Head to Head
| MLB Exhibition | 2021/03/17 01:05 | SEA Mariners v KC Royals | L | 13-0 |
| MLB Spring Training | 2021/03/09 20:10 | KC Royals v SEA Mariners | L | 3-6 |
| MLB Exhibition | 2020/02/29 20:10 | KC Royals v SEA Mariners | W | 9-6 |
| MLB | 2019/06/19 22:40 | KC Royals v SEA Mariners | L | 2-8 |
| MLB | 2019/06/19 02:10 | KC Royals v SEA Mariners | W | 9-0 |
| MLB | 2019/06/18 02:10 | KC Royals v SEA Mariners | W | 6-4 |
| MLB | 2019/04/11 17:15 | SEA Mariners v KC Royals | L | 7-6 |
| MLB | 2019/04/11 00:15 | SEA Mariners v KC Royals | L | 6-5 |
Home History
| MLB | 2021/07/28 00:10 | CHI White Sox v KC Royals | L | 5-3 |
| MLB | 2021/07/27 00:10 | CHI White Sox v KC Royals | W | 3-4 |
| MLB | 2021/07/25 18:10 | DET Tigers v KC Royals | W | 1-6 |
| MLB | 2021/07/24 23:10 | DET Tigers v KC Royals | W | 8-9 |
| MLB | 2021/07/24 00:10 | DET Tigers v KC Royals | W | 3-5 |
| MLB | 2021/07/21 18:10 | KC Royals v MIL Brewers | W | 6-3 |
| MLB | 2021/07/20 20:10 | KC Royals v MIL Brewers | W | 5-2 |
| MLB | 2021/07/18 18:10 | BAL Orioles v KC Royals | L | 5-0 |
Away History
| MLB | 2021/07/28 02:10 | HOU Astros v SEA Mariners | L | 8-6 |
| MLB | 2021/07/27 02:10 | HOU Astros v SEA Mariners | W | 8-11 |
| MLB | 2021/07/25 20:10 | OAK Athletics v SEA Mariners | W | 3-4 |
| MLB | 2021/07/25 02:10 | OAK Athletics v SEA Mariners | W | 4-5 |
| MLB | 2021/07/24 02:10 | OAK Athletics v SEA Mariners | W | 3-4 |
| MLB | 2021/07/23 02:10 | OAK Athletics v SEA Mariners | L | 4-1 |
| MLB | 2021/07/21 19:10 | SEA Mariners v COL Rockies | L | 3-6 |
| MLB | 2021/07/21 00:40 | SEA Mariners v COL Rockies | W | 6-4 |