Cascade Express Marathon & Half Marathon 42 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
A full marathon on a gentle 57 m of climbing, running point to point from Hyak and straight through a 2.4-mile tunnel. Fast legs, one very dark stretch.
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 Homestead Valley Trailhead
Create a free training plan for the Cascade Express Marathon & Half Marathon 42 km
7-day free trial, no card required
The course
The route
Snoqualmie Pass
Distance42km
Total climb57m
StartElevation
0 kmDrag map to rotate42.0 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
Results
Course verified. Results not yet available.
Organiser
Training
Training for the Cascade Express Marathon & Half Marathon 42 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 42 km plan targets
Typical sessions
42 km with 57 m of climbing
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 42 km plan.
7-day free trial, no card required.
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