Events in bold are internal league events
| Date | Name | Description | Link | Distance | Venue | Start | Cat |
| 23-06-20 | Across The Bay - **Postponed** | Mud or Sand? You choose | website | Meet at West End carpark | 19:45 | Open | |
| 04-08-20 | Harwich 5k Series 1 | Fast flat PB busting handicap 5k | website | 5k | Harwich Rugby Club | 19:45 | Open |
| 18-08-20 | Harwich 5k Series 2 | Fast flat PB busting handicap 5k | website | 5k | Harwich Rugby Club | 19:45 | Open |
| 01-09-20 | Harwich 5k Series 3 | Fast flat PB busting handicap 5k | website | 5k | Harwich Rugby Club | 19:45 | Open |
| 13-09-20 | Great Baddow 10 | ten mile undulating course. Revised Date | website | 10 Miles | Great Baddow Recreation Ground | 11:00 | Open |
| 13-09-20 | Great North Run | Newcastle Half Marathon | website | 13.1 Miles | 10:40 | Open | |
| 15-09-20 | Harwich 5k Series 4 | Fast flat PB busting handicap 5k | website | 5k | Harwich Rugby Club | 19:45 | Open |
| 20-09-20 | Great East Run | Ipswich Half Marathon | website | 13.1 Miles | Ipswich Town FC | 10:00 | Open |
| 20-09-20 | Brighton Marathon | website | 26.2 Miles | Preston Park | 09:45 | Open | |
| 20-09-20 | Pleshey Half Marathon | Ninth Annual Pleshey Half Marathon presented by Springfield Striders RC | website | 13.1 miles | Pleshey Village Hall, The Stre | 10:00 | Open |
| 27-09-20 | Frinton & Walton Half Marathon | Revised Date | website | 13.1 miles | Frinton Cricket Club | 10:30 | Open |
| 29-09-20 | Harwich 5k Series 5 | Fast flat PB busting handicap 5k | website | 5k | Harwich Rugby Club | 19:45 | Open |
| 04-10-20 | Virgin Money London Marathon | 40th London Marathon. Revised date following April's Postponement. | website | 26.2 Miles | London | Open | |
| 04-10-20 | Loch Ness Marathon | one of the most stunning marathons in the world | website | 26.2 Miles | Inverness | 10:00 | Open |
| 15-11-20 | Chelmsford 10k | website | 10km | MELBOURNE PARK, SALERNO WAY, C | 14:00 | Open | |
| 29-11-20 | Colchester Zoo Stampede 10k | will run through the Zoo for 1k before heading out onto the closed roads | website | 10k | Colchester Zoo | 09:00 | Open |
| 06-12-20 | GBRC 10 mile Inter-Club | Once Again Harwich have been invited to GBRC 10 mile event | website | 10 miles | Bromley Village Hall | TBC | Open |
| 28-03-21 | Bromley 10k | website | 10k | Little Bromley Church | 10:30 | Open | |
| 11-04-21 | Mayflower Harwich Half Marathon | Return of the Harwich Half Marathon | website | Half Marathon | Harwich | Open | |
| 09-05-21 | Colchester 10k | website | 10km | Abbey Fields | 10:30 | Open |