Seattle Mariners vs Kansas City Royals Prediction 5/22/2026 Today’s MLB Picks

The Seattle Mariners and the Kansas City Royals meet Friday in MLB action from Kauffman Stadium. We will look at this from a betting perspective and determine the best bets for this game. Here’s a Seattle Mariners vs. Kansas City Royals prediction.

Starting Pitching Matchup

The Seattle Mariners will send out Logan Gilbert for the start here and Gilbert is 2-4 with a 4.45 ERA and 57 strikeouts this season. In his last five starts against the Royals, Gilbert is 2-1 with a 3.49 ERA and 31 strikeouts. Noah Cameron will start here and is 2-3 with a 5.40 ERA and 36 strikeouts this season. This will be Cameron’s second career start against the Mariners.

Seattle Mariners Recap

The Seattle Mariners come into this game looking to add on to their 5-4 win over the Chicago White Sox to sit at 24-27 this season. After this series, the Mariners will head on the road for a series against the Athletics.

Mariners Alternate Wins & Losses In 4 Straight

Luke Raley has 10 home runs and 27 RBIs this season. Cole Young’s added 43 hits with 9 doubles, a triple, 3 home runs and 26 RBIs and Cal Raleigh has 26 hits with 4 doubles, 7 home runs and 18 RBIs as well this season. Randy Arozarena has 55 hits with 13 doubles, 5 home runs and 21 RBIs as well on the year. Josh Naylor also has 47 hits with 5 home runs and 22 RBIs as well on the year. Julio Rodriguez has also added 52 hits with 10 doubles, 8 home runs and 21 RBIs.

Kansas City Royals Recap

The Kansas City Royals come into this game looking to shake off a 4-3 loss at the hands of the Boston Red Sox last time out to sit at 20-30 this season. After this series, the Royals will take on the New York Yankees in a series at home.

Royals Drop 9 Of Last 10

Kyle Isbel has 33 hits with 3 home runs and 10 RBIs. Jac Caglianone has 37 hits with 9 doubles, 5 home runs, 10 RBIs and a triple while Bobby Witt Jr. has 59 hits with 13 doubles, 7 home runs and 23 RBIs and Vinnie Pasquantino’s added 34 hits with 4 doubles, 2 triples, 5 home runs and 22 RBIs on the year. Maikel Garcia also has 49 hits with 13 doubles, 3 home runs and 18 RBIs this season. Carter Jensen’s also chipped in 6 home runs and 19 RBIs this season.

Seattle Mariners @ Kansas City Royals Betting Trends: May 22, 2026

• Probable Starting Pitcher: Noah Cameron      Record this season: 2-3      ERA: 5.40
• Home Record: 2-0
• Last 5 against Mariners: 0-0

Why the Kansas City Royals will win

• The Royals have won each of their last seven games against AL West opponents that held a losing record.
• The Mariners have lost four of their last five games as favorites following a win.
• The Royals have covered the run line each of their last seven games against AL West opponents that held a losing record.
• The Mariners have failed to cover the run line in seven of their last eight night games following a home win.
• The Royals have led after 5 innings in each of their last three night games at Kauffman Stadium against AL West opponents.
• The Mariners have lost the first inning in three of their last four night games against AL Central opponents that held a losing record.
• The Royals have led after 3 innings in three of their last four games as home underdogs against American League opponents.

• Probable Starting Pitcher: Logan Gilbert      Record this season: 2-4      ERA: 4.45
• Road Record: 0-1
• Last 5 against Royals: 2-1

Why the Seattle Mariners will win

• The Royals have lost each of their last seven games against American League opponents.
• The road team has won each of the Royals’ last four games.
• The Royals have failed to cover the run line in each of their last seven games against American League opponents.
• The road team has covered the run line in eight of the last nine games between the Mariners and Royals.
• The Mariners have won the first inning in four of their last five games against American League opponents.
• The Mariners have led after 3 innings in four of their last five road games.
• The Mariners have led after 5 innings in seven of their last eight games against American League opponents.

Total Runs Facts

• Eleven of the last 12 games between the Mariners and Royals at Kauffman Stadium have gone OVER the total runs line.
• The ‘Inning 1 OVER 0.5 runs’ market has hit in each of the Royals’ last eight games as underdogs.
• The ‘Inning 1 OVER 0.5 runs’ market has hit in each of the Mariners’ last six night games against AL Central opponents.

Kansas City Royals Player Prop Facts

• Vinnie Pasquantino has hit a home run in five of his last nine home appearances against AL West opponents that held a losing record.
• Starling Marte has recorded at least one hit in each of his last 17 home appearances against AL West opponents that held a losing record.
• Bobby Witt Jr. ranks T3rd in the league in Hits (59) this season.

Seattle Mariners Player Prop Facts

• Logan Gilbert has recorded six or more strikeouts in 18 of his last 20 appearances against AL opponents that held a losing record.
• Patrick Wisdom has recorded at least one hit in each of his eight previous appearances against the Royals.
• Patrick Wisdom has hit a home run in each of his last two appearances against the Royals.
• Randy Arozarena ranks T5th in the league in Steals (14) this season.

Matchup/League Facts

• The Royals rank 27th in the league for runs scored this season (194).
• The Royals rank 27th in the league for walks allowed this season (209).
• The Mariners rank 1st in the league for walks allowed this season (132).
• The Mariners rank 28th in the league for batting average this season (.226).

Seattle Mariners vs. Kansas City Royals Prediction

I’m on the under in this game. I get the case to be made for either side in this game, but these are two teams that are really struggling offensively and I haven’t been able to get on board with Seattle against lefties and the Royals just don’t have the same punch offensively they had at times last season. I think this one’s going to be a low-scoring duel, so give me the under.

Chris Ruffolo's Pick: Under 8