| 9/1/18 |
Kansas City Royals recalled Meibrys Viloria from Wilmington Blue Rocks. |
| 9/3/18 |
Kansas City Royals sent RHP Ian Kennedy on a rehab assignment to Northwest Arkansas Naturals. |
| 9/4/18 |
Kansas City Royals activated LHP Eric Skoglund. |
| 9/4/18 |
Kansas City Royals recalled Glenn Sparkman from Omaha Storm Chasers. |
| 9/4/18 |
Kansas City Royals recalled Jerry Vasto from Omaha Storm Chasers. |
| 9/5/18 |
Kansas City Royals designated LHP Eric Stout for assignment. |
| 9/5/18 |
Kansas City Royals claimed RHP Ben Lively off waivers from Philadelphia Phillies. |
| 9/9/18 |
Kansas City Royals activated RHP Ian Kennedy from the 10-day disabled list. |
| 9/10/18 |
Kansas City Royals released LHP Eric Stout. |
