Chicago White Sox vs Seattle Mariners Prediction, 5/18/2026 MLB Picks, Best Bets & Odds

Game: Chicago White Sox vs Seattle Mariners

Date: Monday, May 18, 2026

Location: T-Mobile Park in Seattle, WA

TV: MLB.TV

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

The Chicago White Sox (23-22) are traveling to T-Mobile Park on Monday where they will meet the Seattle Mariners (22-25). The odds on this game have the White Sox at +110 and the Mariners open at -130. The total has been set at 8.5. The pitchers expected to start will be Noah Schultz and Bryan Woo.

The White Sox have tallied 52 doubles as a team and have smacked 59 baseballs out of the stadium. Chicago has a slugging % of .401 and have been called out on strikes 405 times, while drawing a walk on 171 occasions. As a team, the Chicago White Sox are scoring 4.4 runs/g, which ranks them 13th in MLB. They have 184 runs batted in and 337 hits on the season, and their average at the plate sits at .234. They have a total of 194 runs while holding a team OBP of .324.

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The White Sox have a team earned run average of 4.35 for the year (21st in MLB), and the staff has struck out 351 batters. White Sox pitchers have given up 45 long balls and 207 runs (22nd in baseball). Their pitching staff has walked 181 opposing hitters and their FIP sits at 4.36 as a unit over the course of the season. Chicago has relinquished 355 base hits (8.2 per 9 innings) and also 189 earned runs. They have accrued a K/BB ratio of 1.94 and their pitching staff holds a WHIP of 1.37.

White Sox relief pitchers have entered the contest with runners on base 52 times as well as having 45 appearances in high leverage situations. The relief pitchers have tallied 16 holds on the year (25th in the league). The White Sox relievers have a save percentage of 60.0% and have stepped onto the mound in 41 save situations. They have earned 15 saves on the campaign and have blown 10 out of their 25 chances to get a save. The bullpen pitchers have inherited 79 base runners this season and 31.6% of those runners crossing the plate. The White Sox have sent 155 relievers to the mound on the year.

The Chicago White Sox have notched a total of 1,172 putouts on the campaign, in addition to 402 assists and 21 errors. Their fielding percentage is holding at .987 which ranks 15th in pro baseball, and they have turned 33 double plays. The White Sox have turned 70.4% of balls in play into outs out of their 3,516 innings on the field, which ranks them 13th in MLB.

Schultz has pitched in 29 innings and has accounted for 26 K's so far in his MLB career. His ERA is 4.95 (16 earned runs allowed) and his WHIP is 1.375. He has surrendered 19 base hits (5.9 hits per 9 innings) and has 21 free passes. Schultz (2-2 win-loss mark in his career) has earned a FIP of 4.87 while going up against 125 opposing batters during his time in the major leagues.

The Mariners have a team SLG% of .383 and they have an average of 4.15 runs per contest (21st in baseball). They have 62 doubles, while taking a walk 179 times and putting up 191 runs. Seattle has 53 HRs so far this season and 186 RBIs. They have been called out on strikes on 416 occasions (3rd in the league) and have earned 353 base hits. The Seattle Mariners have an on-base percentage of .321 and a team batting average of .232 so far this year.

The Mariners hold a team WHIP of 1.227 and have a FIP of 3.65 as a pitching staff so far this year. They are currently ranked 25th in baseball as a pitching staff in total hits given up with 388. The Seattle pitching staff have conceded 177 runs over the course of the season and come in with a team ERA of 3.59 (163 earned runs yielded). Their K/BB ratio sits at 8.60 (391 strikeouts against 114 bases on balls). They have conceded 45 homers and they concede 3.89 runs per 9 innings (6th in MLB).

They are ranked 14th in the league with a save rate of 63.2%, and they have sent 144 bullpen pitchers to the hill this year. Their relievers have taken the field 59 times in high leverage situations and on 35 occasions with runners on base. Sitting with 43 save situations, the Mariners have 24 holds and also 7 blown saves. Seattle has called on relievers to step onto the mound in 19 save chances and they have recorded 12 saves. Seattle relief pitchers have an inherited score percentage of 13.0% out of their 46 inherited base runners.

The Seattle Mariners have turned 44 double plays and have a fielding percentage of .990 (5th in the majors). The Mariners have racked up 386 assists, 17 errors and have accumulated 1,228 putouts over the course of the season. In their 3,684 innings played, the Mariners have earned a defensive efficiency of 68.8% (25th in MLB).

Woo (31-17 mark in his career) has a 3.29 earned run average and has given up 7.0 hits per 9 innings. He has a strikeout to walk ratio of 4.88 and he has faced 1,785 opposing hitters so far in his MLB career. He has allowed a total of 164 earned runs while earning a WHIP of 0.984 and being the owner of a FIP of 3.2. So far in his MLB career, Woo has allowed 351 hits while he has accumulated 439 K's in 448 innings pitched.

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

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

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