Sun Mountain 25k, 50k Race Info


50k – 5/19/18

25k – 5/20/18


Winthrop, WA

Avg Temps f.


Gain/Loss in ft

25k – ~2400/2400

50k – ~4800/4800

ft/mile gain

25k – 155 ft/mile

50k – 155 ft/mile

Highest Elev.



25k – 10am

50k –  8am


Single track and dirt service roads

Time Limit

25k – 5 hours

50k – 8 hours



Furthest Aid

7.2 miles

Summary: The Sun Mountain 25k and 50k races are fun, scenic races about a 3 hour drive from Seattle. They consist of mostly runnable single track and dirt service roads, and have moderate elevation gain/loss for the distances. It has a classic Rainshadow party feel with post race pizza, local beer, and festivities included.

Lessons Learned from Race Reports

  • Don’t underestimate the climbs. While they are runnable, they can also feel long. Also, the end of the second big climb around 9.5 miles has a steep section of about 20% grade.
  • The start quickly turns into single track, and if you’re not up front you can get stuck in stop and go traffic. If you’re looking for a good time, it may be worth a harder effort up front to get a good position before settling in.
  • Try and conserve your energy for the final downhill and runnable miles later
  • It warms up quickly, especially with the 10am start for the 25k
  • A lot sunnier than Seattle at this time of year, so be prepared for exposure and heat with clothing, cold liquids, ice at aid stations, and anything else you use to stay cool
  • It is not all downhill after the first climb, so don’t be disappointed, angry, surprised (whatever emotion comes first!) when you still have plenty of climbing left, including some short, steep ups
  • Especially for the 50k, have a solid fueling plan in the heat, given it’s likely to be hot and sunny


Total gain/loss:

25k – ~2400/2400

50k – ~4800/4800

Ft/mile gain: 155 ft/mile

Total climbs:

25: 3 major, countless minor (1×1200, 1×1000, 1×500)

50k: 5 major, countless minor (1×1200, 2×1000, 1×700, 1×500)

Longest climb:

25k: 1200 feet for the first 2.5 miles

50k: ~700 feet from miles 10-16

Steepest climb:

25k: ~800 feet from mile 6.5-7

50k: ~800 feet from mile 6.5-7

25k Elevation profile

50k Elevation profile

Aid stations

Total aid stations:

25k: 2, miles 7.2, 12.0

50k: 3 full, 2 water only, miles 7.2, 13.5, water only at 18.0, 22.5, water only at 27.0

Furthest distance apart: 7.2 miles

What’s available: Typical aid station fare

Crew access

Access Locations: Miles 7.2, 12 (same as 13.5 for 50k), and 22.5 (for 50k)

Crew instructions/directions



Race qualifiers


Race reports

Anna U’s 2018 race report (25k)

Rohit E’s 2018 race report (25k)

Stephanie G’s 2017 race report (25k)

Dan L’s 2017 race report (25k) (tons of great photos)

Strava activities and GPX files



Race Website