Mainly Marathons Northwest Series
Lewiston, United States • 21 Sep 2026
Event Overview
The 2026 Northwest Series - Day 3 (WA) is a multisport running event organized by Mainly Marathons. Located in Clarkston, Washington, the event takes place at the Convention Center on Port Way. It features a variety of distances to accommodate different participation levels.
Distances
Participants can choose from five distinct race distances:
- 50K
- Marathon
- Half Marathon
- 10K
- 5K
All races are held under an open registration format for individual age groups. These events are specifically designed without time limits, allowing participants to complete their selected distance at their own pace.
Participant Experience
The event provides several amenities for those taking part in the series. Runners have access to food throughout the event. Every finisher is eligible for an award medal upon completion of their race. The event is part of a larger multi-day series, though Day 3 is specifically centered in Clarkston. Merchandise such as hats and magnets is typically available for purchase on-site. The course is located near the local Convention Center at 847 Port Way. Visit the organization's website for the most recent information.