| VOLTA WW RTTY Contest | 1200Z, May 9 to 1200Z, May 10 |
| CQ-M International DX Contest | 1200Z, May 9 to 1159Z, May 10 |
| SKCC Weekend Sprintathon | 1200Z, May 9 to 2400Z, May 10 |
| Canadian Prairies QSO Party | 1700Z, May 9 to 0300Z, May 10 |
| 50 MHz Spring Sprint | 2300Z, May 9 to 0300Z, May 10 |
| 4 States QRP Group Second Sunday Sprint | 0000Z-0200Z, May 11 |
| K1USN Slow Speed Test | 0000Z-0100Z, May 11 |
| ICWC Medium Speed Test | 1300Z-1400Z, May 11 |
| OK1WC Memorial (MWC) | 1630Z-1729Z, May 11 |
| RSGB 80m Club Championship, SSB | 1900Z-2030Z, May 11 |
| ICWC Medium Speed Test | 1900Z-2000Z, May 11 |
| Worldwide Sideband Activity Contest | 0100Z-0159Z, May 12 |
| ICWC Medium Speed Test | 0300Z-0400Z, May 12 |
| DARC FT4 Contest | 1900Z-2029Z, May 12 |
| Phone Weekly Test | 0230Z-0300Z, May 13 |
| A1Club AWT | 1145Z-1300Z, May 13 |
| CWops Test (CWT) | 1300Z-1400Z, May 13 |
| VHF-UHF FT8 Activity Contest | 1700Z-2100Z, May 13 |
| Mini-Test 40 | 1700Z-1759Z, May 13 |
| Mini-Test 80 | 1800Z-1859Z, May 13 |
| CWops Test (CWT) | 1900Z-2000Z, May 13 |
| VHF-UHF FT8 Activity Contest-NA | 0000Z-0500Z, May 14 |
| CWops Test (CWT) | 0300Z-0400Z, May 14 |
| CWops Test (CWT) | 0700Z-0800Z, May 14 |
| QRP Minimal Art Session | 1400Z-2200Z, May 14 |
| NCCC FT4 Sprint | 0100Z-0130Z, May 15 |
| Weekly RTTY Test | 0145Z-0215Z, May 15 |
| NCCC Sprint | 0230Z-0300Z, May 15 |
| K1USN Slow Speed Test | 2000Z-2100Z, May 15 |
| UN DX Contest | 0600Z-2100Z, May 16 |
| NZART Sangster Shield Contest | 0800Z-1100Z, May 16 |
| His Maj. King of Spain Contest, CW | 1200Z, May 16 to 1200Z, May 17 |
| EU PSK DX Contest | 1200Z, May 16 to 1200Z, May 17 |
| Arkansas QSO Party | 1400Z, May 16 to 0200Z, May 17 |
| Feld Hell Sprint | 2000Z-2359Z, May 16 |
| Baltic Contest | 2100Z, May 16 to 0200Z, May 17 |
