| Event Locations: |
|---|
| Pendleton, Oregon |
| Clarkston, Washington |
| Lewiston, Idaho |
| Sponsor | Name | Date | Runners | Category | Distance | Comment |
| Mainly Marathons | Northwest Series #6 | 09/09/2021 | 15 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #5 | 08/09/2021 | 33 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #4 | 07/09/2021 | 27 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #3 | 06/09/2021 | 37 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #2 | 05/09/2021 | 32 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #1 | 04/09/2021 | 32 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #5 | 05/09/2018 | 25 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #3 | 03/09/2018 | 23 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #1 | 01/09/2018 | 19 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #5 | 06/09/2017 | 37 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #3 | 04/09/2017 | 40 | Marathon | 42.195 km | |
| Mainly Marathons | Northwest Series #2 | 03/09/2017 | 36 | Marathon | 42.195 km |