Cascade Advanced Training Series @ Magnuson (CATS-m) #11


  • Advance registration required for all participants. If you decide not to ride, please click Cancel My Registration below to open space for others. (How to cancel
  • Attendance at the pre-ride safety briefing is required to participate in the ride.
  • If you have tested positive for COVID or have been exposed to someone with COVID, follow the quarantine and isolation guidelines. In general, if you have COVID or are displaying COVID symptoms, or if you are sick with the flu or a cold, you should not participate in group rides.
  • Carry a face covering in case a business or public transit requires their use.
  • Please, no spitting or “snot-rockets” while participating.
  • A CPSC certified helmet is required to be worn to participate.

If you are new, please read our newcomer information.

Date and Time: 
Saturday, June 17, 2023 - 8:00am
Start Location: 
Magnuson Park W6 Parking Lot
NE 74th St & Sportsfield Dr NE
Seattle, WA 98115
Contact Information: 
Jeffrey Powers
100 miles
Elevation Gain: 
5,000 feet
Weather Cancellation: 
Fitness / Health

Come ride with us on Cascade Advanced Training Series at Magnuson (CATS-m)! We are here to help you get ready for a one-day Seattle to Portland (STP) ride, and other epic summer events.

CATS-m is held on Saturdays from April to August from Magnuson Park. Mileage and total cumulative elevation gain increases weekly. Although CATS-m is a series, everyone is welcome to join at any time of the season. Historically, CATS-m riders participate at Brisk or Vigorous or Strenuous pace (16-18/18-20/20-22mph), but all are welcome.

IMPORTANT NOTE: This ride is self-paced, meaning each rider should be prepared to ride and navigate on their own. That said, each week we have a few Ride Leaders who serve as "pace partners". They specify what pace they will be riding, and then encourage others to join them for the whole ride. This allows camaraderie and encouragement from other participants. Riders may join these self-forming groups as they see fit. Please bring a cue sheet and/or upload the route information onto your GPS device/smartphone (see the route link below).

THIS WEEK: 100 miles, 5000 feet of elevation, riding through downtown and south Seattle to Renton, then out to Cedar Grove and Issaquah on to Fall City. Return from Carnation via Redmond Highlands and Woodinville. Rest stops: Gene Coulon Park, mile 21; Tiger Mt store, mile 36; Carnation (food), mile 59; Cottage Lake Safeway, mile 78; Blyth Park, mile 88. Pace partners for Vigorous and Brisk this week. Be ready to ride at 0800. We will start with a required safety briefing, then roll out when that's done. (REVISED route linked below)

Longer rides include rest stops for food, but each rider should carry their own water, food and snacks at the start of the ride. Every rider is also expected to have tubes/tools in order to fix a flat and correct other minor mechanicals, plus have a plan if something interrupts your ride midway -- for example, carry an ORCA card just in case. Please be courteous to others and limit your speed on multi-use trails to the posted limits. (10mph on the Cedar River Trail!)

If weather conditions meet the weather cancellation criterion listed above or if there are unforeseen hazardous riding conditions or other unexpected events, the Ride Leader will post a ride-canceled note in the Comments section below at least two hours prior to the start and Ride Leader(s) will not be at the start location.

***CTS Riders: This ride is CATS/Cascade Advanced Training Series, which is different from CTS.  For more information about CTS rides please click here.


Magnuson Park W6 Parking Lot
NE 74th St & Sportsfield Dr NE
Seattle, WA 98115
Ride Leader(s)

Registrations so far...
Self Paced

25 rider(s)