Following eligibility lists contain KC0YKO
 Club  | Timestamp | Geo Type | Club Ctr | Call | Grid | Distance |
| Heartland DX Association | 2025-01-01 05:08:53 | 250 mile circle | EN21ag | KC0YKO | EN21dd | 15.6 |
| Heartland DX Association | 2024-03-25 03:21:13 | 250 mile circle | EN21ag | KC0YKO | EN21dd | 15.6 |
| Heartland DX Association | 2023-12-30 04:08:23 | 250 mile circle | EN21ag | KC0YKO | EN21dd | 15.6 |
| Heartland DX Association | 2023-11-27 02:41:28 | 250 mile circle | EN21ag | KC0YKO | EN21dd | 15.6 |