Seattle Mariners vs. Baltimore Orioles MLB Picks and Predictions: June 17, 2026
Written by: Justin Carlucci
Last Update: Wed Jun 17, 2026, 1:12 pm ET
Read Time: 5 minutes
mlb
Spread
Total
Moneyline
+1.5
-165
7.5
-110u
+133
Spread
Total
Moneyline
-1.5
160
7
+100o
-130
We've got a late-night American League hammer on Wednesday, as the Baltimore Orioles travel to the great state of Washington to take on the Seattle Mariners at T-Mobile Park. Let's dive into my best MLB pick for this Kyle Bradish vs. George Kirby duel!
Check out the best odds on the market at our top online sportsbooks.
Seattle Mariners vs. Baltimore Orioles MLB Betting Insights
We know the deal with T-Mobile Park. It's a tough place to hit and a great place to pitch. It's no surprise the total here is set at 7.5 runs. According to Baseball Savant, T-Mobile Park ranks 28th in park factors for hitting, making it one of the biggest downgrades to offensive production in all of baseball.
But the real story here isn't just the ballpark — it's the splits, and they are fascinating.
The Orioles have had an overall disappointing season, but they actually rank second in baseball in weighted runs created plus against right-handed pitching at home. The problem? Pick them up and move them on the road, and they tumble all the way down to 21st. Now you're dropping them into one of the worst-hitting environments in baseball. That's a brutal combination for an offense that's already been inconsistent away from Camden Yards.
The Mariners flip the script entirely. Seattle ranks first in baseball in weighted runs created plus against right-handed pitching at home this season. And they're doing it at T-Mobile Park, one of the toughest places to hit in the sport. That number is going to look even more impressive when you factor in that Cal Raleigh and J.P. Crawford have both returned from the injured list this week. The Mariners are about to be rolling on all cylinders.
Matchup Information — Orioles vs. Mariners — June 17
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Venue: T-Mobile Park (Seattle, WA)
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Date: Wednesday, June 17, 2026
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First Pitch: 9:40 PM ET
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Broadcast: MASN / Mariners.TV
Orioles vs. Mariners Pitching Matchup
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Baltimore Orioles: RHP Kyle Bradish (3-7, 4.30 ERA, 73 SO)
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Seattle Mariners: RHP George Kirby (5-6, 4.07 ERA, 74 SO)
Orioles vs. Mariners Betting Odds
Odds courtesy of our friends at BetOnline:
Run Line
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Baltimore Orioles +1.5 (-175)
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Seattle Mariners -1.5 (+153)
Moneyline
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Baltimore Orioles +127
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Seattle Mariners -140
Total
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Over 7.5 (-110)
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Under 7.5 (-110)
Seattle Mariners vs. Baltimore Orioles MLB Picks
Cal Raleigh has returned to the M's lineup.
Orioles vs. Mariners Prediction: Mariners Win
Best Bet: Seattle Mariners Moneyline (-140) + Run Line (-1.5 / +153) — BetOnline.ag Sportsbook
The splits are what really lock this in for me, and the personnel piece makes it even better.
The Mariners' left-handed mashers could have a field day against the right-handed Bradish. Dominic Canzone has been sensational this season in a strong-side platoon role, and his advanced metrics are eye-popping. According to Baseball Savant, he ranks in the 94th percentile in barrel rate, 87th percentile in hard-hit rate, and 96th percentile in expected slugging percentage. He has 10 home runs in 181 at-bats and is slugging .559 on the season. That is a dangerous hitter getting a favorable matchup at home in a park that — despite its pitcher-friendly reputation — clearly hasn't slowed this lineup down against righties.
Luke Raley has also revitalized his career in Seattle and adds another lefty threat to the mix. And with Cal Raleigh and J.P. Crawford both back from the injured list this week, this lineup is as complete as it's been all season.
Kyle Bradish has had a tough year, and the under-the-hood stuff is labeling him a league-average pitcher right now. George Kirby, meanwhile, is still an elitre ground-ball pitcher who also ranks 87th percentile in chase rate, so there is also some upside for him to collect some swings and misses.
I'm splitting a unit here — half on the moneyline, half on the run line to get some value.
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Carlucci spent nearly a decade as a reporter, editor, and on-air talent in the Poconos. His transition into the fantasy sports and sports betting industries began in 2016 with roles at Daily Fantasy Insider and Daily Roto Sharks, which led to positions at Better Collective (RotoGrinders). During this period, his work gained national recognition through regular contributions to the New York Post and featured appearances on SiriusXM Fantasy Sports Radio. Carlucci has also contributed to Fantasy Alarm and most recently served as Managing Editor at Third Planet Media (Props.com), where he led content strategy, editorial direction, and served as the forward-facing voice of the brand through live streams and podcasts. You can also find his work at Matthew Berry's Fantasy Life and Hard Rock Digital. He's for some reason a die-hard Titans and 76ers fan and has developed trust issues from "trusting the process." Follow him on X @ThejCarlucci!
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