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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Half Marathon
  • 21.1 km
  • Hyak (Snoqualmie Pass) to North Bend
  • Event dates –
  • Past event

Jack & Jill's Downhill Marathon & Half Half Marathon

This race edition

Race date
Date not confirmed for this distance
Race timezone
Timezone not confirmed
Edition status
Status not confirmed

Entry options

2026 edition

Entry options are not yet confirmed for this edition. Check the organiser before making plans.

Modelled energy-cost change -1.5% versus flat · net elevation -264 m

View verified GPS mapOfficial event website ↗
Plan my trainingPlan my paceData current as of

Decision summary

Jack & Jill's Downhill Marathon & Half Half Marathon at a glance

Route ascent
311 m

Lower than 21% of comparable mapped races

Cut-off average pace
11:23/km

4:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.

Typical conditions
75/100

Historical race-date favourability, not a forecast

Evidence depth
19 verified facts

Stored GPS route

Quick answers

What runners ask first

Jack & Jill's Downhill Marathon & Half Half Marathon route map

raceindex.org has a GPS course file for Jack & Jill's Downhill Marathon & Half Half Marathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.

How hilly is the Jack & Jill's Downhill Marathon & Half Half Marathon?

The Jack & Jill's Downhill Marathon & Half Half Marathon route has 311 m of ascent, 574 m of descent and an estimated -1.5% grade-adjusted pace penalty versus a flat route.

Where does the Jack & Jill's Downhill Marathon & Half Half Marathon route go?

Underfoot, expect a trail course. The setting includes countryside and historic. post-race shuttle returns runners from the North Bend finish to the Hyak start parking.

Race character

Scenery

  • Countryside
  • Historic
  • Parkland
  • Mountain
  • Forest
  • Lakeside

Atmosphere

  • Destination
  • Scenic Tour
  • Wilderness

Terrain

  • Trail

Entry, logistics and records

Records and field

Field size
Marathon and half marathon both run on Saturday and Sunday with rolling starts; the event is a long-standing annual sell-out.

Entry requirements

Entry status
Past event: The listed edition date has passed.
Cut-off
4-hour cutoff; rolling start window 6:30 AM, finish line open until 10:30 AM

Race day logistics

Expo / packet pickup
Packet pickup at Snoqualmie Running Company, 38843 SE Newton St, Snoqualmie WA; Fri Jul 24 11am-7pm and Sat Jul 25 3pm-7pm. Photo ID required to collect bib.

Course facts

Course type
Point To Point
Notable features
  • Held over two days (Jul 25 & 26, 2026)
  • both marathon and half offered each day with rolling starts
  • post-race shuttle returns runners from the North Bend finish to the Hyak start parking

How hilly is the Jack & Jill's Downhill Marathon & Half Half Marathon?

18%19%40%14%9%
  • Steep descent 18%
  • Descent 19%
  • Flat 40%
  • Climb 14%
  • Steep climb 9%
Total ascent
311 m
Net elevation
−264 m
GAP factor
-1.5%
Longest climb
140 m at 12.5%
Gradient mix and ascent are derived from the course geometry under our published normalisation, not taken from organiser marketing.

What are typical race-day conditions?

  • 18°CTypical temperature
  • 14 kphTypical wind
  • 1 mmTypical rainfall
  • 75Favourability /100
Typical conditions for the race date and locality, warmer than the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

More race details

Is the Jack & Jill's Downhill Marathon & Half Half Marathon flat?

Its normalised GAP factor is -1.5% slower than a flat course, with about 311 m of total ascent.

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (3)

Read the full methodology →