OBT-1

Chicago, Illinois, United States

10.5 miles (16.8 km) · 251 ft elevation gain · Loop · trail · Route

OBT-1 is a 10.5-mile loop route in Chicago, Illinois, United States, gaining 251 feet of elevation. The route follows a rolling elevation profile. The terrain covers 3 distinct sections with no major climbs. Nearly the entire route is runnable at a steady effort. The route both opens and finishes with flat terrain.

Route facts

Distance	10.5 mi (16.8 km)
Elevation gain	251 ft (77 m)
Average gain	24 ft per mile (5 m per km)
Runnable	98% of the route
Climbs / descents	0 climbs, 0 descents
Profile shape	Rolling
Difficulty score	1.4 of 100
Surface	trail
Route shape	Loop
Type	Route

Grade breakdown

Grade band	Share of route
Flat	84%
Mild uphill	6%
Moderate uphill	1%
Mild downhill	7%
Moderate downhill	1%
Steep downhill	1%

Questions about OBT-1

How much elevation gain does OBT-1 have?

OBT-1 has 251 ft (77 m) of elevation gain over 10.5 miles (16.8 km). That averages 24 ft of gain per mile.

How difficult is OBT-1?

The difficulty score for OBT-1 is 1.4 of 100. That is harder than 17.4% of routes at a similar distance. About 98% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.