Royals vs Mariners Prediction and MLB Tips - 19 September 2025
Last updated: Sep 17, 2025, 11:16PM | Published: Sep 17, 2025, 9:30PM
The Kansas City Royals will face the Seattle Mariners in MLB action at Kauffman Stadium on Friday, beginning at 4:10am AEST.
Michael Lorenzen (5-11, 4.95 ERA) will be on the bump for the Royals, while the Mariners will counter with Luis Castillo (9-8, 3.76 ERA).
This article features Stats Insider's free betting tips for the Royals vs Mariners game, as well as the latest betting odds in Australia.
Who Will Win?
Using advanced computer power and data, Stats Insider has simulated the outcome of Friday's Kansas City vs Seattle MLB game 10,000 times.
Our independent predictive analytics model gives the Mariners a 52% chance of defeating the Royals at Kauffman Stadium.
Royals vs Mariners: Odds
The latest betting odds in Australia for Friday's MLB game at Kauffman Stadium are listed below:
- Head to Head: Royals $2.05, Mariners $1.80
- Line: Royals +1.5 ($1.67), Mariners -1.5 ($2.25)
- Total (Over/Under 9 Runs): Over $1.91, Under $1.91
Odds are correct at the time of publication and subject to change.
Looking at the latest head-to-head odds, the bookmakers currently have the Royals at $2.05 and the Mariners at $1.80.
The Royals are listed as 1.5-run underdogs against the Mariners, with odds of $1.67 available at TAB.
For the favourite Mariners (-1.5) to cover the line, TAB offers odds of $2.25.
The over/under for total runs scored is set at 9 with TAB, which has odds of $1.91 for the over and $1.91 for the under.
According to Stats Insider's model, the Royals (+1.5) are predicted to cover the line 59% of the time, while the 9-run over/under is expected to is considered an equal 50-50 chance of hitting.
Royals vs Mariners: Betting Tips
- Head to Head: Kansas City at $2.05 with TAB
- Line: Royals +1.5 at $1.67 with TAB
- Total Runs: Under 9 at $1.91 with TAB
These Royals vs Mariners betting tips are based on market-leading modelling and wagering intelligence to help you place better bets with your chosen online bookie.
While the Mariners have a higher chance of winning the game, betting on the Royals to win is our recommended option due to the edge found when comparing our data-led probabilities to the odds currently available.
Taking advantage of the edges seen on Stats Insider is one of the keys to being profitable in the long run.
Royals vs Mariners: Prediction
Stats Insider provides full betting coverage of the Kansas City vs Seattle game on Friday, including data-driven predictions and expert tips.
Our model updates regularly, so keep checking this article for the latest betting analysis before the Kansas City vs Seattle game.
As always, see Stats Insider's Best Bets for betting tips for every MLB game, plus predictions for a wide range of other sports.
Royals vs Mariners: Essential Details
The game between the Royals and Mariners at Kauffman Stadium is scheduled to begin at 4:10am AEST on Friday.
- Teams: Kansas City Royals vs Seattle Mariners
- Date: Friday 19 September 2025
- Time: 4:10am AEST
- Venue: Kauffman Stadium
All dates and times in this article are in Australian Eastern Standard Time (AEST), unless otherwise noted.
Conclusion
Our Kansas City vs Seattle predictions are based on 10,000 data-driven simulations of the game, carefully curated by our team of experienced data scientists and analysts. We use the latest in predictive analytics technology and machine learning to ensure our MLB tips are trustworthy and reliable, giving you the confidence to make informed decisions.
If you decide to use our predictions for betting purposes, it's important to gamble responsibly and know when to stop. For free and confidential support, call 1800 858 858 or visit gamblinghelponline.org.au.
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