Seattle Mariners vs Philadelphia Phillies Prediction, 8/18/2025 MLB Picks, Best Bets & Odds

Game: Seattle Mariners vs Philadelphia Phillies

Date: Monday, August 18, 2025

Location: Citizens Bank Park in Philadelphia, PA

TV: NBC Sports Philadelphia

Odds/Point Spread: Seattle (+150) Philadelphia (-182)

The Seattle Mariners (67-55) are en route to Citizens Bank Park on Monday where they will try to defeat the Philadelphia Phillies (69-52). The moneyline on this game has the Mariners at +150 while the Phillies are sitting at -182. The total is 8. The pitchers taking the mound are Logan Gilbert and Ranger Suarez.

Seattle is slugging .408 and have been rung up 1,080 times, while being walked on 413 occasions. They have accumulated 531 RBI's and 1,007 hits for the year, while their team batting average is .243. The Mariners have compiled 157 doubles as a team and have hit 172 baseballs out of the stadium. They are sitting with 554 runs scored and hold an on-base percentage of .319. As a team, the Seattle Mariners are scoring 4.5 runs per outing, which puts them at 11th in baseball.

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Their strikeout to walk ratio is 2.83 and their pitching staff has a collective WHIP of 1.23. Mariners pitchers have allowed 141 long balls and also 519 total runs (15th in the league). Seattle has allowed 989 hits (8.0 per 9 innings) and also 465 earned runs. The Mariners have a team earned run average of 3.78 so far this year (10th in the league), and their staff has struck out 1,040 hitters. They have walked 368 opposing batters and their FIP is 4.04 as a unit on the year.

The Mariners bullpen have recorded a save percentage of 61.5% and have come into the game in 120 save situations. The relief pitchers have inherited 111 runners on the year with 26.1% of those players crossed home plate. Mariners pitchers have come into the game with players on base 103 times as well as having 173 appearances in high leverage situations. The Mariners have sent 409 relief pitchers to the hill so far this season. The relief pitchers have racked up 68 holds on the campaign (15th in MLB). They have compiled 32 saves over the course of the season and have blown 20 of 52 save opportunities.

The Mariners have converted 71.0% of baseballs in play into outs out of their 9,957 innings on the diamond, which has them sitting at 7th in professional baseball. The San Francisco Giants have amassed 3,319 putouts over the course of the season, in addition to 1,027 assists and 50 errors. Their fielding rate is holding at .989 which puts them in 4th in baseball, and have a total of 91 double plays.

Gilbert has taken the ball for 793 innings and has tallied 835 punch outs during his pro baseball career. His ERA is 3.57 (315 earned runs allowed) and he has a career WHIP of 1.055. He has surrendered 664 hits (7.5 hits per nine innings) and has 173 free passes. Gilbert (44-34 career record) has a FIP of 3.52 while going up against 3,203 opposing batters in the major leagues.

The Phillies have a team slugging percentage of .414 and they score 4.61 runs per contest (9th in baseball). They have put up 200 two-baggers, while getting a free base 397 times as well as earning 558 runs. Philadelphia has accumulated 143 home runs on the season to go along with 535 RBIs. They have struck out on 979 instances (19th in MLB) and have totaled 1,039 base knocks. The Philadelphia Phillies have an OBP of .323 and a team batting average of .253 this season.

The Phillies have a team WHIP of 1.234 with a FIP of 3.68 as a team for the year. They are sitting at 20th in MLB as a pitching staff in total hits given up with 1,000. The Philadelphia pitching staff have conceded 479 runs on the season and come in with a team ERA of 3.73 (446 earned runs relinquished). Their strikeout to walk ratio is 9.20 (1,099 strikeouts against 327 walks). They have given up 132 dingers and they allow 4.01 runs per 9 innings (5th in baseball).

Philadelphia has called on relievers to step onto the hill in 50 save opportunities and they have tallied 32 saves. They rank 13th in MLB holding a save rate of 64.0%, and they have sent 368 relievers to the hill so far this year. Their bullpen pitchers have taken the field 121 times in high leverage situations in addition to 76 occasions with base runners. Philadelphia relievers hold an inherited score rate of 33.0% out of their 112 inherited base runners. Sitting with 107 save situations, the Phillies have recorded 56 holds in addition to 18 blown saves.

Out of their 9,678 innings played, the Phillies have a defensive efficiency of 69.2% (22nd in MLB). The Philadelphia Phillies have turned 77 double plays and own a fielding percentage of .990 (3rd in baseball). The Phillies have racked up 1,047 assists, 45 errors and have accumulated 3,226 putouts this season.

In his pro baseball career, Suarez has surrendered 680 hits while he has earned 655 K's in 716 innings pitched. Suarez (49-35 career win-loss mark) holds a 3.40 earned run average while allowing 8.5 hits per nine innings. He has allowed 271 earned runs while holding a WHIP of 1.272 and being the owner of a FIP of 3.4. He has a strikeout to walk ratio of 2.84 and he has gone up against 3,011 opposing batters in his pro baseball career.

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

Tony Sink's Pick: Take Seattle (+150)

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