowing two runs, with only one earned. Kolek struck out eight batters and walked one, but it wasn’t enough to overcome the Mariners.

What’s Next

The Mariners’ win over the Royals improves their record to 83-69. This places them in 2nd position in the AL West. With only a few games left in the season, each win is important for their playoff chances. The Royals now have a record of 76-76, sitting in 3rd place in the AL Central. This game could affect their chances of climbing the standings. Both teams aim to finish the season strong, but the Mariners have a better position right now.

The Seattle Mariners will face the Houston Astros next. This series will start on Friday, September 19, 2025, at 8:10 PM. The game will be held at Daikin Park, and the Mariners will play away from home.

The Kansas City Royals will start a new series against the Toronto Blue Jays. Their first game is scheduled for Friday, September 19, 2025, at 7:40 PM. This game will take place at Kauffman Stadium, with the Royals playing at home.

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.