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Kolek's Complete-Game Shutout Ends Royals' Four-Game Skid

The efficient nine-inning outing highlights rotation depth, which could prompt Kansas City to consider trading lefty Kris Bubic.

May 23, 2026; Milwaukee, Wisconsin, USA;  Los Angeles Dodgers left fielder Teoscar Hernandez (37) hits an RBI single during the ninth inning against the Milwaukee Brewers at American Family Field. Mandatory Credit: Jeff Hanisch-Imagn Images
May 23, 2026; Kansas City, Missouri, USA;  Kansas City Royals starting pitcher Stephen Kolek (32) throws a pitch in the first inning against the Seattle Mariners at Kauffman Stadium. Mandatory Credit: Peter Aiken-Imagn Images
May 23, 2026; Cincinnati, Ohio, USA;  St. Louis Cardinals outfielder Bryan Torres (39) hits a two-run home run against the Cincinnati Reds in the ninth inning at Great American Ball Park. Mandatory Credit: Aaron Doster-Imagn Images
May 23, 2026; Philadelphia, Pennsylvania, USA; Philadelphia Phillies pitcher Zack Wheeler (45) throws a pitch during the fifth inning against the Cleveland Guardians at Citizens Bank Park. Mandatory Credit: Bill Streicher-Imagn Images

Overview

  • Stephen Kolek threw a nine-inning complete-game shutout on May 23, allowing four hits, one walk and recording two strikeouts while throwing 108 pitches to lead the Royals to a 5-0 win over the Mariners.
  • Kansas City built the lead with a three-run first inning and added runs in the third and sixth to take command early and remove pressure from Kolek's start.
  • The Mariners managed just four hits and one walk while making two key base-running or situational mistakes that ended scoring threats and helped Kolek face only 29 batters.
  • Kolek's shutout was the Royals' first complete-game shutout since 2020 and his second career shutout, a rare feat in today's bullpen-driven game that underscores his value as a durable starter.
  • Because Kolek has provided reliable depth, team analysts say the outing could make the Royals more willing to trade Kris Bubic before the deadline if Kansas City stays out of contention.