Mariners vs Royals Prediction, Odds, Moneyline, Spread & Over/Under for May 2

Odds updated as of 5:12 a.m.

The Seattle Mariners will take on the Kansas City Royals in MLB action on Saturday.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the vital information regarding this matchup.

Mariners vs Royals Game Info

• Seattle Mariners (16-17) vs. Kansas City Royals (13-19)
• Date: Saturday, May 2, 2026
• Time: 9:40 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Mariners.TV and Royals.TV

Mariners vs Royals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-146) | KC: (+124)
• Spread: SEA: -1.5 (+152) | KC: +1.5 (-184)
• Total: 7.5 -- Over: (-112) | Under: (-108)

Mariners vs Royals Probable Starting Pitchers

Probable Pitchers: Emerson Hancock (Mariners) - 2-1, 2.86 ERA vs Seth Lugo (Royals) - 1-1, 2.63 ERA

The Mariners will look to Emerson Hancock (2-1) against the Royals and Seth Lugo (1-1). Hancock's team is 2-4-0 against the spread in his starts this season. Hancock's team is 3-2 this season when he starts and they are the moneyline favorite. The Royals have gone 4-2-0 ATS in Lugo's six starts with a set spread. The Royals have been the moneyline underdog in three of Lugo's starts this season, and they went 1-2 in those games.

Mariners vs Royals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (59.2%)

Mariners vs Royals Moneyline

• Kansas City is the underdog, +124 on the moneyline, while Seattle is a -146 favorite at home.

Mariners vs Royals Spread

• The Royals are at +1.5 on the runline against the Mariners. The Royals are -184 to cover the spread, and the Mariners are +152.

Mariners vs Royals Over/Under

• The Mariners-Royals contest on May 2 has been given an over/under of 7.5 runs. The over is set at -112 and the under at -108.

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Mariners vs Royals Betting Trends

• The Mariners have been victorious in 15, or 51.7%, of the 29 contests they have been chosen as favorites in this season.
• Seattle has a record of 8-6 in contests when bookmakers favor them by -146 or more on the moneyline.
• The Mariners and their opponents have hit the over in 16 of their 33 games with a total set by oddsmakers this season.
• In 33 games with a line this season, the Mariners have a mark of 12-21-0 against the spread.
• The Royals have won four of the 15 games they were the moneyline underdog this season (26.7%).
• Kansas City has a 2-2 record (winning 50% of its games) when playing as a moneyline underdog of +124 or longer.
• The Royals have played in 30 games with an over/under set, and have combined with opponents to go over the total 13 times (13-17-0).
• The Royals have covered 43.3% of their games this season, going 13-17-0 ATS.

Mariners Player Leaders

• Randy Arozarena leads Seattle in OBP (.377), slugging percentage (.458) and total hits (34) this season. He has a .288 batting average.
• Among all qualified hitters in the majors, he is 37th in batting average, 31st in on-base percentage, and 54th in slugging.
• Cole Young is hitting .276 with four doubles, a triple, three home runs and 11 walks, while slugging .405 with an on-base percentage of .346.
• Among qualifying batters, he is 48th in batting average, 70th in on-base percentage and 91st in slugging percentage.
• Julio Rodriguez has hit four homers with a team-high .400 SLG this season.
• Rodriguez has picked up a hit in three straight games. During his last five outings he is hitting .318 with three doubles, two home runs and six RBIs.
• Josh Naylor is batting .214 with a .285 OBP and 15 RBI for Seattle this season.

Royals Player Leaders

• Bobby Witt Jr. has put up a .368 on-base percentage and a .424 slugging percentage, both team-high averages for the Royals. He's batting .288.
• He is 37th in batting average, 43rd in on-base percentage and 76th in slugging percentage among all qualified batters in the big leagues.
• Maikel Garcia is hitting .274 with eight doubles, a triple, three home runs and 13 walks. He's slugging .436 with an on-base percentage of .344.
• He is currently 50th in batting average, 74th in on-base percentage and 68th in slugging percentage among all qualified hitters.
• Vinnie Pasquantino is batting .176 with three doubles, two triples, four home runs and 16 walks.
• Carter Jensen's 23 hits lead his team.

Mariners vs Royals Head to Head

• 5/1/2026: 7-6 KC (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 9/18/2025: 2-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 9, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 9/17/2025: 7-5 KC (Favorite: Royals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -124, Underdog Moneyline: +106)
• 9/16/2025: 12-5 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 7/3/2025: 3-2 KC (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 7/2/2025: 3-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -166, Underdog Moneyline: +140)
• 7/1/2025: 6-3 KC (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 6/30/2025: 6-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -164, Underdog Moneyline: +138)
• 6/9/2024: 6-5 SEA (Favorite: Royals, Spread: -1.5, Total: 7.5, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 6/8/2024: 8-4 KC (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +114)

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