Course

Sonoma 100 Mile Sufferfest

Plan

Sonoma 100 Mile Sufferfest

Course
101.1 mi +26,030 ft-26,039 ft
Event
October 17, 2026
Start
5:00 AM
Legend
Terrain Type
Smooth Technical
Start
Full aid
Water
Loop end
Crew
Drop bags
Pacer
Cutoff
Finish
Controls
Units
Time Display
S
0.0 mi
Loop 1 - Lake Sonoma Visitor Center Aid
5.9 mi +2,846 ft-1,319 ft
1
5.9 mi
Loop 1 - Pritchett Peak Turnaround
5.8 mi +1,389 ft-2,920 ft
2
11.7 mi
Loop 1 - Lake Sonoma Visitor Center Aid
6.2 mi +1,431 ft-1,198 ft
3
17.8 mi
Loop 1 - Island View Aid
7.4 mi +1,651 ft-1,613 ft
4
25.3 mi
Loop 1 - Warm Springs Aid
5.5 mi +1,254 ft-963 ft
5
30.7 mi
Loop 1 - Wulflow Water
3.0 mi +718 ft-445 ft
6
33.7 mi
Loop 1 - Liberty Glen Aid
4.5 mi +1,038 ft-944 ft
7
38.2 mi
Loop 1 - Lone Rock Aid
4.1 mi +733 ft-1,381 ft
8
42.3 mi
Loop 1 - Falcon's Nest Water
4.1 mi +1,381 ft-732 ft
9
46.4 mi
Loop 1 - Lone Rock Aid
4.1 mi +578 ft-1,509 ft
0
50.5 mi
Loop 2 - Lake Sonoma Visitor Center Aid
Sat 10:00 PM
5.9 mi +2,850 ft-1,319 ft
1
56.4 mi
Loop 2 - Pritchett Peak Turnaround
5.8 mi +1,389 ft-2,920 ft
2
62.2 mi
Loop 2 - Lake Sonoma Visitor Center Aid
Sun 2:15 AM
6.2 mi +1,431 ft-1,198 ft
3
68.4 mi
Loop 2 - Island View Aid
7.4 mi +1,651 ft-1,613 ft
4
75.8 mi
Loop 2 - Warm Springs Aid
Sun 7:00 AM
5.5 mi +1,254 ft-963 ft
5
81.3 mi
Loop 2 - Wulflow Water
3.0 mi +718 ft-445 ft
6
84.3 mi
Loop 2 - Liberty Glen Aid
4.5 mi +1,038 ft-944 ft
7
88.7 mi
Loop 2 - Lone Rock Aid
Sun 12:30 PM
4.1 mi +733 ft-1,381 ft
8
92.8 mi
Loop 2 - Falcon's Nest Water
4.1 mi +1,381 ft-732 ft
9
97.0 mi
Loop 2 - Lone Rock Aid
4.1 mi +574 ft-1,505 ft
F
101.1 mi
Loop 2 - Lake Sonoma Visitor Center Aid
Distance: miles | Altitude: feet | Time: PDT