Mariners vs White Sox Prediction, Odds, Moneyline, Spread & Over/Under for May 20

Odds updated as of 7:11 a.m.

The Tuesday schedule in MLB includes a matchup between the Seattle Mariners and the Chicago White Sox.

Before you do any MLB betting on this game at FanDuel Sportsbook, here's everything you need to know.

Mariners vs White Sox Game Info

• Seattle Mariners (27-19) vs. Chicago White Sox (14-34)
• Date: Tuesday, May 20, 2025
• Time: 7:40 p.m. ET
• Venue: Rate Field -- Chicago, Illinois
• Coverage: CHSN and ROOT Sports NW

Mariners vs White Sox Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-172) | CHW: (+144)
• Spread: SEA: -1.5 (-104) | CHW: +1.5 (-115)
• Total: 8 -- Over: (-122) | Under: (-100)

Mariners vs White Sox Probable Starting Pitchers

Probable Pitchers: TBA (Mariners) vs Bryse Wilson (White Sox) - 0-2, 0.00 ERA

Wilson (0-2) gets the start for the White Sox. As of this writing, there's been no pitching decision announced by the Mariners. The White Sox have a 2-2-0 ATS record in Wilson's four starts that had a set spread. The White Sox have been the moneyline underdog in four of Wilson's starts this season, and they went 2-2 in those matchups.

Mariners vs White Sox Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (63.1%)

Mariners vs White Sox Moneyline

• Seattle is a -172 favorite on the moneyline, while Chicago is a +144 underdog at home.

Mariners vs White Sox Spread

• The White Sox are +1.5 on the run line against the Mariners. The White Sox are -115 to cover, and the Mariners are -104.

Mariners vs White Sox Over/Under

• The over/under for Mariners-White Sox on May 20 is 8. The over is -122, and the under is -100.

Bet on Seattle Mariners vs. Chicago White Sox on FanDuel today!

Mariners vs White Sox Betting Trends

• The Mariners have won in 16, or 59.3%, of the 27 contests they have been named as odds-on favorites in this year.
• This season Seattle has been victorious four times in seven chances when named as a favorite of at least -172 on the moneyline.
• Contests with the Mariners have gone over the total set by sportsbooks in 25 of 46 chances this season.
• The Mariners have an against the spread mark of 24-22-0 in 46 games with a line this season.
• The White Sox have won 13 of the 46 games they were listed as the moneyline underdog this season (28.3%).
• Chicago is 6-25 (winning only 19.4% of its games) when it has played as a moneyline underdog of +144 or longer.
• The White Sox have played in 47 games with a set over/under, and have combined with their opponents to go over the total 21 times (21-23-3).
• The White Sox have a 23-24-0 record against the spread this season (covering 48.9% of the time).

Mariners Player Leaders

• Cal Raleigh leads Seattle with 40 hits, batting .241 this season with 23 extra-base hits. He has an on-base percentage of .362 and a slugging percentage of .560.
• Among qualifying hitters in baseball, his batting average ranks 101st, his on-base percentage ranks 47th, and he is 11th in slugging.
• Jorge Polanco is batting .314 with six doubles, 10 home runs and eight walks, while slugging .619 with an on-base percentage of .359.
• Julio Rodriguez has hit eight homers with a team-high .412 SLG this season.
• Rodriguez has recorded at least one base hit in seven straight games. During his last 10 games he is batting .262 with a double, two home runs and eight RBIs.
• Randy Arozarena has six home runs, 21 RBI and a batting average of .236 this season.

White Sox Player Leaders

• Miguel Vargas has racked up 39 hits with a .321 on-base percentage, leading the White Sox in both statistics. He's batting .239 and slugging .411.
• Including all qualified hitters in the majors, he is 109th in batting average, 95th in on-base percentage and 91st in slugging percentage.
• Luis Robert has four doubles, five home runs and 21 walks while hitting .186. He's slugging .308 with an on-base percentage of .281.
• Including all qualified players, he ranks 159th in batting average, 137th in on-base percentage and 156th in slugging percentage.
• Chase Meidroth has three doubles, a home run and 12 walks while batting .286.
• Andrew Vaughn is batting .185 with eight doubles, five home runs and seven walks.

Mariners vs White Sox Head to Head

• 5/19/2025: 5-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -188, Underdog Moneyline: +158)
• 7/28/2024: 6-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 7/27/2024: 6-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 7/26/2024: 10-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -174, Underdog Moneyline: +146)
• 6/13/2024: 3-2 CHW (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 6/12/2024: 2-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -260, Underdog Moneyline: +215)
• 6/11/2024: 4-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -184, Underdog Moneyline: +154)
• 6/10/2024: 8-4 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -215, Underdog Moneyline: +180)
• 8/23/2023: 5-4 CHW (Favorite: Mariners, Spread: -1.5, Total: 9.5, Favorite Moneyline: -240, Underdog Moneyline: +198)
• 8/22/2023: 6-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -154, Underdog Moneyline: +130)

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