Baltimore Orioles vs Seattle Mariners Prediction, 6/17/2026 MLB Picks, Best Bets & Odds

Game: Baltimore Orioles vs Seattle Mariners

Date: Wednesday, June 17, 2026

Location: T-Mobile Park in Seattle, WA

TV: MLB.TV

Odds/Point Spread: Baltimore (+110) Seattle (-130)

T-Mobile Park is the site where the Seattle Mariners (37-36) will attempt to beat the Baltimore Orioles (34-39) on Wednesday. The odds on this game have Baltimore at +110 and Seattle is coming in at -130. The over/under is 8. The starting pitchers are Kyle Bradish and George Kirby.

As a unit, the Baltimore Orioles are putting up 4.7 runs per contest, which ranks them 8th in the league. They are sitting with 343 runs scored while holding a team on-base percentage of .324. The Orioles have accrued 119 two-baggers as a team and have hit 86 baseballs out of the stadium. They have 333 RBI's and 592 base knocks so far this season, while their average at the plate is at .243. Baltimore has a slugging % of .404 and have been called out on strikes 652 times, while drawing a walk on 282 occasions.

Get all of our MLB Expert Picks

The Orioles have an earned run average of 4.59 for the season (23rd in the league), and the staff has rung up 559 hitters. Orioles pitchers have surrendered 86 home runs and 376 runs in total (26th in MLB). Their pitching staff has walked 256 opposing hitters and their FIP sits at 4.39 as a team over the course of the season. Baltimore has relinquished 652 hits (9.1 per 9 innings) as well as 330 earned runs. They have a strikeout to walk ratio of 2.18 and their pitching staff holds a collective WHIP of 1.40.

The Orioles have sent 244 relief pitchers to the hill this season. The relief pitchers have inherited 94 runners for the year and 22.3% of them ended up scoring. The relief pitchers are sitting with 36 holds over the course of the season (16th in the league). Orioles relief pitchers have gone to the mound with runners on 66 times in addition to having 65 appearances in high leverage situations. They have 16 saves this year and have blown 7 of 23 save opportunities. The Orioles relievers have accumulated a save rate of 69.6% and have entered the game in 60 save situations.

The Baltimore Orioles have earned 1,942 putouts this year, in addition to 641 assists and 41 errors. Their fielding rate is at .984 which ranks 21st in professional baseball, and they have turned 56 double plays. The Orioles have turned 68.7% of balls hit into play into outs out of 5,826 innings, which has them sitting 28th in the majors.

Bradish has taken the mound for 430 innings and has accounted for 452 K's so far in his MLB career. His earned run average is 3.62 (173 earned runs allowed) and he has a career WHIP of 1.234. He has allowed 377 base knocks (7.9 hits per 9 innings) and has 154 free passes. Bradish (22-22 career record) has a FIP of 3.56 and he has faced 1,792 batters in the majors.

The Seattle Mariners have an on-base percentage of .316 in addition to a team batting average of .237 on the season. They have been called out on strikes on 621 occasions (9th in MLB) and have 578 base hits. Seattle has recorded 94 home runs on the campaign to go along with 302 RBIs. The Mariners have a slugging percentage of .397 and they are scoring 4.26 runs per contest (18th in the league). They have notched 95 doubles, while taking a walk 246 times and recording 311 runs.

The Seattle pitching staff have given up 291 runs so far this year while holding a team ERA of 3.69 (266 earned runs given up). They have yielded 72 homers and they concede 4.04 runs per 9 innings (5th in MLB). The Mariners are sitting with a team WHIP of 1.200 in addition to having a FIP of 3.67 as a squad this year. Their K/BB ratio comes in at 8.70 (625 strikeouts vs 190 walks). They are sitting at 17th in the league as a staff in total hits given up with 589.

Seattle relievers hold an inherited score rate of 21.1% of 76 inherited base runners. Their relievers have come in 85 times in high leverage situations and on 57 occasions with base runners. With 70 save situations, the Mariners have earned 40 holds in addition to 13 blown saves. They are ranked 22nd in MLB with a save percentage of 55.2%, and they have dispatched 223 relief pitchers onto the field on the season.

Out of their 5,841 innings on the field, the Mariners are sitting with a defensive efficiency of 69.6% (21st in baseball). The Seattle Mariners have gotten 68 double plays and hold a fielding percentage of .987 (13th in professional baseball). The Mariners have recorded 593 assists, 34 errors and have a total of 1,947 putouts so far this year.

During his MLB career, Kirby has conceded 705 base knocks while accumulating 695 strikeouts in 721 frames. He has given up a total of 292 earned runs while holding a WHIP of 1.136 and having a FIP of 3.6. His K/BB ratio is 6.10 and he has faced 2,951 hitters so far in his career. Kirby (50-40 career record) has a 3.64 ERA while giving up 8.8 hits per 9 innings.

Who will win tonight's MLB game against the spread or moneyline?

Guy Bruhn's Pick: Take Seattle (-130)

Get $60 worth of FREE premium member picks. No Obligation. No Salesman. No Credit Card. Fast Sign up with Instant Access Click Here

Get MLB picks on every single game, or if you want our very best bets by the experts, sign up for your free $60 account with a guarantee.