Head to Head
| MLB Exhibition | 2021/03/17 01:05 | SEA Mariners v KC Royals | W | 13-0 |
| MLB Spring Training | 2021/03/09 20:10 | KC Royals v SEA Mariners | W | 3-6 |
| MLB Exhibition | 2020/02/29 20:10 | KC Royals v SEA Mariners | L | 9-6 |
| MLB | 2019/06/19 22:40 | KC Royals v SEA Mariners | W | 2-8 |
| MLB | 2019/06/19 02:10 | KC Royals v SEA Mariners | L | 9-0 |
| MLB | 2019/06/18 02:10 | KC Royals v SEA Mariners | L | 6-4 |
| MLB | 2019/04/11 17:15 | SEA Mariners v KC Royals | W | 7-6 |
| MLB | 2019/04/11 00:15 | SEA Mariners v KC Royals | W | 6-5 |
Home History
| MLB | 2021/06/06 02:07 | SEA Mariners v LA Angels | L | 5-12 |
| MLB | 2021/06/05 01:38 | SEA Mariners v LA Angels | L | 2-3 |
| MLB | 2021/06/04 01:38 | SEA Mariners v LA Angels | W | 6-2 |
| MLB | 2021/06/03 02:10 | OAK Athletics v SEA Mariners | L | 6-0 |
| MLB | 2021/06/02 02:10 | OAK Athletics v SEA Mariners | L | 12-6 |
| MLB | 2021/05/31 20:10 | OAK Athletics v SEA Mariners | W | 5-6 |
| MLB | 2021/05/30 20:10 | TEX Rangers v SEA Mariners | W | 2-4 |
| MLB | 2021/05/30 02:10 | TEX Rangers v SEA Mariners | W | 2-3 |
Away History
| MLB | 2021/06/05 20:10 | MIN Twins v KC Royals | L | 5-4 |
| MLB | 2021/06/05 00:10 | MIN Twins v KC Royals | W | 5-14 |
| MLB | 2021/06/04 00:10 | MIN Twins v KC Royals | W | 5-6 |
| MLB | 2021/06/02 00:10 | PIT Pirates v KC Royals | W | 5-10 |
| MLB | 2021/06/01 00:10 | PIT Pirates v KC Royals | W | 3-7 |
| MLB | 2021/05/30 18:10 | KC Royals v MIN Twins | W | 6-3 |
| MLB | 2021/05/29 18:10 | KC Royals v MIN Twins | L | 5-6 |
| MLB | 2021/05/29 00:10 | KC Royals v MIN Twins | W | 8-3 |