The Kansas City Royals and the Seattle Mariners meet Friday in MLB action from T-Mobile Park. We will look at this from a betting perspective and determine the best bets for this game. Here’s a Kansas City Royals vs. Seattle Mariners prediction.
Starting Pitching Matchup
The Kansas City Royals will send out Cole Ragans for the start here and Ragans is 1-4 with a 5.00 ERA and 33 strikeouts this season. In his career, Ragans is 0-0 with a 2.79 ERA and 13 strikeouts against the Mariners. Bryan Woo will start for Seattle here and is 1-2 with a 3.86 ERA and 27 strikeouts this season. This will be Woo’s second career start against the Royals.
Kansas City Royals Recap
The Kansas City Royals come into this game looking to bounce back from a 6-3 loss at the hands of the Athletics last time out to sit at 12-19 this season. After this series, the Royals will host the Guardians in a series at home.
Royals Drop Back-To-Back Games
Kyle Isbel has 21 hits with 3 home runs and 8 RBIs while Jonathan India has 2 home runs and 8 RBIs on the year. Jac Caglianone has 22 hits with 5 doubles, 2 home runs, 4 RBIs and a triple while Bobby Witt Jr. has 35 hits with 9 doubles, 2 home runs and 15 RBIs and Vinnie Pasquantino’s added 17 hits with 3 doubles, 2 triples, 3 home runs and 14 RBIs on the year. Maikel Garcia also has 31 hits with 8 doubles, 3 home runs and 11 RBIs this season. Carter Jensen’s also chipped in 6 home runs and 16 RBIs this season.
Seattle Mariners Recap
The Seattle Mariners come into this game looking to build on their 5-3 win over the Twins last time out to sit at 16-16 this season. After this series, the Mariners will take on the Braves in a series at home.
Mariners Win 6 Of Last 7
Brendan Donovan has 17 hits with 3 doubles, 3 home runs and 8 RBIs while Luke Raley has 5 home runs and 13 RBIs this season. Cole Young’s added 32 hits with 4 doubles, a triple, 3 home runs and 19 RBIs and Cal Raleigh has 24 hits with 4 doubles, 7 home runs and 18 RBIs as well this season. Randy Arozarena has 33 hits with 9 doubles, 2 home runs and 11 RBIs as well on the year. Josh Naylor also has 24 hits with 4 home runs and 15 RBIs as well on the year. Julio Rodriguez has also added 32 hits with 6 doubles, 2 home runs and 12 RBIs.
Kansas City Royals @ Seattle Mariners Betting Trends: May 1, 2026
- Probable Starting Pitcher: Bryan Woo Record this season: 1-2 ERA: 3.86
- Home Record: 1-0
- Last 5 against Royals: 1-0
Why the Seattle Mariners will win
- The Mariners have won each of their last 14 home games against teams that held a losing record.
- The Royals have lost each of their last nine road games after playing the previous day.
- The Royals have failed to cover the run line in each of their last six games as underdogs.
- The favorites have covered the run line in each of the Royals’ last six games.
- The Royals have trailed after 3 innings in four of their last five road games.
- The Royals have trailed after 5 innings in each of their last seven road games.
- The Mariners have won the first inning in each of their last six home games against American League opponents that held a losing record.
- Probable Starting Pitcher: Cole Ragans Record this season: 1-4 ERA: 5.00
- Road Record: 0-3
- Last 5 against Mariners: 0-0
Why the Kansas City Royals will win
- The Royals have won each of their last six night games against AL West opponents following a loss.
- The Mariners have lost four of their last five games as favorites against American League opponents following a road win.
- The Mariners have failed to cover the run line in each of their last seven night games following a win.
- The Royals have covered the run line in each of their last five night games against AL West opponents following a loss.
- The Royals have led after 3 innings in three of their last four games at T-Mobile Park.
- The Mariners have trailed after 5 innings in each of their last four games against American League opponents.
Total Runs Facts
- Five of the Royals’ last six night games as underdogs have gone UNDER the total runs line.
- Four of the Mariners’ last five games against AL Central opponents have gone OVER the total runs line.
- The ‘Inning 1 OVER 0.5 runs’ market has hit in each of the Mariners’ last 12 home games.
- The ‘Inning 1 UNDER 0.5 runs’ market has hit in 14 of the Royals’ last 15 night games.
Seattle Mariners Player Prop Facts
- Cal Raleigh has hit a home run in each of the Mariners’ last three home games.
- Julio Rodriguez has recorded at least one hit in each of the Mariners’ last 10 home games.
Kansas City Royals Player Prop Facts
- Salvador Perez has hit a home run in two of the Royals’ last three night games.
- Starling Marte has recorded at least one hit in 13 of his 14 previous appearances against the Mariners after playing the previous day.
- Bobby Witt Jr. ranks T5th in the league in Steals (10) this season.
Matchup/League Facts
- The Mariners rank 1st in the league for walks allowed this season (80).
- The Mariners rank 26th in the league for strikeouts against this season (288).
- The Royals rank T6th in the league for triples this season (5).
- The Royals rank 25th in the league for walks allowed this season (137).
Kansas City Royals vs. Seattle Mariners Prediction
I’m on the Mariners in this one. I still don’t trust this Royals bullpen in the later stages of games and Cole Ragans hasn’t really had any luck in any of his starts this season. I think Woo is the better starter here and I think he bounces back with a strong start at home here. Give me the Mariners.