Mariners vs Royals Prediction, Odds, Moneyline, Spread & Over/Under for May 1

Odds updated as of 5:14 a.m.

The Friday schedule in MLB includes a matchup between the Seattle Mariners and the Kansas City Royals.

We've got you covered, in terms of the most important info about this game before you take a look at the MLB odds and spreads on FanDuel Sportsbook.

Mariners vs Royals Game Info

• Seattle Mariners (16-16) vs. Kansas City Royals (12-19)
• Date: Friday, May 1, 2026
• Time: 9:45 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Apple TV+

Mariners vs Royals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-156) | KC: (+132)
• Spread: SEA: -1.5 (+146) | KC: +1.5 (-176)
• Total: 7 -- Over: (-110) | Under: (-110)

Mariners vs Royals Probable Starting Pitchers

Probable Pitchers: Bryan Woo (Mariners) - 1-2, 3.86 ERA vs Cole Ragans (Royals) - 1-4, 5.00 ERA

The Mariners will give the nod to Bryan Woo (1-2, 3.86 ERA), who is eyeing win No. 2 on the season, and the Royals will counter with Cole Ragans (1-4, 5.00 ERA). Woo and his team have a record of 3-3-0 against the spread when he starts. Woo's team has been victorious in 50% of the games he's started as the moneyline favorite with a record of 3-3. The Royals have a 1-4-0 record against the spread in Ragans' starts. The Royals were the underdog on the moneyline for two Ragans starts this season -- they lost both.

Mariners vs Royals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (55.3%)

Mariners vs Royals Moneyline

• Seattle is a -156 favorite on the moneyline, while Kansas City is a +132 underdog on the road.

Mariners vs Royals Spread

• The Royals are +1.5 on the spread (-176 to cover), and Seattle is +146 to cover the runline.

Mariners vs Royals Over/Under

• The over/under for Mariners-Royals on May 1 is 7. The over is -110, and the under is -110.

Bet on Seattle Mariners vs. Kansas City Royals on FanDuel today!

Mariners vs Royals Betting Trends

• The Mariners have won in 15, or 53.6%, of the 28 contests they have been named as odds-on favorites in this year.
• This year Seattle has won five of 10 games when listed as at least -156 on the moneyline.
• The Mariners and their opponents have gone over in 15 of their 32 games with a total set by sportsbooks this season.
• The Mariners are 12-20-0 against the spread in their 32 games that had a posted line this season.
• The Royals have won 21.4% of the games this season they were the underdog on the moneyline (3-11).
• Kansas City has played as a moneyline underdog of +132 or longer in just two games this season, which it lost both.
• The Royals have combined with opponents to go over the total 12 times this season for a 12-17-0 record against the over/under.
• The Royals have a 12-17-0 record against the spread this season (covering 41.4% of the time).

Mariners Player Leaders

• Randy Arozarena leads Seattle with 33 hits and an OBP of .381, plus a team-best slugging percentage of .439. He's batting .289.
• Among qualified hitters in the majors, he ranks 34th in batting average, 24th in on-base percentage, and 65th in slugging.
• Cole Young is batting .286 with four doubles, a triple, three home runs and 11 walks, while slugging .420 with an on-base percentage of .357.
• Among qualifying hitters, he is 38th in batting average, 52nd in on-base percentage and 82nd in slugging percentage.
• Young has picked up a hit in two games in a row. In his last five games he is hitting .556 with two doubles, a home run and seven RBIs.
• Cal Raleigh has 24 hits this season and has a slash line of .192/.275/.392.
• Josh Naylor is batting .212 with a .286 OBP and 15 RBI for Seattle this season.

Royals Player Leaders

• Bobby Witt Jr. has racked up an on-base percentage of .367 and a slugging percentage of .430. Both lead the Royals. He's batting .289.
• Including all qualified hitters, he is 34th in batting average, while his on-base percentage ranks 38th and he is 72nd in slugging.
• Maikel Garcia is hitting .274 with eight doubles, a triple, three home runs and 12 walks. He's slugging .442 with an on-base percentage of .341.
• Including all qualified hitters, he ranks 51st in batting average, 72nd in on-base percentage and 63rd in slugging percentage.
• Carter Jensen paces the Royals with 23 hits.
• Vinnie Pasquantino is batting .165 with three doubles, two triples, three home runs and 16 walks.

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