Northwest Series: September 23-28, 2023

Days 1 & 2 (Sat, Sept 23 & Sun, Sept 24): Pendleton, Oregon
Days 3 & 4 (Mon, Sept 25 & Tues, Sept 26): Clarkston, Washington2021 NW Series
Days 5 & 6 (Wed, Sept 27 & Thurs, Sept 28): Lewiston, Idaho

Quick overviewseriesgroupfb
Series Dates: Saturday, September 23-Thursday, September 28, 2023
Race Times: All races in this series begin at 6:30 AM Pacific time.
Early Start: Yes (optional); click HERE for details.
Packet Pickup: Friday, September 22, 3-4:30 PM; Convention Center, 1657 Westgate, Pendleton, OR.
Race Day Packet Pickup/Registration: Beginning at 5:00 AM (PT) on race days, at the start line.
Time Limit: None. We have a “no runner left behind” policy, and we happily stay until the final finisher crosses the line. Walkers are always welcome!
Pets/Strollers: Pets are not allowed, for the safety and comfort of our runners/walkers; you’re welcome to bring a stroller if you have small children.
Group dinners, hotels, and airports: Check Northwest Series Facebook Group.

Hotel Searches: OR, WA, ID
Discounts: $10 discount on marathon/half marathon to active military, as well as members of any club that will list these events on their calendar. ( requires a code to receive discount, which you can find on the club’s site or by contacting us.) We also offer a discount for local participants; contact us for details.
Food/aid stations: Due to our unique multi-loop course setup, we have one giant “aid station,” with more food and drink than you could ever need! Ask anyone who’s run at least one of our races; we’ve got everything from fruit to jelly beans to sandwiches, water to Gatorade to hot coffee, and everything in between. Way more than just granola bars and bananas–we even have our very own mobile kitchen, Loony Lunchbox!

Registration information is below. You may do any number of races; special medals are awarded to those who complete all six!

Race Locations:

  • Days 1 & 2: Oregon
    • Convention Center
    • 1657 Westgate
    • Pendleton, OR
    • GPS (map): N 45.66892, W 118.80368
    • Course: Smooth surface on a mix of asphalt, concrete, and pavement with little shade.
    • Elevation Gain (per lap estimates by Garmin): 30′
    • Tentative Laps: 14 for Marathon
    • Course Lap Preview


  • Days 3 & 4: Washington
    • Conference Center
    • 847 Port Way
    • Clarkston, WA
    • GPS (map): N 46.42521, W 117.04837
    • Course: Smooth surface on a mix of asphalt, concrete, and pavement with little shade.
    • Elevation Gain (per lap estimates by Garmin): 33′
    • Tentative Laps: 14 for Marathon
    • Course Lap Preview


  • Days 5 & 6: Idaho
    • Hell’s Gate State Park
    • 5501 Hell’s Gate Road
    • Lewiston, ID
    • GPS (map): N 46.36421, W 117.05893
    • Course: Smooth surface on asphalt with little to moderate shade.
    • Elevation Gain (per lap estimates by Garmin): 15′
    • Tentative Laps: 14 for Marathon
    • Course Lap Preview



Travel distances/times between race locations:

  • Day 1/2 (OR)=>Day 3/4 (WA): 137 miles, 2:40
  • Day 3/4 (WA)=>Day 5/6 (ID): 7 miles, 0:15

NW Map 2


What about the bling?
We all know that’s the best part! Every participant will receive one t-shirt and other fun goodies.
All finishers will receive a separate medal for each day; in addition, we give a special medal to those who complete all races in a series.
We even give a special award to each person participating in his or her first full or half marathon!
The best part: The famous caboose, given to the final finisher of each marathon and half marathon!

Oregon – Washington – Idaho

September 23-28 2023
Race type By 1/31/23 2/1/23-3/31/23 4/1/23-8/31/23 After 8/31/23
Full $110 $120 $135 $155
Half $95 $105 $120 $135
10K $55 $55 $55 $65
5K $45 $45 $45 $55
50K $120 $130 $145 $165
Register Online: HERE!!
Mail-in Registration: HERE!!

Click to view our most recent edition of The Loony Bin!

Running Ragged: 20in20

2018 MN Brothers Trail Series

Check out the amazing aerial video shot by a drone flown over our course in Clayton, NM, during the 2015 Dust Bowl Series!
Click HERE to video the full-sized video on our YouTube channel.

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Mainly Marathons | 1239 2nd Street N, #308 | Sauk Rapids, MN 56379