Cascade Express Marathon & Half Marathon 21 km
RunningPoint to point
DateExpected
Mid September 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Hyak Trailhead, Snoqualmie Pass, WA
Snoqualmie Pass, WA
Countdown
September
The half version of the Hyak tunnel run: point to point, with the 2.4-mile Snoqualmie Tunnel to get through before you finish at Garcia Crossing.
Key facts
01Bring a headlamp: a light is required through the 2.4-mile Snoqualmie Tunnel
02Point to point: you start at Hyak Trailhead and finish at Garcia Crossing
Create a free training plan for the Cascade Express Marathon & Half Marathon 21 km
7-day free trial, no card required
The course
The route
Snoqualmie Pass
Distance21km
StartElevation
0 kmDrag map to rotate21.1 km
Weather
Mid-September, Snoqualmie Pass
17°CTypical high
7°CTypical low
-1°CColdest in 20 years
34%Days with rain
Highs around 17°C and lows around 7°C, but it has dropped to -1°C. Rain on 34% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2024 results
Who finishes, and how
#RiderTimeAvg speed
01Kira Korten01:32:5313.6 km/h
02Krista Barnett01:36:3413.1 km/h
03Cara Reardon01:37:0813.0 km/h
208
Women finishers
2:24:16
Median time
8.8 km/h
Median speed
Women · 2024 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Cascade Express Marathon & Half Marathon 21 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Cascade Express Marathon & Half Marathon 21 km plan targets
Typical sessions
21 km
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Cascade Express Marathon & Half Marathon 21 km plan.
7-day free trial, no card required.
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