Mariners vs Brewers Prediction, Odds, Moneyline, Spread & Over/Under for July 21

Odds updated as of 12:11 p.m.

The Seattle Mariners will take on the Milwaukee Brewers in MLB action on Monday.

Here's everything you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Mariners vs Brewers Game Info

• Seattle Mariners (53-46) vs. Milwaukee Brewers (59-40)
• Date: Monday, July 21, 2025
• Time: 9:40 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: ROOT Sports NW and FDSWI

Mariners vs Brewers Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-122) | MIL: (+104)
• Spread: SEA: -1.5 (+188) | MIL: +1.5 (-230)
• Total: 7 -- Over: (-110) | Under: (-110)

Mariners vs Brewers Probable Starting Pitchers

Probable Pitchers: George Kirby (Mariners) - 4-4, 4.50 ERA vs Brandon Woodruff (Brewers) - 1-0, 2.61 ERA

The Mariners will call on George Kirby (4-4) versus the Brewers and Brandon Woodruff (1-0). When Kirby starts, his team is 3-6-0 against the spread this season. Kirby's team has a record of 4-3 this season when he starts and they are the favorite on the moneyline. Woodruff has started two games with set spreads, and the Brewers went 1-1-0. The Brewers were named the moneyline underdog for one Woodruff start this season -- they won.

Mariners vs Brewers Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (53.8%)

Mariners vs Brewers Moneyline

• Seattle is a -122 favorite on the moneyline, while Milwaukee is a +104 underdog on the road.

Mariners vs Brewers Spread

• The Brewers are at +1.5 on the runline against the Mariners. The Brewers are -230 to cover the spread, and the Mariners are +188.

Mariners vs Brewers Over/Under

• An over/under of 7 has been set for Mariners-Brewers on July 21, with the over being -110 and the under -110.

Bet on Seattle Mariners vs. Milwaukee Brewers on FanDuel today!

Mariners vs Brewers Betting Trends

• The Mariners have been chosen as favorites in 62 games this year and have walked away with the win 35 times (56.5%) in those games.
• Seattle has a record of 29-19 in contests when bookmakers favor them by -122 or more on the moneyline.
• Contests with the Mariners have gone over the total set by sportsbooks in 53 of 96 chances this season.
• The Mariners are 42-54-0 against the spread in their 96 games that had a posted line this season.
• The Brewers have been the underdog on the moneyline 48 total times this season. They've finished 25-23 in those games.
• Milwaukee has an 18-17 record (winning 51.4% of its games) when it has played as a moneyline underdog of +104 or longer.
• The Brewers have played in 97 games with an over/under set, and have combined with opponents to go over the total 43 times (43-53-1).
• The Brewers have covered 55.7% of their games this season, going 54-43-0 against the spread.

Mariners Player Leaders

• Cal Raleigh leads Seattle in total hits (92) this season while batting .256 with 54 extra-base hits. He has an on-base percentage of .371 and a slugging percentage of .617.
• Among qualified hitters in baseball, he is 87th in batting average, 20th in on-base percentage, and second in slugging.
• Julio Rodriguez is hitting .252 with 17 doubles, three triples, 14 home runs and 30 walks, while slugging .412 with an on-base percentage of .315.
• Among qualifying batters, he is 92nd in batting average, 110th in on-base percentage and 92nd in slugging percentage.
• Rodriguez has picked up at least one hit in two games in a row. In his last five games he is batting .400 with two doubles, two home runs, five walks and five RBIs.
• Randy Arozarena has collected 91 base hits, an OBP of .359 and a slugging percentage of .468 this season.
• J.P. Crawford has a slash line of .288/.388/.391 this season and a team-best OPS of .779.

Brewers Player Leaders

• Jackson Chourio has accumulated a team-high slugging percentage (.455) while leading the Brewers in hits (110). He's batting .265 and with an on-base percentage of .297.
• Including all the qualifying hitters in MLB, his batting average is 69th, his on-base percentage is 134th, and he is 57th in slugging.
• Chourio hopes to build on a 14-game hitting streak in this matchup. In his last 10 games he is hitting .317 with a double, two home runs, a walk and 10 RBIs.
• Christian Yelich has 11 doubles, 19 home runs and 37 walks while batting .259. He's slugging .452 with an on-base percentage of .337.
• Including all qualified players, he is 76th in batting average, 66th in on-base percentage and 58th in slugging percentage.
• Brice Turang is batting .275 with 14 doubles, six home runs and 40 walks.
• William Contreras is batting .243 with 17 doubles, six home runs and 56 walks.

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