Boston Red Sox vs Seattle Mariners Prediction, 6/16/2025 MLB Picks, Best Bets & Odds
Game: Boston Red Sox vs Seattle Mariners
Date: Monday, June 16, 2025
Location: T-Mobile Park in Seattle, WA
TV: Root Sports Northwest
Odds/Point Spread: Boston (+102) Seattle (-122)
The Seattle Mariners (33-34) will try to defeat the Boston Red Sox (34-36) at T-Mobile Park on Monday. The odds on this game have Boston at +102 while Seattle is opening at -122. The over/under is 9. The starting pitchers will be Lucas Giolito and Logan Gilbert.


The Red Sox have earned 136 two-baggers as a squad and have hit 88 baseballs out of the park. Boston has a slugging percentage of .426 and have struck out 650 times, while taking a walk on 241 occasions. As a unit, the Boston Red Sox are notching 4.9 runs per game, which puts them at 5th in baseball. They have accounted for 331 runs batted in as well as 623 base knocks for the season, while their average at the plate is .255. They have accounted for 345 runs scored and have an OBP of .328.
Get all of our MLB Expert Picks
The Red Sox hold a team ERA of 4.08 on the season (21st in MLB), and they have rung up 587 batters. Red Sox pitchers have relinquished 70 long balls in addition to 327 total runs (23rd in the league). They have walked 234 batters and their FIP sits at 3.92 as a team on the campaign. Boston has surrendered 611 hits (8.7 per 9 innings) as well as 286 earned runs. They have earned a strikeout to walk ratio of 2.51 and the pitching staff has recorded a WHIP of 1.34.
The Red Sox relief pitchers have a save rate of 54.8% and have stepped onto the mound in 65 save situations. The relief pitchers have inherited 92 runners for the season with 31.5% of those runners crossed the plate. Red Sox bullpen pitchers have come into the game with players on base 70 times in addition to having 91 appearances in high leverage situations. The Red Sox have sent 232 relief pitchers to the hill on the year. The relievers are sitting with 32 holds over the course of the season (26th in the league). They have 17 saves this season and have not converted 14 of 31 chances to save the game.
The Baltimore Orioles are sitting with 1,891 putouts so far this season, as well as 637 assists and 61 errors. Their fielding percentage is holding steady at .976 which has them sitting 30th in the majors, and they have turned 62 double plays. The Red Sox have converted 67.5% of baseballs in play into outs out of their 5,673 innings, ranking them 29th in professional baseball.
Giolito (63-63 win-loss record in his career) has earned a FIP of 4.41 while he has faced 4,433 hitters in the majors. He has surrendered 933 base hits (8.0 hits per nine innings) with 399 walks. His ERA is 4.47 (523 earned runs allowed) and his WHIP is 1.266. Giolito has taken the ball for 1,052 innings and has racked up 1,108 strikeouts in his career.
Seattle is sitting with 87 home runs so far this year as well as 282 RBIs. They have hit 85 doubles, while walking 239 times as well as recording 291 runs. The Seattle Mariners hold a team on-base percentage of .320 and a team batting average of .241 this season. The Mariners hold a team SLG% of .396 and they score 4.34 runs per game (14th in baseball). They have been rung up on 601 occasions (7th in baseball) and have earned 553 hits.
The Seattle pitching staff have allowed 305 runs so far this year while holding an ERA of 4.06 (274 earned runs yielded). They have relinquished 78 home runs and they relinquish 4.52 runs per 9 innings (20th in MLB). The Mariners have a WHIP of 1.333 in addition to having a FIP of 4.12 as a staff for the season. Their strikeout to walk ratio is 8.10 (544 strikeouts vs 209 walks). They are sitting at 25th in baseball as a staff in total hits conceded with 600.
With 65 save situations, the Mariners have 34 holds and also 12 blown saves. Seattle has called on relievers to step onto the hill in 31 save chances and they have converted 19 saves. Their bullpen pitchers have stepped onto the mound 95 times in high leverage situations in addition to 51 occasions with base runners. Seattle relief pitchers hold an inherited score percentage of 25.9% out of their 58 inherited base runners. They are currently ranked 19th in the league holding a save percentage of 61.3%, and they have sent 228 relief pitchers to the mound on the campaign.
The Seattle Mariners have gotten 56 double plays and have notched a fielding percentage of .989 (5th in the majors). The Mariners have 585 assists, 27 errors and have accumulated 1,821 putouts on the season. In 5,463 innings on the diamond, the Mariners have earned a efficiency on defense of 69.0% (21st in the majors).
During his career, Gilbert has allowed 617 base knocks while he has tallied 755 strikeouts in 734 frames. Gilbert (42-31 mark in his career) has earned a 3.55 earned run average and has surrendered 7.6 hits per nine innings. He has surrendered 290 earned runs while holding a WHIP of 1.053 and a FIP of 3.5. He has a K/BB ratio of 4.84 and he has gone up against 2,959 opposing hitters so far in his pro baseball career.
Who will win tonight's MLB game against the spread or moneyline?
Josh Schonwald's Pick: Take Boston (+102)
Get $60 worth of FREE premium member picks. No Obligation. No Salesman. No Credit Card. Fast Sign up with Instant Access Click Here
Get all of Today's Free MLB Picks
Get all of Today's Expert MLB Picks
Additional Resources:
Seattle Mariners - Twitter
Boston Red Sox - Twitter