Thrilla (WA)

King County, Washington, United States

18.0 miles (29.0 km) · 1,453 ft elevation gain · Loop · trail · Route

Thrilla (WA) is a 18.0-mile loop route in King County, Washington, United States, gaining 1,424 feet of elevation. The route follows a up-and-over elevation profile. The terrain breaks into 5 distinct sections including 1 significant climb. The longest climb covers 2.3 miles gaining 602 feet at an average 4.3% grade. Approximately 87% of the route is runnable at a steady effort. The route opens with a climb and finishes with flat terrain.

Route facts

Distance	18.0 mi (29.0 km)
Elevation gain	1,453 ft (443 m)
Average gain	81 ft per mile (15 m per km)
Longest climb	8.8 mi, 583 ft of gain
Steepest climb grade	21.9%
Runnable	87% of the route
Climbs / descents	1 climbs, 1 descents
Profile shape	Up, then down
Difficulty score	3.9 of 100
Surface	trail
Route shape	Loop
Type	Route

Grade breakdown

Grade band	Share of route
Flat	40%
Mild uphill	19%
Moderate uphill	6%
Steep uphill	3%
Mild downhill	22%
Moderate downhill	6%
Steep downhill	4%

Questions about Thrilla (WA)

How much elevation gain does Thrilla (WA) have?

Thrilla (WA) has 1,453 ft (443 m) of elevation gain over 18.0 miles (29.0 km). That averages 81 ft of gain per mile.

How difficult is Thrilla (WA)?

The difficulty score for Thrilla (WA) is 3.9 of 100. That is harder than 35.6% of routes at a similar distance. About 87% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.

What is the longest climb on Thrilla (WA)?

The longest climb on Thrilla (WA) runs 8.8 miles (14.2 km) and gains 583 ft (178 m). The steepest climb grade on the route is 21.9%.